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User Manual Cable TV RF Measurements Software for Windows

1. cece cece reece eens 3 39 The Get Stored Results dialog box 0 3 41 The Import Results dialog box 0 eee00 3 42 Imported results messages ccccecsecscees 3 43 The Configure Menu ccceccscsccscees 3 43 The Worksheet Info dialog box 0008 3 44 The Test ID dialog box ccc ccc ce ccs ceeeee 3 45 The Preferences dialog box ccececeeces 3 46 How measurements are saved when history is turned OFF and then OM 6 6 creerecer ec ieceri t nee TEE EEE E E we 3 47 Measurement Sequence dialog box 005 3 49 Edit Time Parameter dialog box 2 005 3 51 Create 2714 2715 UDP dialog box 005 3 52 The Measurement Limits dialog box 3 57 The Edit Limits File dialog box 005 3 58 How the upper and lower limits work 3 59 The Save As Defaults dialog box e0008 3 60 Summary Limits dialog box 0eceeeeee 3 61 The Parameters dialog box cceceececees 3 62 The Measurement Setups dialog box 3 62 The Edit Setups dialog box c ccs eeeeees 3 64 CTB CSO measurement results distribution and CSO setup restrictions 0 cece cece cee cece cece eee 3 67 Get Defaults dialog box cece ee eee eens 3 67 Save As Defaults dialog box e ee eeee 3 68 Copy to All Channels dialog box 4 3 68 Connections
2. 2 41 Figure 2 35 The Edit Setups dialog box for channel 2 2 42 Figure 2 36 The Get Defaults dialog box eee eee 2 44 Figure 2 37 The Worksheet Info dialog box used to change the Channel Table 5 66 0 60 65 sees aos eysivins sia da Hale ee Sade ee os es 2 46 Figure 2 38 Warning message that the worksheet has changed 2 46 Figure 2 39 The Preferences dialog box ssusssusonsoesso 2 47 Figure 2 40 A three dimensional view of a spreadsheet 2 48 Figure 2 41 The life of a cell with Collect History turned on and off 2 49 Figure 2 42 Prompt to connect the input signal to the 271X 2 51 Figure 2 43 Message box stating that measurements are paused 2 51 Figure 2 44 The measurement Alarm message box 2 51 Figure 2 45 Message box stating that measurements are paused 2 52 Figure 2 46 The Results Detail dialog box for the Hum LFD Measurement 206555 en titie as yew ge EEE Rew ere EEE we 2 54 Figure 2 47 The Results Detail dialog box for the In Channel Response measurement for the first channel 2 55 Figure 2 48 The worksheet after making all of the measurements for the first three channels 0 0c cece cece cere eens 2 56 Figure 2 49 The Status Report cc ccc cece ccc e ee eeeees 2 57 Figure 2 50 The View Violations display eeeeeee0 2 58 Figure 2 51 The Results Detail display e
3. 3 14 Import Import see Figure 3 8 brings in data from another source An acceptable source is results data previously exported from the software Use Import to load data collected at remote locations using UDPs User Defined Programs If the channel table or site does not match the present worksheet you are asked if you want to continue importing the results If the channel table does not match and you continue to import the results will map to the channel number skipping any channel not in the channel table for the worksheet If the site does not match you can use the worksheet site or the site of the imported data It is good practice to import into a blank worksheet to minimize the possibility of conflicts and unexpected data placement If you do not write to a blank worksheet Import will not overwrite your work History is automatically turned on before an Import takes place and turned off again when Import is complete For example you have data in one cell Import data into that cell with Keep only Last Result set in the Preferences menu Your data is still there and the imported data falls into its place in the history stack either before or after the current results The data is stored in the worksheet according to Date Time If the data that you are importing is older than the current data in the worksheet then the imported data is not visible in the worksheet It is available in Results Detail with view his
4. Auto Auto with Pause Single Sweep Test Locations MHz fo Rel Abs sd Rel O Abs sd Rel Abs Rel Abs Both Copy to All Channels Help In Channel Response C Gated Test Locations MHz C e Ret Abs Figure 3 46 The Edit Setups dialog box Carrier to Noise Group Select the Auto Auto with Pause or Gated option button Auto with Pause requires that the carrier be turned off to make the measurement The measurement will stop prompt you to turn off the carrier and wait for you to respond that the carrier is off before continuing to make measurements Auto makes the measurement without taking the channel out of service or requiring any operator interface Gated makes the measurement on a non modulated line therefore there are no requirements to turn the carrier off or take the channel out of service Gated is only available for the 2715 Enter the bandwidth for the noise calculation in the Noise Bandwidth text box ACL Group Measures the power in the channels adjacent to the channel under test This is a headend test with the 2715 connected to the test port of the modulator Select Upper to measure the power in the upper adjacent channel only Lower to measure the lower adjacent channel only or Both to measure both the upper and lower channels In Channel Response Group Selects how you want the In Channel Response ICR measurement executed Enter the six relat
5. 4 Choose OK The next time you start the software from that icon your template worksheet template wrk will automatically load and be ready to run Make sure that you save it under a new file name right away to avoid changing template wrk unexpectedly You could define several software icons each one with a different template for different uses For example you can have one for getting stored results from the 271X and one for local data gathering Adding Information tothe All of the help files are completely editable using a basic text editor They were Help Files created using Notebook from Windows The only restriction is that only 80 characters per line are allowed There are several reasons why you may want to edit the help files a few of which are given below m You may want to put a check list in the UDP help text to make sure that all of the appropriate preferences are set before the UDP is generated m You may want to put reminders of which channels need to have special Limits files attached to them in the Limits file dialog box There are also help topics at the end of Contents in the Help menu for you to fill in with your own information These are the help files for the measurements They are here for you to note how these tests are to be performed how often what time of day and so forth whatever you need to put in these files The measurement help topics and the files you need to edit for each topic a
6. FIELD is a sub directory of JULY95 that contains all of the field measure ments made that month Again notice that there are no files above the level only directories HEADEND WRkK is the worksheet used to define control and collect results for this Headend test session HEADEND WSR contains the actual results from this Headend test session Cable TV RF Measurements Software for Windows User Manual Appendix D FCC Measurements 7 FIELD WRK is the worksheet used to define control and collect results for this field test session 8 The rest of the files are the actual measurement results from the TP132 and TP146 test Sites Test IDs collected during this session FCC Headend Measurements The FCC Headend measurement requirements consist of a series of RF measurements taken on a set of channels at the Headend The following describes how to use a Measurement Sequence to perform all the required Headend measurements and how to collect and present the measurement results Configure a New Configure a new worksheet to match the system and testing methods Worksheet 1 Choose New from the File menu m Set the Channel Table and Site name to match the system For example use STD CHT for Channel Table and Headend name for Site 2 Set up the worksheet items listed below from the Configure menu m Test ID Set to a test session identifier or operator name such as Headend Test 7 16 1995 m Preferences
7. Delete Select Limit Check Switcher Control String Connections Figure C 22 The Transfer Menu m To Takes the current channel table and loads it into the selected test instrument See Figure C 23 C 22 Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor To 2HAPTG TDC 10 27214 RFM150 Help Figure C 23 The To dialog box NOTE If the channel table is currently in use by the instrument this command is refused m From Extracts a previously existing channel table from a piece of test equipment and puts it in a format the Channel Table Editor can use It prompts for confirmation if the current channel table has been modified but not saved to a file since it will be overwritten during this operation See Figure C 24 ORUE TDC 10 27214 RFM150 Hep Figure C 24 The From dialog box After an instrument has been selected the dialog box shown in Figure C 25 appears It lists all of the channel tables currently in the instrument Select which channel table you want copied from the instrument then OK The channel table is then copied from the instrument to the Channel Table Editor window Cable TV RF Measurements Software for Windows User Manual C 23 Appendix C Channel Table Editor C 24 From Select Table Figure C 25 The From Select Table dialog box m Delete Delet
8. Measurement History is not required for this example so set it to Keep Last Result Only m Measurement Limits m Measurement Setups Define the Measurement Define the Measurement Sequence used to execute the required measurements Sequence Choose Measurement Sequence from the Configure menu 2 Define the measurements by choosing the FCC Headend Msmts command button This provides a method to easily select the required measurements Carrier Levels and Frequencies are automatically selected for ALL channels 3 Select specific test channels for the FCC measurements using the Select command button These are the system specific test channels chosen to comply with the FCC regulations on number of test channels based on system frequency limit Cable TV RF Measurements Software for Windows User Manual D 3 Appendix D FCC Measurements Summarize the Measurement Sequence D 4 Results FF AS 11 1 D An eA Y amp Select the OK button when the selected test channel list is correct The Measurement Sequence dialog box displays the selected FCC Headend measurements Define the Measurement Sequence execution time parameters by choosing the Edit Time Parameters command button Set it up to run immediately 1 time Select OK to return to the Measurement Sequence dialog Select OK to return to the worksheet Execute the Measurement Sequence using the Exec Seq command button on the Button Bar or Measurement Se
9. O Pause on New Channel Pause Execution Report out RS 232 O On Caution O On Caution O On Alarm O On Alarm E On Error O On Error Figure 2 39 The Preferences dialog box There are three Preferences groups They are Measurement History Power Level Units and Measurement Execution Measurement History This option button allows you to collect history or keep the results of only the Group last measurement If you choose to collect history the previous results are saved but not visible on the spreadsheet The spreadsheet is actually three dimensional Channel Measurement and Time but only two dimensions are visible Channel and Measurement Only the top most recent measurement of the time stack is visible on the spreadsheet The three dimensional spreadsheet structure is shown in Figure 2 40 Cable TV RF Measurements Software for Windows User Manual 2 47 Advanced Setups Tutorial Figure 2 40 A three dimensional view of a spreadsheet When you select Collect History measurement results are saved beginning with the current measurement what is currently in the spreadsheet An example of why you would want history collected on a measurement is the 24 Hour variation test This measurement is performed by running the Carrier Levels and Frequencies 4 times in a 24 hour period and comparing the collected results Another example is a measurement that is failing sporadically By taking the measurement over a period
10. cccccccccccs ccs cccscccseces Warning Messages cc ccc cccccccccsccscees Informational Messages cccccccscsccscees Channel Table 5 60 dic Sie 34ce to Se O5 eee Sie SB Sib ee eas The Channel Table fields available from each group How the results are exported from the 271X Files and their approximate sizes 0500 Software file types and their naming conventions Help Topics and Their Associated Files The271X SWINE File opresor conse enaena ae ees Settings for Windows Terminal Program Settings for Local Modem c eee ececceces Settings for Remote Modem ececeeeeees Settings for the 271X 2 ccc ccc cece cece eee eee Cable TV RF Measurements Software for Windows User Manual 1 3 1 4 1 4 1 5 2 31 3 17 3 19 3 20 3 22 3 28 3 50 3 53 3 55 3 55 A 1 B 1 B 9 B 10 C 13 C 20 D 11 E 1 E 2 E 3 F 1 F 2 F 3 xi Table of Contents xii Cable TV RF Measurements Software for Windows User Manual Preface Welcome to Cable TV RF Measurements Software for Windows Customer Support What is in this Manual The Cable TV RF Measurements Software for Windows is Microsoft Windows based software to control and display measurement results of the 2714 and 2715 The point and click user interface makes operation easy even for the inexperi enced user Making a measurement is as simple as selecting a
11. d For this example we will use the File Import menu item to load analyze and report the measurement results Select Close to return to the worksheet 4 Now that the FCC field test results have been retrieved from the 271X and stored into results files we have all the measurement results analysis and summarization capabilities of the software at our disposal First import the results from TP132 using File Import a Choose Import from the File menu b From the directory list box select FCCTESTS JUL95 FIELD c Inthe File Name box enter TP132 WSR d Select OK to import the results m We want to make the worksheet Site name match the Site name of the results we are importing Therefore select Yes when prompted about changing worksheet Site to match import Site This prompt will appear only if the worksheet Site does not match the Site of the results being imported m The 271X stores only the channel number as a channel ID The software stores Channel Number Letter Tag Program Name and Nominal Visual Carrier Frequency Therefore a channel mismatch message is displayed Select the Use blank channel information as wildcards option button in the Import Channel Criteria group This will allow importing of all appropriate results without further prompts Select the Use Channel Results button to continue e The results from TP132 WSR are loaded into the worksheet These are the FCC Pre Converter and FCC Visual Level Var
12. dBmyv dBu Measurement Execution Prompt for Signal Connection O Pause on New Channel Pause Execution Report out RS 232 O On Caution O On Caution O On Alarm O On Alarm O On Error O on Eror Figure 3 34 The Preferences dialog box Measurement History History the previous measurement results can be collected or only the most recent measurement saved If History is off not collected and then turned back on the measurements are saved beginning with the current measurement displayed on the worksheet Turning history off does not erase any results previously stored when history was on For an illustration of how this works see Figure 3 35 Cable TV RF Measurements Software for Windows User Manual Menu Bar Turn history on Make 2 more measurements 9 Stack after 4 more measurements 8 Turn history off here 7 3 3 3 2 2 2 Measurements in the stack 1 1 1 Figure 3 35 How measurements are saved when history is turned off and then on Power Level Units Choose one of the two formats to display the Visual Carrier Level and Average Power units dBmV referenced to 1 mV 10 3 Volts dBuV referenced to 1 uV 10 Volts Measurement Execution These check boxes determine whether the measurements will stop and flag certain conditions and how you are notified of these condi tions The first op
13. 2 31 3 49 D 3 summary D 4 FCC Post Converter 2 31 3 49 FCC Pre Converter 2 31 3 49 File 3 11 Channel Table Editor C 15 files naming convention E 2 From Transfer C 22 G Gated Carrier to Noise 2 43 CSO 2 43 generate a 2714 UDP 3 52 Get 2714 Stored Results Export Results 3 41 Import Results 3 41 Get Defaults Edit Limits File 3 59 Edit Setups 2 44 3 67 Measurement Setups 3 63 Get Stored Results from 2714 2715 2 81 3 40 Global Button Bar 3 72 Global View 3 32 GPIB 1 1 2 40 3 68 B 1 B 6 B 8 C 25 C 26 Address 2 40 gray 2 23 3 32 green 2 23 3 23 3 32 GVG switcher control C 30 H hardware requirements pc 1 1 Help 3 70 B 4 B 5 Channel Table Editor C 26 help Tektronix help line xiii help files adding information E 3 history 2 47 2 59 2 65 B 9 E 6 copy 3 19 Export 3 15 import 3 14 limits files 3 57 Preferences 3 46 Results Detail 3 25 navigation 3 27 Status Report 3 22 Horizontal Scroll Bar 3 6 Hum LFD Glossary 1 ICR E 8 ICR Test Line channel information C 29 Import 3 14 B 9 channel number 3 14 channel table 3 14 error 3 14 history 3 14 Site 3 14 view filter 3 36 Import Channel Criteria Get 2714 2715 Stored Results 2 85 Import Results Get 2714 Stored Results 3 41 Get 2714 2715 Stored Results 2 83 In Channel Response 2 44 Glossary 1 Edit Setups 3 64
14. 2 42 Preferences 2 46 3 46 history 2 47 Pause Execution 2 50 Pause on New Channel 2 50 Power Level Units 2 49 Prompt for Signal Connection 2 49 UDP 2 78 3 53 Print 2 34 3 16 Button Bar 3 72 Channel Table Editor C 16 Expand Columns 2 36 Portrait or Landscape 2 35 3 16 Results Detail display 2 36 worksheet 2 36 Print Setup 3 18 Channel Table Editor C 17 printing Expand Columns 3 16 Program 3 5 channel information C 28 Prompt for Signal Connection 2 49 E 6 Q Quiet Line channel information C 29 R red 2 23 3 23 3 32 Repeat Interval Measurement Sequence 3 52 Report out RS 232 error caution alarm 2 50 Restore 3 9 button 3 4 Channel Table Editor C 14 Results 2 54 2 58 Button Bar 3 72 Detail from Global View 3 33 Results Detail 2 54 3 25 B 4 display 2 54 2 58 navigation 2 55 Global View 2 23 Notes 3 27 RFM150 Carrier to Noise Bandwidth channel information C 29 RFM150 Channel Type channel information C 28 RFM150 Second Aural channel information C 28 RS 232 1 1 3 69 B 1 C 25 Address 2 40 S Save 3 13 Button Bar 3 72 Channel Table Editor C 16 Save As 3 13 Channel Table Editor C 16 Save as Default Worksheet Info 3 44 Save As Defaults Edit Limits File 3 59 Edit Setups 2 44 3 67 Measurement Setups 3 63 Save As Limits File Edit Limits File 3 59 Scramble channel information C
15. 28 scrambling 2 19 Screen 2714 2715 3 33 Second Aural Frequency measurement not made 2 20 Select Channel Table Editor C 24 select cell 2 11 column 2 13 row 2 13 Select All 3 21 Select Limits File Measurement Limits 3 57 Sequence 3 40 Setups Button Bar 3 72 command button 2 41 Site 2 5 3 5 3 11 3 14 B 4 E 6 get 2714 stored results 3 41 Get 2714 2715 Stored Results 2 83 UDP 3 56 D 10 Worksheet Info 3 44 Size 3 10 Channel Table Editor C 14 software installation 1 2 Sort Channel Table Editor C 19 spreadsheet full view 2 68 start time Measurement Sequence 3 52 Status 2 56 3 22 Button Bar 3 72 Status Report 2 56 3 22 from Global View 3 33 measurement summaries 3 22 Summary Limits 2 76 3 60 Switch To 3 10 Channel Table Editor C 15 Switcher Control String C 25 channel information C 30 Sync Polarity channel information C 29 Cable TV RF Measurements Software for Windows User Manual Index 5 Index T T Channels C 12 C 13 Table Name Edit Table Info C 19 Tag 3 5 channel information C 28 TDC 10 Preamp E 7 TDC 10 Aural Offset Edit Table Info C 19 Test ID 2 5 3 5 3 45 B 4 E 6 All Test IDs 3 45 Button Bar 3 72 UDP 2 78 3 53 view filter 3 37 3 46 Worksheet Test IDs 3 45 Test ID Results 2 70 Test Pulse Offset channel information C 29 Title Bar 3 3 To Transfer C 21 Transfer B 6 Channel Ta
16. 30M results To import the FCC Post Converter results repeat steps a d above using File Name TP132_PC WSR Note that the Site name override prompts are not presented since the Site name is the same as the results previously imported f Answer Yes to the prompt about Channel Table name mismatch We want to import the results regardless of whether they were generated with std cht or std pc cht D 12 Cable TV RF Measurements Software for Windows User Manual Appendix D FCC Measurements NOTE The FCC Post Converter results were generated using the special post converter Channel Table as described above Here we are importing those results into a worksheet that uses the normal STD Channel Table This is acceptable because the 271X stores only the CHANNEL NUMBER as the channel identifier and therefore all the results are placed into the correct spreadsheet cells without conflict However since the Post Converter Channel Table we used had all the visual carrier frequencies set to a single value the counted visual carrier frequencies for the FCC Post Converter results will reflect that one single channel frequency value and will not match the STD Channel Table values This will result in alarm status for the visual carrier frequency results for the Post Converter measurements Therefore a worksheet status report done without any Test ID Results view filter in place will result in unwarranted alarms for the visual carrier frequency res
17. 9 From the File menu choose Save As The Save As dialog box appears as shown in Figure 2 11 File Name Directories c 271x_sw Sen Cancel gt 271x_sw help G limits Drives c tek_159438 Figure 2 11 The Save As dialog box 10 In the File Name combination box type example 11 Choose the OK command button The file name example wrk is in the Worksheet Header Enter a TestID 1 From the Configure Menu select Test ID or choose the Test ID command button from the Button Bar This displays the Test ID dialog box as shown in Figure 2 12 2 16 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial All Test IDs Learner s Permit lt undefined gt Learner s Permit Cancel Worksheet Test IDs Figure 2 12 The Test ID dialog box 2 Select a Test ID Mouse Keyboard Type in a Test ID or select from the combina Type in the Test ID or select one from the list tion box click on the arrow if present and box by scrolling through the list press the necessary in the list box and then selectone down arrow key The example uses Learner s Test ID from the list The example uses Permit Learner s Permit 3 Leave the Test ID dialog box and save the changes by choosing the OK command button The Worksheet Header should look similar to Figure 2 13 Worksheet example wrk Site Tektronix Beaverton PEE Ch
18. Cable TV RF Measurements Software for Windows User Manual C 13 Appendix C Channel Table Editor Table C 1 Channel Table From What Channel Table Instrument Name Contents Function TDC 10 B CAST CHT North America VHF UHF Broadcast channels CATV STD CHT United States CATV standard channels no T Channels CATV HRC CHT United States CATV HRC harmonically related carriers channels CATV IRC CHT United States CATV IRC increment related carriers channels EUR BG CHT European system B G UHF VHF and CATV EUR I CHT European system UHF J APAN M CHT Japan system M UHF UHF CHINA DK CHT China system D K UHF VHF 271X STD CHT3 United States CATV standard channels no T Channels frequency limited to channel 94 HRC CHT United States CATV HRC harmonically related carriers channels IRC CHT United States CATV IRC increment related carriers channels 2721A STNDRD CHT United States CATV standard channels no T Channels frequency limited to channel 94 J APAN_M CHT Japan system M UHF UHF EUR_BG CHT European system B G UHF VHF and CATV EUR_I CHT European system UHF EUR_I1 CHT European system UHF CHIN_DK CHT China system D K UHF VHF none SDTOFST CHT United States CATV standard channels with common frequency offsets applied 3 Note that the T channels are not included in this channel table but they are included in the channel table with the same name in the 271X This is because the TDC 10 cannot make measuremen
19. If you request one of these measurements the software will try to make all six even if they are not in view It cannot make the Second Aural Measurements if they are not enabled in the Channel Table 10 Return to the full spreadsheet From the View menu choose Measurements and Channels The view automatically switches back to the full display You can toggle between the filtered and full view by selecting deselecting Measurements and Channels from the View menu If you only want to see the results from the last Measurement Sequence use the Measurement Sequence Results view filter At the end of every Measurement Sequence execution you are prompted if you want this filter turned on For example define a Measurement Sequence run it and then display only its results using the view filter 1 Clear the present spreadsheet From the Edit menu choose Select All Then from the Edit Menu choose Clear and select the check boxes to delete Current Values and Measurement History 2 From the Configure menu choose Measurement Sequence You are now in the Measurement Sequence dialog box 3 Choose the Clear Sequence command button to clear the Measurement Sequence 4 Select the following measurements for the first four channels Carrier Levels and Frequencies CTB In Channel Response Modulation Depth 5 Choose the Edit Time Parameters command button You are now in the Edit Time Parameters dialog box 6 Select the Run Imme
20. Letter lt blank gt lt blank gt Program lt blank gt lt blank gt Frequency 55 25 lt blank gt Import Channel Criteria Exact channel information match only Use blank channel information as wildcards Verify mismatched channel information Figure 2 78 The Import Results dialog box 12 Select Use blank channel information as wildcards Not that there are three Import Channel Criteria option buttons m Exact channel information match only m Use blank channel information as wildcards m Verify mismatched channel information Generally when using Import to get results from a 2714 or 2715 into a worksheet the Use blank channel information as wildcards is the most efficient option since there will never be an exact match Although you could go through and verify each channel to make sure that the channel numbers match using the Use blanks as Wildcards selection is the most efficient way to load the data because it reduces further prompts NOTE Results for Channel Numbers not in the Worksheet Channel Table are always ignored You are notified that they were not loaded at the end of the import process Any cell without results data or in error condition will not be imported Cells that have more than one measurement will have all valid data imported and the Error data results left blank Results from a channel table that has mismatches in the channel header no destination channel an inactive
21. Some operations for example sending a large channel table send large binary files to the 271X At baud rates of 2400 and higher the 271X may not be able to keep up with the PC If any data is lost or corrupted the 271X may operate unpredictably This is especially inconvenient if the analyzer is at a remote location Using hardware flow control and error correction allows reliable performance The details of the setups for the PC modems and 271X follow The modem commands listed are from the standard Hayes command set If the commands for your modems are different use the appropriate commands to configure the features as described below Terminal Program Settings Set the terminal communications settings as shown in Table F 1 Table F 1 Settings for Windows Terminal Program Communication Setting Value Baud rate 9600 Data bits 8 Stop bits 1 Parity none Flow control hardware Parity check unchecked Carrier detect unchecked Connector one that is available Cable TV RF Measurements Software for Windows User Manual F 1 Appendix F Controlling a 2714 2715 Over a Modem Local Modem Settings A baud rate of 9600 is the fastest the 271 X can handle You can set the port to use whatever baud rate is available The Cable TV Software Connections settings must match the port and baud rate selected in the Windows Terminal program Set up the local modem with the commands shown in Table F 2 Table F 2 Settings for Loc
22. View Sequence Filter is On and View Test ID Filter is On Enable the view filters through the View menu see page 3 21 This is the list of channels defined by the channel table Change using the Create Edit Channel Table command button from the Configure menu Worksheet Info see page 3 43 There are up to four fields in each channel cell m Number The number by which this channel is commonly known m Tag An up to 3 character designation for the channel such as AA or 2 B m Visual Frequency The frequency of the visual carrier m Program An up to 6 character identifier for the channel usually used for the channel call letters or abbreviated name You can edit which fields are displayed using the Row Header Fields from the View menu see page 3 38 The Channel Table Editor defines these fields see Appendix C Cable TV RF Measurements Software for Windows User Manual 3 5 Parts of the Worksheet Measurement Header Vertical Scroll Bar 3 6 The Measurement Header is the measurement list The measurement list includes m Visual Carrier Level m Visual Carrier Frequency m Aural Carrier Level m Aural Frequency Offset m Second Aural Carrier Level m Second Aural Offset Frequency m Average Power m Carrier to Noise m Desired to Undesired m CSO CTB m Cross Modulation m Adjacent Channel Leakage m In Channel response m Hum LFD m Modulation Depth m Aural Deviation The Vertical Scr
23. all these measurements are made whether they are visible or not If you select all channels by clicking on one of the Carrier Level and Frequency Measurement headers and the Average Power header you are still given the option to do a Carrier Survey even if all channels are not viewable When you return to All for the Measurements and Channels options the list of selected measurements and channels remains You can toggle between the filtered and full display quickly If the View Filter is on and you are trying to import results that would enter a hidden row or column you are warned that all of your imported results are not immediately viewable You can switch to any other View Filter by choosing it from the View menu There is a special command button View Used for this dialog box This command allows you to automatically filter off all channels and measurements that have no results View Used is particularly useful for printing out worksheets Use this immediately before printing reports to minimize the amount of blank space NOTE The View Filters also affect the Status Report Measurement Summaries Channel Summaries and the Results Detail display When this filter is active only those measurements made with the most recent Measurement Sequence execution are on the spreadsheet Not necessarily the current measurement sequence See page 3 48 for how to define a Measure ment Sequence For example if you have def
24. existing 2714 2715 stored results were successfully loaded loaded from the instrument Usually indicates corrupt stored results Remove the stored results from the 2714 2715 E225 Cannot load existing 2714 2715 stored None of the stored results currently found in the 2714 2715 could be loaded results Usually indicates corrupt stored results Remove the stored results from the 2714 2715 E226 The selected channel cannot be setin the 2714 2715 failed to tune to the channel requested Channel Table may be 2714 2715 incorrect E227 Reserved E228 The selected channel table cannotbe set Problem occurred in loading a Channel Table to the 2714 2715 Verify in the 2714 2715 Channel Table with the Channel Table Editor CTLOADE application Either the channel table is invalid or there is no available slot in the instrument E230 You must manually delete duplicate UDP There already is a UDP with that name loaded into the 2714 2715 If you title XX first and then retry really want to use that name delete the old name first E231 The UDP menu is full You must manually The 2714 2715 only has room for 9 UDPs Delete one or more before trying delete a UDP from the 2714 2715 first to load the UDP again and then retry E233 UDP is too large to load aborting There is a limit on the number of measurements that can be in a UDP operation Delete some of the measurements and try to reload E234 UDP may be too large to execute in the Delete the UDP from the 2714 271
25. lt undefined gt No View Filter is On Measurement Summary Hum LFD Hum LFD Fundamental 11 9 E Second Harmonic _ 2 9 Worksheet Navigation Violated Violated Measurement Lower Upper Limit Limit n ____ Figure 2 46 The Results Detail dialog box for the Hum LFD measurement Note that the Select History Next command button is gray but the Prev button is black This indicates that you are looking at the most recent measurement results and there is history on that measurement 3 4 Look at the History Of this 1 Measurement 2 3 2 54 Scroll the Results Detail dialog box horizontally to display the Date Time and Test ID Note the time of the measurement Scroll back to the far left of the Results Detail dialog box Choose the Prev command button Note that this information is from the previous time you made this measurement Confirm this by scrolling horizontally to the Date Time column Choose the Prev command button again Repeat until the Prev command button is gray You are now at the first measurement for this cell on this worksheet Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial 4 Choose the Next command button until you are back to the most recent measurement The Next command button is gray Move Around in the You use the Worksheet Navigation arrows to move between channels and Results Detail Display measurements without leaving t
26. the Measurement Headers and the Channel Headers Cell One small box on the spreadsheet the intersection of one measurement and one channel Worksheet Header Figure 2 2 illustrates the Worksheet Header which lists important information about a worksheet Edit this information in various ways depending upon which piece you would like to change See page 2 14 for how to set up a worksheet Worksheet lt untitled gt Site lt undefined gt a Va Herc Chan Table std cht Test ID lt undefined gt o Yiew Filter is On Figure 2 2 The Worksheet Header Worksheet The name of the current worksheet It is called lt untitled gt if the worksheet has not been saved 2 4 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Chan Table This file lists the channels in the system under test There must be a Channel Table or the software will not run Site An additional identifier for the worksheet Site is intended to be the location where the measurement takes place Only one Site is allowed for each worksheet lt undefined gt is a valid Site name Test ID This is the name or ID of the person who is making the measurements the measurement test point or any other identifier that might be appropriate A single worksheet can have multiple Test IDs It sub divides measurements made at a single Site such as Pre converter and Post converter lt undefined gt is a valid Test ID name View Filter Stat
27. the channel tables used by the software and the equipment must match the cable system connected to the equipment If any of the three do not match measurements you take will be incorrect errors will be returned or the software will behave unpredictably Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor The 2714 will not perform digital measurements but uses the same channel table format as the 2715 If the software attempts to take a measurement on digital channels using the 2714 measurements returned will be incorrect errors will be returned or the software will behave unpredictably Channel Table Names In order for the software measurements to execute properly the channel tables in the test equipment must exactly match the channel table specified in the software Worksheet Header If at measurement time the software detects that the channel table does not exist by NAME in any of the test equipment that uses channel tables the software loads the current channel table to the test equipment This scheme allows you to easily switch to different named channel tables as follows 1 Choose Worksheet Info from the Configure menu 2 In the Channel Table group select a new table from the combination box 3 Choose the OK command button to end the worksheet Info dialog At this point a new worksheet is created A message appears allowing you to save the old worksheet 4 When a measureme
28. 2 57 Advanced Measurements Tutorial View Violations Channel Table std cht Site Tektronix Beaverton No View Filter is On View Results Detail Print Violated Violate Measurement Lower Upper Limit pe Vi 2 Visual Carrier Froqiency MHz 2 Auwal Carrier Level dBc 2 Aural Frequency Offset MHz 2 _ Cross Modulation dBc 2 In Channel Response dB 2 Hum LFD 2 Modulation Depth 3 _ isual Carrier Frequency MHz 3 Carrier to Noise dB Figure 2 50 The View Violations display 4 Go to the Results Detail display for your first measurement in the View Violations dialog box In this case it is Visual Carrier Level Adj dB for channels 2 and 3 5 Place the cursor somewhere in the first row 6 Either double click the left mouse button in that cell single click with the right mouse button or choose the View Results Detail command button See Figure 2 51 This is the same Results Detail Display that you would access by selecting that channel and measurement cell from the spreadsheet and then either clicking the right mouse button or choosing the Results command button from the Button Bar 2 58 Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Results Detail for Carrier Levels and Frequencies Worksheet Navigation Channel 2 55 25 MHz Channel Table std cht Site Tektronix Beaverton No View Filter is On Measu
29. 2 dB flag CTB Same as CSO Beat number location type and 2 dB flag Cross Modulation Adjacent Channel 2 2 dB flag Leakage In Channel Response sddd dZ sddd dZHz RF Min Max RF Frequency Offset and Ga signal type RF 5 G is the line number of the test line Hum LFD 60 Hz or 50 Hz Power Line Frequency Cable TV RF Measurements Software for Windows User Manual Menu Bar Table 3 5 Explanation of the notes field Cont Notes field RF Measurement Modulation Depth Aural Deviation Signal Type 1 This note is not available for stored measurements retrieved from the 271X 2 Ifan asterisk is present the measured value is within 2 dB of the analyzer noise floor The actual value may be better than the one indicated 3 The results of the Carrier to Noise and CSO measurements may be 1000 larger than the measurement This indicates that the Quiet Lines measured were no longer quiet at the end of the test The true answer may be better than the one indicated The results of the Carrier to Noise and CSO measurements may also be 2000 larger than measured This indicates that the mixer level was raised above the optimum to allow the video modulator board to work The true answer may be better than the one indicated Note also that the 1000 and 2000 flags are additive so the result could be 3000 above what was measured indicating that both conditions occurred 4 G is only inserted
30. 30 94 or earlier The UDP may still be generated but the digital measurements will be skipped E240 Reserved E241 Reserved E242 Unknown response received from 271X The content of the query response was not what was expected Try the operation again E300 Error initializing 271X_SW The file has become corrupted Try reloading the software from the master disk E301 271X_SW or CSS 500 already running Only one copy of the 271X_SW or CSS 500 software can be run ata time Either use the software thatis already open or exitit before continuing E302 Error creating window Running low on memory Try closing other applications E303 Memory allocation error operation Running low on memory Try closing other applications canceled E304 Instrument connections could not be Check the instrument connections and the cabling Make sure that the initialized address is correct E305 Error opening file XX The file is corrupt or notin the proper format File cannot be found E306 Error closing file XX The file as been corrupted or your computer is out of memory space E307 Error writing file XX Possibly out of disk Free some disk space and then try again space E308 Corrupted data in file XX The file is notin the correct format E309 End of file encountered in file XX The file has been corrupted E310 XX file XX is not valid The file is corrupt or the wrong file type File is found butit is the wrong file type E311 One or more Limits f
31. A right mouse click on the Channel or Measurement Header name will also access these reports These displays are a cross between Status Reports and Results Detail displays The View Filter affects these displays Information in hidden rows or columns is not contained in the Measurement or Channel Summaries The results contained in the measure ment history can also be incorporated into these summaries The Channel Summary see Figure 3 20 displays violations for the selected channel You can move to a different channel by using the Select Channel navigation arrows You can also select a cell and view the Results Detail for the measurement for that channel 3 30 Cable TV RF Measurements Software for Windows User Manual Menu Bar Channel Summary for Channel 3 lect C 7 z Channel Table std cht Selaci Channel View Results Detail Site Tektronix Beaverton o 7 Include Histor No View Filter is On x All Violations Violated Violated Measurement Lower Upper Limit Limit Visual Carrier Frequency MHz 2 pu Carrier Level dBc HEE Aural Frequency Offset MHz 3 Carier to Noise dB Visual Carrier Level Variation 24 Hour a ed ae Measurement Lower Upper Limit Limit 38 5 15 8 Visual Carrier Level dBm 49 Visual Carrier Level dBmV 59 5 el Figure 3 20 Example of a Channel Summary The example in Figure 3 20 gives the Visual Carrier Level Variation This information is always present in a Channel
32. By the end of this chapter you should be able to do the following m Select cells m Enter Worksheet Header information m Make simple measurements m Enter the Global View m Enter the Results Detail Display m Define a Measurement Sequence m Execute a Measurement Sequence m Define a Measurement Sequence using the Auto Selection buttons m View the broadcast picture on the computer monitor m Print out assorted reports Cable TV RF Measurements Software for Windows User Manual 2 1 Basic Tutorial What Can the Cable TV RF Measurements Software for Windows Do The purpose of the software application is to do the time consuming and tedious tasks of measuring and recording the results of measurements associated with a cable TV system To make a measurement on a particular channel simply select the cell where the channel and measurement intersect and double click the left mouse button The results are printed in the cell Print out the reports and the job is completed Of course this is a cable system and there are many channels and many measurements The software allows you to make many measurements rapidly by selecting several channels or measurements Start the Cable TV RF Measurements Software for Windows 1 Start the Windows program Tektro 2 Find the icon for the Tektronix Cable TV RF Measurements Software for 27 1x_sw Windows created during installation Mouse Keyboard Double click on the icon to start the applica En
33. CATV measurement results currently stored in the NVRAM of the 2714 2715 connected 2714 or 2715 Configure Worksheet Info Worksheet Info includes the Site Channel Table and description for the current worksheet Test ID This dialog box contains the name of an appropriate identifier Technician Name Test Suite etc There are two groups in the dialog box All Test IDs and Worksheet Test ID The All Test IDs group lists all of the Test IDs that have ever been used Worksheet Test IDs are the IDs used in the current worksheet Preferences This dialog box sets preferences in the way results are collected and displayed Measurement Sequence This dialog box allows the operator to program a set of measurements that will be executed as a Measurement Sequence This allows a regularly used set of measurements to be called with a single keystroke Measurement Limits Measurements Limits define the Alarm and Caution levels for the measurement results Measurement Setups This dialog box allows control over how measurements are executed in the instruments The Connections dialog box sets up the GPIB and RS 232 control connections Execute Channel Table Editor Allows you to switch to or start the Channel Table Editor application Help Lists all of the available help topics About Displays the Cable TV RF Measurements Software for Windows version number and other information A 2 Cable TV RF Measurements Software for Windows User Manual a fe a ne Appendix
34. Channel Table File It should end in cht Find the name in the Channel Table entry in the Worksheet Header All Attached Limits Files Find them in the sub directory limits under the directory that contains the 271 X_SW EXE file You can find the needed Limits files by scrolling through the Channel Limits list box in the Measurement Limits dialog box NOTE When you reconstruct a worksheet from archived files make sure that the limit files are placed into a sub directory called limits under the directory that contains the 271X_SW EXE file Make sure you do not overwrite any existing files during reconstruction The Cable TV Software and the Channel Table Editor place initialization settings in the WIN INI file under the heading of CSS500 Connections Initialization settings are only inserted in the file when necessary If the initialization settings in the WIN INI file become corrupt for some reason the CSS500 Connections section of the file can be completely deleted but not while the application is running The next time the software is run it will create a new CSS500 Connections section in the WIN INI file This section lists all of the lines in a typical 271X_SW INI file how they affect the application and where they are editable They can always be edited at the 271X_SW INI file itself but that is not a good practice because it is error prone and the software provides access to most of the parameters anyw
35. Channels View Filter from the View menu to limit the measurements printed in each worksheet The columns that expand are CSO CTB and HUM NOTE To print reports with many columns you may want to change from portrait to landscape orientation Use the Print Setup command to make the required changes You can save paper if you only print measurements and channels that have results associated with them Use the View Used command button from the Measurements and Channels dialog box in the View menu See page 3 35 for more details Cable TV RF Measurements Software for Windows User Manual Menu Bar Table 3 1 Measurements under each measurement header Measurement header Visual Carrier Level Visual Carrier Frequency Aural Carrier Level Aural Frequency Offset 2nd Aural Carrier Level 2nd Aural Frequency Offset Measurements under the measurement header Visual Carrier Level dBmV or dBuV Visual Carrier Frequency MHz Aural Carrier Level dBc Aural Frequency Offset MHz 2nd Aural Carrier Level dBc 2nd Aural Frequency Offset MHz Average Power Carrier to Noise Desired to Undesired CSO Average Power dBmvV or dBuV Carrier to Noise dB Desired to Undesired dB CSO dBc Up to 10 values CTB Cross Modulation Adjacent Channel Lkg In Channel Response Hum Modulation Depth Aural Deviation CTB dBc Up to 10 values Cross Modulation dBc Adjacent Channel Leakage dB In Channel
36. Copy and Export 2 60 Copy to the Clipboard Using Copy and Export you can get data out of the spreadsheet and into other Windows applications such as Excel or Word for additional processing or to include information in reports Copy moves the data to the Windows Clipboard while Export saves the data as a results wsr file NOTE These examples assume that you have Excel There are many reasons why you might want to move a few cells of data from the software application into some other Windows application You might want to average some of the measurements make a graph of some channels that seem to be deteriorating or paste them into a report The easiest way of getting a few cells of data is to copy them to the Clipboard using Copy from the Edit menu Copy Cells to the Clipboard 1 Select the Carrier to Noise cell for the first channel and make that measure ment several times 2 With that cell still selected from the Edit menu choose Copy The Copy dialog box appears as shown in Figure 2 52 ovon Fiter on D s Displayed Export Format Figure 2 52 The Copy dialog box 3 Select the Export Format option button and the Include Measurement History check box 4 Select the OK command button The information from the spreadsheet is copied to the Clipboard Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Paste the Clipboard Data 1 Use Switch To from the
37. Figure 2 42 If necessary connect the input signal to the 271X then choose the OK command button to continue The Cancel command button will stop the measurement and return you to the spread sheet Cable TV RF Measurements Software for Windows User Manual Advanced Setups Tutorial 2714 2715 SW Message O Switch RF signal connection to the 2714 2715 Figure 2 42 Prompt to connect the input signal to the 271X At the new channel the software displays the message shown in Figure 2 43 2714 2715 SW Message O Execution paused for next channel Figure 2 43 Message box stating that measurements are paused 3 If necessary tune the preselector to the channel then choose the OK command button to continue Choose the Cancel command button to stop making measurements and return to the spreadsheet If any of your measurement results fall into the Alarm range Figure 2 44 is displayed 2714 2715 SW Message O Alarm generated for current measurement Figure 2 44 The measurement Alarm message box 4 Choose the OK command button to continue making measurements You have another option You could choose the Cancel command button to stop making measurement and handle the measurement alarm When the measurements are finished with the first channel the Paused for Next Channel message is displayed as shown in Figure 2 45 Cable TV RF Measurements Software for Windows User Manual 2 51 Advanced Setups T
38. Group 2 76 2 Remove the Limits file associated with that file Choose the Clear Limits File command button Channel 3 no longer has a Limits file associated with it and the Limits File column is blank You know that a measurement has no defined limits when the results are in white cells on the spreadsheet 1 Choose the OK command button to save the changes and return to the spreadsheet Notice that the Alarm and Caution ranges have tightened and may have changed colors and that all measurements in the second channel are now in white cells 2 Choose the Limits command button from the Button Bar to return to the Measurement Limits dialog box 3 Change your first two channels back to their previous Limits file NTSC LIM 4 Choose the OK command button to save the changes and return to the spreadsheet The Summary Limits affect all of the channels and are not associated with any particular Limits file Edit the Visual Carrier Level Difference and the Adjacent Visual Carrier Level Difference like any other text box Click on the text box and enter a number between 0 0 and 40 0 to set the Alarm and Caution flags The results of these limits are not available on the main spreadsheet but rather in the reports such as the Status Report and the Measurement Summary for the Carrier Levels and Frequencies Visual Carrier Level Difference These calculated results look at the results of the Visual Carrier Level measurements to fi
39. Measurement Sequence menu They include Carrier Survey Edit Time Parameters Generate 2714 2715 UDP and Clear Sequence Carrier Survey If you want to make the Carrier Levels and Frequencies measure ments Visual Carrier Levels Visual Carrier Frequency Aural Carrier Level Aural Frequency Offset Second Aural Carrier and Second Aural Frequency and Average Power measurements on all channels in the Measurement Sequence then you can do a Carrier Survey instead of a series of individual measurements A carrier survey makes all of the Aural Visual Carrier Amplitude and Frequency and Average Power measurements first and then the rest of the selected measurements The advantages and drawbacks of selecting the Carrier Survey are as follows Advantages m Faster measurement execution m Smaller UDP size allows for more measurements to be loaded before exceeding the UDP size limit Cable TV RF Measurements Software for Windows User Manual Menu Bar Disadvantages m The Pause For New Channel preference will not pause for new channels within the survey m All measurement results are tagged with the same date and time Whether you select individual measurements or the survey the measurements will still be made in the mode specified in the Measurement Setups dialog box Edit Time Parameters The Edit Time Parameters dialog box tells the sequence when to start and how many times to run See Figure 3 37 Edit Time Parameter
40. Modes for Unattended UDPs Measurement Mode Carrier Levels and Frequencies Any mode Average P ower Accurate Amplitude Carrier to Noise Auto or Gated CS02 Auto or Gated CTB2 Autos Adjacent Channel Leakage Any mode Cable TV RF Measurements Software for Windows User Manual 3 55 Menu Bar Table 3 9 Modes for Unattended UDPs Cont Measurement Mode In Channel Response Gated4 Hum LFD Any mode4 Modulation Depth Any mode4 Aural Deviation Any mode 1 For Gated mode to work without user intervention in Carrier to Noise and CSO measurements the channel must not be scrambled If the channel is scrambled Carrier to Noise and CSO must be run in Auto mode to avoid user intervention 2 On digital channels CSO and CTB always run in Auto with Pause mode This mode requires user intervention To avoid user intervention make sure CSO and CTB are not selected for digital channels 3 Measure Beat in an empty adjacent channel 4 Ifthe channel is scrambled ICR Hum LFD and Modulation Depth cannot be run without user intervention The selected Channel Table must exist in the instrument when the UDP is run or an error message will occur The Channel Table is not loaded into the instrument by the UDP Use the Channel Table Editor to load the Channel Table into the instrument See Appendix C The Site is not part of the UDP and the operator must correctly load it into the instrument before the UDP is run This allows
41. NULL MB OK else if msg 1Param 3 MessageBox NULL Got Error Message NULL MB OK NOTE This option is not set anywhere It is automatically available whenever an alarm caution or error result is encountered This menu see Figure 3 36 allows the operator to program a set of measure ments to execute every time that either the Meas Seq command button see page 3 72 or Measurement Sequence command under the Measure menu see Cable TV RF Measurements Software for Windows User Manual Menu Bar page 3 40 is chosen This allows a regularly used set of measurements to be invoked with a single mouse click instead of running each individual measure ment one at a time Measurement Sequence Aun selecton Edit Time Parameters 24 Hour Test FCC Post Converter Create 2714 2715 UDP Cancel CC Pre C EE Msmt ECC Pre Converter FCC Headend Msmts eas Help and 2nd aval C1 DY CL CY ye Al ETH Mod Aur be Aur Aur owl 21 41 S71 T hod U pel devi Lev Freq Ue ETH atte Jd L RIM i Figure 3 36 Measurement Sequence dialog box An X in a cell indicates that the channel and measurement are part of the Measurement Sequence Select as many or few cells as needed in order to define a Measurement Sequence When all of the desired cells are selected choose the OK command button the Measurement Sequence immediately loads and is stored under the Meas Seq command button To spe
42. New Open Save Save As Print Print Setup Figure C 13 The File menu m New New empties the channel table and gives you a blank channel table Prompts for save if the current channel table has been modified m Open Open loads a previously existing channel table A dialog box prompts for a file See Figure C 14 Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor File Name Directories std_cht c 271x_sw japan m cht fe ch japan_m cht E gt 271x_sw learners cht 7 pumbtest cht C help std_cht G limits stdofst cht stndrd cht test1 cht Drives c tek_159438 2 Figure C 14 The Open dialog box m Save Save the changes made to the channel table to the file specified in the main Window caption If the channel table has no name it will prompt you for one m Save As Save As saves a channel table under a new name See Figure C 15 File Name Directories cht c 271x_sw an E cA gt 271x_sw help 3 limits Drives c tek_159438 2 Figure C 15 The Save As dialog box m Print Prints out the current channel table See the Windows User Manual for more information on this dialog box See Figure C 16 Cable TV RF Measurements Software for Windows User Manual C 17 Appendix C Channel Table Editor C 18 Printer Default Printer QMS PS 2200 on LPT1 Print Range All oO 3 oO Print Q
43. PAGE UP and PAGE DOWN are also available to move quickly through the spreadsheet HOME Moves to the first cell in the current channel END Moves to the last cell in the current row thathas a measurement made for any channel PAGE UP Moves the spreadsheet up one page Measurement stays the same and the current channel is the first channel that is at the top of the screen Nothing happens if the top channel is currently visible PAGE DOWN Moves the spreadsheet down one page Measurement stays the same and the current channel is the last channel that is at the bottom of the screen Nothing happens if the bottom channel is currently selected Example Display the Cross Modulation measurement for channel 3 Step Mouse g Scroll Bar The Cross Modulation column is visible Click on the Horizontal Scroll Bar box with the left mouse button Hold down the left mouse button and drag the cursor until it is all the way to the right side of the Horizon Keyboard Place the cursor on the spreadsheet Press the right arrow key until the Cross Modulation column is visible 2 Click on the Vertical Scroll Bar up arrow Press the down arrow key until your with the left mouse button until channel 4 second channel channel 4 in the example the second channel in the example is is visible The spreadsheet looks similar to visible The spreadsheet looks similar to Figure 2 6 The Cross Modulation cell for the on
44. Sequence at a time so there is no confusion about what measurements and channels are in a Measurement Sequence Now define a simple Measurement Sequence to make Carrier Levels and Frequencies CSO and HUM measurements for your first third and fifth channels 1 Clear the spreadsheet a From the Edit menu choose Select All b From the Edit menu choose Clear Cable TV RF Measurements Software for Windows User Manual 2 25 Basic Tutorial 2 From the Configure menu choose Measurement Sequence The Measure ment Sequence dialog box Figure 2 22 or Figure 2 23 appears Measurement Sequence Auto Selection 24 Hour Test FCC Post Converter FCC Pre Converter FCC Headend Msmts O Carrier Survey and 2nd avg CP OP CT CT PAY ETH d au Aur Aur Be SESE Mod e e Declines Lev Freq N ul ole L R M Figure 2 22 The Measurement Sequence dialog box U S A only 2 26 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Measurement Sequence Auto Selection Edit Time Parameters 24 Hour Test Create 2714 2715 UDP Cancel Clear Sequence Help O Carrier Survey Vis Vis Aur Aur 2nd 2nd H Be Car Car Car Car Aur AR fe y Fats Be Frq Lev Fra Lev Freg P Figure 2 23 The Measurement Sequence dialog box non U S A 3 Select the Carrier Levels and Frequencies CSO and HUM for your first third and fifth channels Double click those
45. Table format as follows m Select all of the data that was just pasted in the document m From the Table menu choose Convert Text to Table m If you are using WORD 6 0 select Tabs as the column spacer m If you are using WORD 6 0 choose OK 9 Adjust the column width as necessary NOTE Both Word and Excel have a limited number of columns The limit for Word is 31 columns The limit for Excel is 256 columns Each cell will produce a large number of columns see the example in Table 3 2 above Take this into consideration when copying data into these applications The As Displayed format only copies the displayed cell contents and Channel and Measurement Headers associated with the selected cells to the clipboard The results of copying one cell using the As Displayed format are shown in Table 3 3 Table 3 3 The results of copying one cell using the As Displayed format Carrier to Noise dB 255 25 41 Cable TV RF Measurements Software for Windows User Manual Menu Bar View Clear Select All Clear see Figure 3 14 deletes the current value and or all history for the selected cells There is always a warning to make sure that you really want to delete the contents of the cells Select CANCEL if you do not want results deleted No View Filter is On NOTE The following results for all selected cells will be deleted when you select OK Select Cancel if you do not want results deleted O Measurement His
46. Use the copy that is already open E1023 Error printing spreadsheet An error occurred printing a report Ensure that print options were selected appropriately and that the printer is properly connected to the PC E1024 Invalid channel table name The channel table filename specified is not valid E1025 Attempted write to read only file The Channel Table file is write protected Select a different save file name Cable TV RF Measurements Software for Windows User Manual B 5 Appendix B Error Warning and Informational Messages Table B 1 Error Messages Cont Error Number Error Message Explanation E1026 Table Info was incomplete in the selected A Channel Table file must have table information for at least one channel file The file may be corrupt E1027 Selected file has too many channels The Channel Table file has more channels than the application can handle Truncated All possible channels were loaded E1028 Error initializing CTLOADE One or more executable files have become corrupted Try reloading the application from the master disk E1029 Select at least one item or press CAN This dialog requires a selection CEL E1030 Selected table name is too long or A Channel Table being read into the application from an instrument has a contains incompatible characters name which cannot be converted into a DOS compatible file name E1031 No channel tables found in instrument For Transfer Delete operation the
47. a correct value Aural carrier frequency Alarm Caution Good Caution Alarm Upper amp lower limits 5 3 3 5 kHz Carrier to noise Alarm Caution Good Only lower limits 43 45 dB ICR Good Caution Alarm Only upper limits 15 2 dB Figure 3 41 How the upper and lower limits work The command buttons in the Edit Limits File dialog box are m Open Limits File The Open Limits File command button allows you to select a different Limits File to edit The name of the Limits file that you are currently editing is in the Title Bar for the Edit Limits dialog box m Save As Limits File The Save As Limits File command button saves any changes made to the current limits file the one whose name is in the Title Bar Do not forget that any changes made to this Limits file are reflected in every worksheet that uses that Limits file m Get Defaults The Get Defaults will place all of the default values into the Edit Limits dialog box m Save As Defaults see Figure 3 42 This command button takes all of the current values in the Limits file and saves them to a new Limits file which is then used as the default Limits file The default Limits file values are loaded into the current Limits file using the Get Defaults command button It also is used as the Limits file for all channels whenever a new worksheet is defined or you start making measurements without defining any worksheet This new Limits file can have
48. a new Worksheet effect until you create a new worksheet W360 No channels found which match the This would occur if the Channel Table included all analog channels and you specified Carrier Level Difference selected the Digital Channels Only from the Parameters dialog box It Parameters affects the Max Min and Max Min values which would be displayed as blanks W361 No channels found which match the This would occur if either no adjacent channels fell within the specified specified Adjacent Channel Difference adjacent channel window or if there weren t two channels within the range Parameters which were of the specified channel type The results will be displayed as blanks W362 If you edit your worksheet channel table When making most changes to the worksheet channel table it is necessary changes will not take effect until you to create a new worksheet to have those changes take effect create a new worksheet Cable TV RF Measurements Software for Windows User Manual B 9 Appendix B Error Warning and Informational Messages Table B 2 Warning Messages Cont Warning Number Warning Message Explanation W363 Carrier levels have been selected on all Your measurement selection includes carrier levels on all channels You can channels Run Survey instead run a Survey substantially faster Possible drawbacks are that all results have the same date time stamp and the spreadsheetis not updated until the Survey completes Select Yes
49. a relative Rel frequency location that lies within a frequency range determined by the CTB Measurement Setup are designated as CTB results Results measured at a relative frequency location outside this frequency range are designated as CSO results The frequency range is determined from the current software CTB Measurement Setup for the channel as follows CTB Result Range OMHz Max CTB Test Location Search Ambigu ity where Max CTB Test Location The maximum absolute value of all the CTB relative test locations as defined in the software CTB Measurement Setup for the result channel Search Ambiguity The maximum frequency range over which the 2714 searches for beat maximums relative to the actual given test location This is set to 100 kHz in the 2714 CTB and CSO Measurement Setup Restrictions To make the above scheme consistent CTB and CSO test locations should not be allowed to overlap Therefore the CSO Measurement Setup is restricted as follows The allowed CSO test locations must lie outside the frequency range as defined by the CTB Measurement Setup This frequency range is determined as specified above except that the Search Ambiguity is doubled to 200 kHz see Figure 3 47 This is because in the worst case a CTB signal may be found 100 kHz above the specified test location and a CSO signal may be found 100 kHz below another test location This can overlap the CTB frequency range unless a 200 kHz ambiguity ran
50. and create Channel Tables to load into the instruments This command launches this application or if it is already started this command switches to it For more information on this application please see Appendix C The Help menu see Figure 3 52 allows you to access the help messages and software version number Contents About Figure 3 52 The Help Menu Contents lists all of the available help topics see Figure 3 53 These topics are accessed by scrolling until the desired topic is highlighted and then choosing the OK button or double clicking on the name There are some general topics then all the menus and their associated commands are listed The measurement help files give a brief description of the measurement the files have room for you to add your own notes about the measurements For more details on editing these Help files see page E 3 Cable TV RF Measurements Software for Windows User Manual Menu Bar Help Contents Alarms Cautions and Errors amp Intercepting Messages Cells Will Not Unselect Channel Summary Screens Channel T able Configure Menu Overview Connections Preferences Test ID Measurement Limits Edit Measurement Limits Parameters Measurement Sequence Create 2714 2715 UDP Time Parameters Measurement Setups Channel Setups Figure 3 53 The Help Contents dialog box These same topics are available from the Help command buttons in most dialog boxes Make sure tha
51. carrier You could go through and verify each channel if desired to make sure that the channel numbers match but generally the Use blank channel information as wild cards is the most efficient way to load the data because it will reduce further prompts NOTE If any of the results that you are importing contain results from CSO or CTB measurements you may end up importing more results than listed in the results column because of the way that the software distinguishes results True with older firmware versions of the 2714 Any cell without results data or in error condition will not be imported Cells that have more than one measurement will have all valid data imported and the Error data results left blank Cable TV RF Measurements Software for Windows User Manual Menu Bar Configure Worksheet Info If you are importing results from a channel table that has mismatches in the channel header no destination channel an inactive destination cell or a user requested skip you are warned at the end of the import process as shown in Figure 3 30 2714 2715 SW Message Import complete 0 results imported The following measurements were not imported for the given reason Measurement Carrier Levels and Frequencies All Measurements on channel All Measurements on channel All Measurements on channel All Measurements on channel All Measurements on channel Channel Reason inactive destination cell user r
52. destination cell or a user requested skip will not be imported Cable TV RF Measurements Software for Windows User Manual 2 85 Advanced Measurements Tutorial 13 Choose the Use Channel Results option button to load the channel results and continue the import process If there are no more mismatches the import process is completed when a message box similar to Figure 2 79 appears Make sure that the number of results transferred is similar to that listed in Get Stored Results Count column in Figure 2 74 this is a cross check 2714 2715 SW Message Import complete 128 results imported The following measurements were not imported for the given reason Measurement Channel Reason No errors or warnings detected Figure 2 79 Message box that tells you that the import procedure is finished 2 86 Cable TV RF Measurements Software for Windows User Manual D Overview This section contains several chapters that describe the Cable TV RF Measure ments Software for Windows in detail Three chapters Parts of the Worksheet Control Menu Box and Menu Bar provide in depth descriptions of all the menu commands available in the software The 2715 Spectrum Analyzer with either Option 50 or Option 75 installed is capable of frequencies up to 2 15 GHz Frequencies above 1 8 GHz are not supported by this software Cable TV RF Measurements Software for Windows User Manual 3 1 Overview 3 2 Cable TV RF Measurements Softw
53. eee C 1 How to Start the Channel Table Editor 0 0000000 c cece ee eee C2 Create a New Channel Table 0 0 0 0 ccc ccc ccc cee eens C3 Load a Channel Table into the Test Equipment 0 0 C 9 CAUIETOTIS 5755 ao os hee deste delice d Skee uid E Solange dea lengues EE C 9 Channel Tables Provided 0 0 0 0 cece eee eee eees C 12 OVERVIEW or boos ide RGR ers cee er a e geet Goa E E a le Gudalong sede aran aoe C 14 Button Bar sser edie beh hee crane meet ind epee gel Geese nl Sh tudor pe tuntents ee S ar G C 27 Channel Table Fields 0 0 0 0000 ec cee eee ee eees C 27 ii Cable TV RF Measurements Software for Windows User Manual Table of Contents Appendix D FCC Measurements ccccccccsscsccece Organizing Worksheets and Measurement Results FCC Headend Measurements FCC Field Measurements App ndix E nee cesoie ern a Approximate File Sizes Naming Conventions 0 00 e eee E E User AIS oy mss Bice wage beets bck gore Tact paw pees nile arai a geisha a ada How to Archive a Worksheet The WINGINT Pile eee e ee Sh cad e ae tae ota The 271 X_SW INI File gee tatan eevee pede ea peta Appendix F Controlling a 2714 2715 Over a Modem Terminal Program Settings Local Modem Settings 0 0 2 a eee a eee eee Remote Modem Settings 0 0 cee eee eee eee 2TIX Settings ies Slee a weet de 8 a Sys ead ss Sophias Dives a ae tassels Glos
54. first to get into Insert mode For the file to have the CHT extension the extension must appear in the name field when you accept the name As test results are exported whenever the channel table name or the site name changes a new measurement data export file may be created You are given the channel table name and the site name on which the data is based and you are asked for the DOS file name to which you want it exported the default extension is WSR You can then type a new name or press the ESC key to skip exporting all data based on this channel table name and site name When channel tables are exported it is possible to have channel tables available for export that have no measurement data associated with them in the DOS based software you can create channel tables without taking any measurements based on them It is also possible to have measurement data available based on channel tables that are not available for export in the DOS based software you can delete channel tables from the databases after measurements based on them have been stored Cable TV RF Measurements Software for Windows User Manual Installation In order for the exported channel tables to be used by the Windows based software no additional action is required they will appear in the list of available channel tables To use the exported data first create a new worksheet based on the same channel table that the data was based on Then do File Import
55. for the UDP title and select OK b The UDP is created and loaded into the 271X c Verify that the selected Channel Table STD_PC CHT exists in the 271X This is not done automatically at UDP generation time it must be explicitly done using the Channel Table Loader see Appendix C d Select OK to return to the Worksheet Define the Pre Converter Use New from the File menu to select the STD CHT Channel Table This will Worksheet result in a new worksheet being created note that the worksheet used to define the FCC Post Converter UDP was only necessary for that task and does not need to be saved Configure the items listed below for the new worksheet to match the system and testing methods New Channel Table m Preferences For example select Pause on New Channel if an external preselector is used This allows for manual tuning of the preselector for each channel m Measurement Limits Limits are not formally part of the generated UDP but are defined here to support importing the measurement results m Measurement Setups Make sure that the required test channels have In Channel Response set to RF measurement method NOTE Define the Site name later from the 271X front panel at each test Site Cable TV RF Measurements Software for Windows User Manual D 7 Appendix D FCC Measurements Define the Pre Converter UDP Define the UDP for Visual Carrier Level and Level Variation 30M Measurements
56. include in transfer channel information C 30 Insert Channel Table Editor C 18 intercepting an alarm 2 50 3 48 L Limit Check Channel Table Editor C 24 limits Button Bar 3 72 command button 2 71 defining 2 71 lower 2 73 3 59 sub directory 3 58 upper 2 73 Visual Carrier Level Difference 2 76 limits file 2 23 2 71 3 57 B 3 E 5 attaching to a channel 2 75 editing 2 75 removing from a channel 2 75 load a channel table C 9 Cable TV RF Measurements Software for Windows User Manual Index 3 Index M Maximize 3 10 button 3 4 Channel Table Editor C 15 Meas Sel 2 18 2 21 Button Bar 3 72 Meas Seq 3 40 3 48 Button Bar 3 72 Measure 3 38 Measurement Execution 3 47 Measurement Header 3 6 Measurement Limits 2 71 3 57 Measurement Sequence 2 69 3 40 3 48 B 3 B 10 Auto Selection 2 31 Carrier Survey 3 50 define and use 2 25 Edit Time Parameters 3 51 FCC Headend Msmts D 3 generate a 2714 UDP 3 52 switching to other applications 2 29 3 40 UDP 2 80 view filter 2 30 Measurement Sequence Results 2 68 3 36 disabled commands 3 37 Measurement Setups 2 41 3 62 Carrier to Noise 2 43 CSO 2 43 CTB 2 43 In Channel Response 2 44 UDP 2 78 Measurement Summary 3 31 from Global View 3 33 Results Detail 3 27 Status Report 3 22 measurements one channel 2 18 simple 2 18 switching to other applications 2 21 Mea
57. measurement You can display the Results Detail display for a selected cell by using the View Results Detail command button or clicking the right mouse button on the desired cell Results Detail is explained on page 3 25 Return to the Status Report dialog box by choosing the Close command button Cable TV RF Measurements Software for Windows User Manual Menu Bar View Violations Channel Table std cht Site Tektronix Beaverton No View Filter is On 2 Visual Carrier Frequency MHz 2 CTB dBc 2 In Channel Response dB 2 Modulation Depth 3 Yisual Carrier Frequency MHz 3 Aural Carrier Level dBc Cer Aural Frequency Offset MHz 3 Carier to Noise dB 3 Cross Modulation dBc 3 ___ In Channel Response dB 3 Hum LFD 2 ____3 Modulation Depth 4 Yisual Carrier Frequency MHz 4 Aural Frequency Offset MHz 4 Carier to Noise dB Figure 3 17 View Violations dialog box Results Detail The Results Detail dialog box see Figure 3 18 displays more information about a measurement than can be contained in a cell on the spreadsheet For example the CSO measurement only gives the worst CSO on the spreadsheet The Results Detail display lists all the measurements under this group along with the numerical results You can also view the history of the measurement by using the Next and Previous command buttons Cable TV RF Measurements Software for Windows Use
58. not be reflected on the 271X display This does not make a difference since the units convert to the desired value when the results load into the software worksheet Cable TV RF Measurements Software for Windows User Manual Menu Bar Be careful when defining a Measurement Sequence for a UDP Remember that all header and preference information must be correct before the UDP is loaded into the 271 X The information sent includes Channel Table Measurement Execution preferences Pause on New Channel and Prompt for Signal Connec tion Start Day and Time Repeat Interval repeat count Run N Times Power Level Units and Test ID operator field in the 271X but not editable at the 271X See Table 3 7 for a complete list of what is loaded into the 271X when a UDP is created Table 3 7 UDP Information loaded into the 271X Parameter Where Edited Title User entered at the Create 2714 2715 UDP prompt Run N Times The Edit Time Parameters from the Measurement Repeat Interval Start Day Start Hour Start Time Sequence dialog box Configure menu Prompt for Signal Connection Pause on New Channel Channel Table From Preferences in the Configure menu From Preferences in the Configure menu From the Worksheet Info dialog box Configure menu Test ID From Test ID Configure menu Reference Level Units Measurement Setups for the individual channels Power Line Frequency From Preferences Con
59. not need to use Cable TV RF Measurement Software They must be put into separate directories The only thing that the software can and should share is the channel table files If you want the two applications to share channel table files move them out of the application directories and into a separate directory Then the applications can share the same files without confusion How to Archive a Worksheet There are times when you want to save a worksheet someplace other than where you have been working with it either for archiving purposes or to send the results or setups to someone else For example a MSO Multiple System Operator may want to define particular Limits files and Measurement Sequences for the individual operators to use There could be one worksheet for the Pre converter Measurements the Post con verter measurement and another for 24 Hour Variation These could be the master worksheets so that the individual operators don t have to waste time creating them Also when the results return to the MSO the data will drop right into their worksheet for evaluation Cable TV RF Measurements Software for Windows User Manual Appendix E Files Which Files to Save The WIN INI File The 271X_SW INI File The following files are required to properly save and then completely reconstruct a worksheet The Worksheet File It should end in wrk It is the name in the Worksheet entry in the Worksheet Header The
60. of shipment whichever is earlier If this software product does not conform as warranted Tektronix will provide remedial services as described in the documentation provided with the product Tektronix does not warrant that the functions contained in this software product will meet Customer s requirements or that operation of the programs will be uninterrupted or error free or that all errors will be corrected In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for such service in accordance with the instructions received from Tektronix If Tektronix is unable within a reasonable time after receipt of such notice to provide remedial services Customer may terminate the license for this software product and return this software product and any associated materials to Tektronix for credit or refund This warranty shall not apply to any software product that has been modified or altered by Customer Tektronix shall not be obligated to furnish service under this warranty with respect to any software product a that is used in an operating environment other than that specified or in a manner inconsistent with the User s Manual and documentation or b when the software product has been integrated with other software if the result of such integration increases the time or difficulty of analyzing or servicing the software product or the proble
61. of the changes and leave the Measurement Setups dialog box and return Setups Dialog Box to the spreadsheet by choosing the OK command button Attach a Different Channel Table NOTE Editing an existing Channel Table has many consequences The biggest is the software only recognizes a Channel Table by its name not its contents The software will not load a Channel Table into an instrument if it already has a Channel Table by that name There will always be at least a default Channel Table associated with a work sheet so you can make measurements without changing the Channel Table If the default Channel Table is corrupt or not available the system will always try to load the STD CHT Channel Table Please see Appendix C or the on line help for more information about the Channel Table Editor CTLOADE EXE This section only deals with changing from one existing Channel Table to another 1 Choose Worksheet Info from the Configure menu The Worksheet Info dialog box similar to Figure 2 37 appears 2 Select a Channel Table file from the list 3 Choose OK to save the changes and exit the dialog box The warning in Figure 2 38 may appear if there are measurements in the current worksheet This is to remind you that you are creating a new worksheet whenever you change the Channel Table Only one Channel Table is allowed in each worksheet 4 Choose the Yes command button to save the old worksheet The new worksheet with the n
62. results should end in wsr Table E 2 gives the general conventions Table E 2 Software file types and their naming conventions Type of File Naming Conventions Worksheet wrk Exported Results File wsr Limits File lim Channel Table File cht There are a few things that you can use to make using the software quicker and easier for your application You can have the software start with a worksheet already loaded This is ideal if you like to start each session with a new worksheet to keep the measurements separate The problem is that many of your channels have special Limits files assigned to them and different Measurement Setups You do not want to take the time to remember which ones they are and set them Make a template worksheet that defines all these things and then automatically load it every time the software runs Do this from the Windows Run line or using the icons First create the template wrk worksheet From Run Line 1 Choose Run from the File menu in the Windows Program Manager 2 Type 271X_SW EXE template wrk in the text box where template wrk is the name of the worksheet that you want to load From Windows Icon 1 From the Windows Program Manager select the software icon 2 Choose Properties from the File menu Cable TV RF Measurements Software for Windows User Manual Appendix E Files 3 On the Command Line after 271X_SW EXE type template wrk
63. test Site for measurement execution and results collection Remember to load the correct Channel Tables into the 271X The 271X can typically store a full day of test results However it is best to remove all currently stored measurement results before executing the UDP at the first test Site See the 271X manual for more information on its measurement storage capacity Also you can create more on board storage capacity by removing additional items such as stored settings and waveforms unused Channel Tables and so forth from the 271X NVRAM See the 271X User Manual for specifics on these operations 1 At each test Site first enter the Site name into the 271X using the 271X front panel keys see the 271X User Manual for more information This allows tagging each measurement result with the correct measurement Site Use these Site name tags to encapsulate measurement results by individual Sites For this example we are collecting results at only 2 test Sites TP132 and TP146 The FCC requires a minimum of 6 test Sites for explanation purposes we are only using two Enter Site name TP132 before starting any UDPs at the first Site and TP146 at the second Site 2 After entering the Site name execute each UDP by selecting the UDP name in the 271X USER DEF menu The 271X will sequence through the measurements and store the results The UDP automatically stores all measurement results in the 271X NVRAM Depending on the chosen
64. the Com Port set with the Connections from the Preferences menu Based on the conditions selected the following information is sent Site Name Measurement Column Heading Channel Number Tag Program Condition Type alarm caution or error and Date Time This information is tab delimited and packetized ASCII text Each Violation Report is one packet and each packet consists of m A one byte Byte Count that gives the number of bytes in the Violation Report this includes the Checksum m The Violation Report in ASCII text m A one byte Checksum simple addition including the Byte Count An additional reporting option is to broadcast a message to all active Windows applications that have registered to intercept this message This function allows you to perform additional processing when an alarm occurs To receive these messages your Windows application must execute the following line of code nAlarmMsg RegisterWindowMessage WM POST ALARM MESSAGE The variable nAlarmMsg represents the unique Windows message number To intercept it simply test for nAlarmMsg in the main messaging loop The severity of the nonstandard condition is indicated by msg lParam Caution 1 Alarm 2 and Error 3 For example MSG msg while getMessage amp msg NULL 0 0 if msg message nAlarmMsg if msg 1Param 1 MessageBox NULL Got Caution Message NULL MB OK else if msg 1Param 2 MessageBox NULL Got Alarm Message
65. the amount of time set in the Connections dialog box see pages C 26 and C 27 m GVG Switcher Control For a GVG switcher a typical command string looks like 020094 Cable TV RF Measurements Software for Windows User Manual C 31 Appendix C Channel Table Editor 02 is control B telling the switcher to switch It must be 02 00 is the address of the switcher It is always 2 bytes 9 is the video switch It is always one byte 4 is the audio switch It is always one byte Pesa Switcher Control When sending controls to a Pesa remember that you are emulating a terminal and that you are working blind Because the Pesa switcher uses a hierarchical menu scheme the typical Pesa string is more complex For a Pesa switcher the typical string looks like 2TN 2TN 27N 27N 27N 27N 2TN 27N 2TN 27N 27N 27 Y 13B 133 134 13 27N is Escape and No The long string of 27N is to guarantee that you are at the top of the menu hierarchy before you begin to give commands When writing your own strings it is strongly recommended that you use at least 15 of these to avoid problems 27Y tells the switcher that you are ready to start NOTE Although it is not shown here a user name and password could be entered here because you are at the initial login screen This is not always necessary it depends on how your particular switcher is set up C 32 13 is an ASCII return B is the command for switch 13 is an ASCII return to acc
66. the instrument if it is not already active Select the channel by selecting a cell from the desired channel before choosing Tune to Channel It will report an error if the channel cannot be tuned Use this menu item see Figure 3 28 to retrieve all the CATV measurement results currently stored in the NVRAM of the connected 2714 or 2715 The Notes field is not as complete as if it was done directly from the software application The results are not erased from the 271X memory after they are retrieved Results can only be erased using specific 271X front panel keystrokes Cable TV RF Measurements Software for Windows User Manual Menu Bar Get 2714 2715 Stored Results Chan Table Count Results File WWW a 238 Figure 3 28 The Get Stored Results dialog box Since results from the 271X can come from multiple channel tables and sites the measurement results are grouped according to site and channel table name Ordering within the directory is alphabetical by site name Count is the actual number of measurement results contained in the group specified by the Site and Chan Table columns Results File is the name of the results file to which a particular group of results has been exported Use the Export Results command button to export the results from the instru ment into a results file wsr Use the Import Results command button to bring the results file into the software worksheet When the export is complete there will be
67. the second aural carriers This value must be at least 200 kHz above the first aural carrier and below the channel edge Only used by the 2715 and firmware version 1 12 94 and later of the 2714 RFM150 Second Aural The nominal difference between the visual and aural carriers This is the second channel aural offset Only used by the RFM 150 4 The Cable TV RF Measurements software does not support channel frequencies higher than 1 8 GHz Cable TV RF Measurements Software for Windows User Manual C 29 Appendix C Channel Table Editor C 30 Scramble Whether or not this channel is scrambled RFM150 C N Carrier to Noise Bandwidth This is the bandwidth used to compute the Carrier to Noise calculations Only used by the RFM 150 Amplitude Offset The offset applied to the Visual Carrier Level readings on this channel Dwell Time The amount of time that should be spent gathering data Video format determines the dwell time Use White Selects whether the white line or the whole field should be used in the amplitude measurements White Line The location of the white line Use Quiet If Use Quiet is NO then the instrument will auto search for unmodu lated lines on which to make Carrier to Noise and CSO measurements If Use Quiet is YES then the instrument will use the line number supplied in the Quiet Line field 2715 only Quiet Line Selects the quiet line in the video signal used for making the Carrier to Noise and CS
68. to add delete or change information in a Channel Table See Appendix C for more information on the Channel Table Editor Open Opens a previously existing worksheet making it active See Figure 3 6 3 12 Cable TV RF Measurements Software for Windows User Manual Menu Bar File Name Directories wrk c 271x_sw example wrk remove wrk try wrk c tek_159438 E Figure 3 6 The Open dialog box Save Save saves all changes made to the present worksheet Save As Save As saves the present worksheet under a new name The worksheet name has the same naming restrictions as any other MS DOS file no more than 8 characters some names such as LPT1 and GPIB are not allowed and so forth Some additional names will cause problems such as names used by the GPIB See Figure 3 7 for an example of the dialog box Notice that already existing worksheet names are in gray File Name Directories wrk c 271x_sw Sen Cancel gt 271x_sw help G limits Drives c tek_159438 Figure 3 7 The Save As dialog box There are additional restrictions on worksheet names You cannot use any name that is also used by IBCONF IBCONF is the configuration program used by the GPIB card For example if you have a GPIB device named 2715 you cannot have a worksheet called 2715 wrk This will cause an error Cable TV RF Measurements Software for Windows User Manual 3 13 Menu Bar
69. to run the Survey or No to run individual carrier level measurements on each channel w1100 Channel Table changed Do you wish to Answer YES if the current Channel Table is to be saved to a file save it w1101 Multiple channel widths are incompatible The channel table contains more than one channel width 2714 and 2715 with SOME 2714 2715s first difference at record nnn instruments with firmware versions 09 30 94 or earlier will not accept a channel table with multiple channel widths See error 1080 on page B 8 Informational Messages Informational messages tell you when something has changed for example when a file import has been completed Table B 3 Informational Messages Message Instrument connections have been changed Import complete XX results imported The following measurements were not imported for the given reason There are no measurements for the selected view There are no more measurements for the selected view Removing View Filter Explanation The connection information of the equipment has been changed in the Channel Table Editor This message appears at the end of an import If a measurement was not imported a reason is given For most of these cases mismatches are flagged during the import process and you are allowed to overwrite the mismatch However if the channel number does not match itis skipped and you are not flagged except for this message The View filter must have some vali
70. worksheet to use this channel table If an existing channel table must be edited and saved to the same name perform the following steps Cable TV RF Measurements Software for Windows User Manual C 11 Appendix C Channel Table Editor Out of Bounds Limits Independent Operation Updating Channel Table Names C 12 1 Start with the channel table as the current one in the worksheet Its name is in the Worksheet Header 2 Choose Worksheet Info from the Configure menu The current channel table is already selected in the Channel Table Group combination box 3 Choose the Create Edit Channel Table command button to start the Channel Table Editor 4 The current table is in the editing buffer of the Channel Table Editor Edit the table as required and then save the channel table using the same name 5 Ifa channel table using the same name currently exists in the instrument delete it 6 Use To from the Transfer menu to transfer the edited channel table to the test equipment 7 Exit the Channel Table Editor and return to the software Worksheet Info dialog box 8 Choose the Cancel button to return to the software worksheet 9 Choose New from the file menu to create a new worksheet to use the edited channel table The channel table fields have limits If these limits are exceeded you will be able to open the channel table but will be given a warning that there is a problem with the file Use the Limits
71. 0 Aural Carrier Level dBc Max Min Aural Frequency Offset MHz Max Dev BISSETT Carrier to Noise dB Min Ba CSO dBc Max CTB dBc Max Cross Modulation dBc Max In Channel Response dB Max Hum LFD Max Modulation Depth Max Min Aural Deviation kHz Max Figure 3 16 The Status Report The Status Report lists the extremes for all of the measurement results It is basically a summary of all measurement summaries see page 3 32 Table 3 4 lists the measurement results given in the Status Report If there are no results for a measurement it is skipped in the Status Report Limit the channel and measurements in the Status Report by using the view filters see page 3 34 Optionally you can include the measurement history Table 3 4 The Measurement Summaries in the status report Measurement Max Min Visual Carrier Level dBmV or dBuV 1 X X Visual Carrier Level Diff dB 2 Variation dB 3 X Visual Carrier Level Adj dB 4 x 3 22 Cable TV RF Measurements Software for Windows User Manual Menu Bar Table 3 4 The Measurement Summaries in the status report Cont Max Measurement Abs Visual Carrier Frequency MHz X Aural Carrier Level dBc X X iar er X 2nd Aural Carrier Level dBc X X a ia 2nd Aural Frequency Offset MHz a Aural Frequency Offset MHz Average Power dBmvV or dBuV X X Carrier to Noise dB X Desired to Undesired dB X ar CSO dBc x o a
72. 1045 Channel Table name too long for XX YY The Channel Table name is too long for the specified instrument Select a characters max shorter save file name and retry E1046 Incompatible video standard for XX The Video Standard for the stated channel is incompatible with the stated instrument E1047 Incompatible channel width for XX Enter The Channel Width for the stated channel is incompatible with the stated a number between XX and YY instrument E1048 Incompatible aural offset for XX Entera The Aural Offset for the stated channel is incompatible with the stated number between XX and YY instrument E1049 Incompatible channel number for XX The Channel Number for the stated channel is incompatible with the stated record YY Enter a number between XX instrument and YY B 6 Cable TV RF Measurements Software for Windows User Manual Appendix B Error Warning and Informational Messages Table B 1 Error Messages Cont Error Number Error Message Explanation E1050 Incompatible visual frequency for XX The Visual Carrier Frequency for the stated channel is incompatible with the record YY Enter a number between XX stated instrument and YY E1051 Incompatible lower channel edge for XX The lower channel edge for the stated channel is incompatible with the record YY Enter a number between XX stated instrument The lower channel edge is calculated by adding the and YY Channel Edge parameter with the Visu
73. 2 49 The measurements are in the same order as they are in the spreadsheet with the addition of the Visual Carrier 2 56 Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Level Difference and Adjacent results The worst case is listed for each measurement Channel Table std cht View Results Detail Site Tektronix Beaverton No View Filter is On O Include History Measurement Summary Channel Measurement Result 4 Visual Carrier Level dBm Max 46 Min 9 3 42 Visual Carrier Level Diff dB MaxMin SS 23 Visual Carrier Level Adj dB Max 301 2 Visual Carrier Frequency MHz Max Dev RIZE 3 Aural Carrier Level dBc Max 15 6 z Min E 4 Aural Frequency Offset MHz Max Dev IPSS 4 Carrier to Noise dB Min Max Max Max Max Max Max Min Max Figure 2 49 The Status Report 3 Choose the View Violations display command button to see all of the measurement results that are either in caution or alarm See Figure 2 50 The violations are first sorted by alarms and cautions Alarms first then by channel number same order as the spreadsheet and finally by the measure ments In the View Violations dialog box shown in Figure 2 50 all of the measurement alarms for channel 2 are first then channel 3 etc From the View Violations dialog box you can go to the Results Detail display Cable TV RF Measurements Software for Windows User Manual
74. 4 2715 from the Measure menu These commands are disabled because the results are not immediately viewable You can switch to any other view filter by choosing it from the View menu Test ID Results This view filter only displays cells that have measurements tagged with the currently displayed Test ID Therefore if only a few of the measurements on the current worksheet were made under the current Test ID then only those few measurements are displayed If no measurements on the worksheet were made under the current Test ID then the software displays a warning message that there are no measurements with that Test ID and will not allow the Test ID filter to be turned on This is the same warning message as Measurement Sequence Results Select the Test ID using the Configure menu see page 3 45 Cable TV RF Measurements Software for Windows User Manual 3 37 Menu Bar Row Header Fields Measure 3 38 If the Test ID Results view filter is on then the View Filter Status Box contains the message View Test ID View Filter is On and there is also a check mark in front of Test ID Results in the View menu To turn the Test ID View Filter off choose Test ID Results from the View Menu again or choose another view filter If the Test ID Results view filter is on and you are trying to import results that would enter a hidden row or column you are warned that all of your imported results are not immediately viewable You can change which
75. 5 remove some of the measurements 2714 2715 from the Measurement Sequence and then reload the UDP E235 Gated setup option not available with Gated Carrier to Noise and CSO measurements can only be made on the 2714 Use Auto instead 2715 Enter Yes to run in Auto mode instead E236 Gated setup option not available with Gated In Channel Response measurements can only be made on the 2715 2714 Turn gated off Enter Yes to run without Gated mode e37 Reserve B 2 Cable TV RF Measurements Software for Windows User Manual Appendix B Error Warning and Informational Messages Table B 1 Error Messages Cont Error Number Error Message E239 The following problems were found in the Measurement Sequence The Gated setup option is not supported by 2714s C N CSO and ICR will be run in the non gated mode Digital measurements are not supported by the attached 2714 2715 All digital tests Avg Pwr D U and ACL will be skipped See the Create 2714 2715 UDP help topic for additional details Explanation When creating a 2714 UDP one or more Carrier to Noise CSO or In Channel Response measurements specified Gated measurement setups Since this is not supported by the 2714 the setup was changed to run without the gated option One or more Average Power Desired to Undesired or Adjacent Channel Leakage measurements were requested These digital tests are not Supported by 2714s and are not supported by 2715s with Firmware Version 09
76. 53 gives a complete list of information loaded by a UDP It is important to check the following dialog boxes to make sure that they describe the way that you want the UDP to operate m Worksheet Info from the Configure menu the Channel Table m Test ID m Measurement Setups from the Configure menu m Preferences from the Configure menu m Edit Time Parameters from the Measurement Sequence dialog box A good example of a typical UDP is a 24 Hour Test with a few extra measure ments specific to your application Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Define a UDP The following procedures describe how to define a UDP Define a Worksheet Channel Table and Test ID 1 2 10 11 Worksheet remote wrk Site Chan Table std cht Test ID Starting with a new Worksheet choose New from the File menu In the Description group type This worksheet is only for practicing writing and retrieving data from UDPs Select the std cht from Channel Table from the list box Select lt undefined gt from the Site combination box There is no need to define the Site that information is not transferred to the 271X Choose the OK command button to save the changes and return to the spreadsheet From the File menu choose Save As Enter the new worksheet name remote wrk Choose the OK command button to save the worksheet and return to the spreadsheet F
77. 6 Figure C 15 The Save As dialog box ccccccecscceces C 16 Figure C 16 The Print dialog box 0 cece ccc e ce eeeees C 17 Figure C 17 The Print Setup dialog box ceeeeees C 17 Figure C 18 The Edit Menu cc ccc cccc ccc ccecesens C 18 Figure C 19 The Copy Fields to End dialog box C 18 Figure C 20 The Edit Table Information dialog box C 19 Figure C 21 The View Channel Table Fields dialog box C 20 Figure C 22 The Transfer Menu ccccccecsscscceces C 21 Figure C 23 The To dialog Dox cece cece eee e ce eeeees C 22 Figure C 24 The From dialog box ccccececcccscceces C 22 Figure C 25 The From Select Table dialog box C 23 Figure C 26 The Delete dialog box 0 cc cce cc ecsceeces C 23 Figure C 27 The Delete Select Table dialog box C 24 Figure C 28 The Select dialog box cece ccc e ce ceeces C 24 Figure C 29 The Limit Check dialog box ceeeeeee C 25 Figure C 30 Warning message that multiple channel widths are incompatible with some 2714 and 2715 instruments C 25 Figure C 31 Limit Check passed message eeeeeeeee C 25 Figure C 32 The Connections dialog box 0eeeeee C 26 Figure C 33 The Channel Table Editor About dialog box C 27 Figure C 34 The Global View from the software application C 30 Figure D 1
78. 71X_SW INI File Explanation ICR Gated 0 0 not gated 1 gated ICR RF Locl 500000 ICR RF Loc2 500000 ICR RF Loc3 le 006 ICR RF Loc4 2e 006 ICR RF Loc5 3e 006 ICR RF Loc6 3 58e 006 ICR BB Locl Reserved ICR BB Loc2 Reserved ICR BB Loc3 Reserved ICR BB Loc4 Reserved ICR BB Loc5 Reserved ICR BB Loc Reserved ICR BB Loc7 Reserved Acl Mode 2 0 Upper 1 Lower 2 Both Modulation Depth Mode Reserved Must be 0 VM700A Source Reserved NTSC Multiburst Line Reserved NTSC Multiburst Field Reserved NTSC Composite Line Reserved NTSC Composite Field Reserved NTSC Combination Line Reserved NTSC Combination Field Reserved NTSC Noise Line Reserved NTSC Noise Field Reserved NTSC Color Bars Line Reserved NTSC Color Bars Field Reserved PAL Luminance Bar Start Line Reserved PAL Luminance Bar Start Center Reserved PAL Luminance Bar Width Center Reserved PAL Luminance Bar Reference Center Reserved PAL 2T Sine Squared Pulse Line Reserved Cable TV RF Measurements Software for Windows User Manual Appendix E Files Table E 4 The 271X_SW INI File Cont 271X_SW INI File Explanation PAL 2T Sine S quared Pulse Center Reserved PAL 5 Riser Luminance Staircase Line Reserved PAL 5 Riser Luminance Staircase Center Reserved PAL 5 Riser Modulated Staircase Line Reserved PAL 5 Riser Modulated Staircase Center Reserved PAL Modulated 3 Step Line Reserved PAL Quiet Line Rese
79. B Error Warning and Informational Messages The tables in this appendix explain the various types of messages you may encounter when using the Cable TV Software In the following tables the term XX represents information that is dependent on the situation In practice XX is replaced by an instrument name filename or number as appropriate Error Messages Error messages tell you when the software was unable to complete a required task These messages occur because of equipment malfunctions corrupted files or missing information that you must supply before the software can continue Table B 1 Error Messages Error Number Error Message Explanation E61 No GPIBO Board Found GPIB is notinstalled or the name of the GPIB board is not GPIBO E62 GPIB is not System Control GPIB card is not configured for System Controller E63 GPIB Write Error A device on the GPIB is preventing data transfer Check all instruments E64 GPIB Read Error A device on the GPIB is preventing data transfer Check all instruments E65 No Listener on Bus No GPIB devices are connected to the controller or they are all turned off E66 GPIB Timeout device not responding Device too slow in responding to command Instrument may need to be initialized E67 GPIB DOS Error GPIB DLL not found or incorrect version E68 GPIB General Failure Problem with GPIB driver Refer to National Instrument s GPIB manual for troubleshooting and possible reinstal
80. C 2 installation 1 3 Current Selection 2 18 2 21 3 39 cursor 3 7 customer support xiii D defining limits 2 71 Delete Channel Table Editor C 18 C 23 Demodulator 271X_SW INI E 10 Description 3 12 Worksheet Info 3 45 Desired to Undesired Glossary 1 display the picture 2 34 Dwell Time channel information C 29 E Edit 3 18 Channel Table Editor C 17 Edit Limits File Measurement Limits 3 58 Edit Setups Measurement Setups 3 63 Edit Table Info Channel Table Editor C 3 C 18 C 27 Edit Time Parameters 3 51 Measurement Sequence 3 51 UDP 2 78 EMFP channel tables C 12 error 3 24 Get 2714 Stored Results 3 42 import 3 14 messages B 1 Results Detail 3 27 event number 3 27 Excel 2 61 2 62 limitations 3 20 Exit 3 18 Channel Table Editor C 15 Expand Columns 2 36 printing 3 16 Export 2 64 3 15 B4 history 3 15 Export Format Copy 3 19 Export Results Get 2714 Stored Results 3 41 Get 2714 2715 Stored Results 2 82 External Attenuation Amplification 2714 measurement setups 3 63 Index 2 Cable TV RF Measurements Software for Windows User Manual Index F FCC 24 Hour Test 3 49 FCC field measurements D 5 collecting and presenting measurement results D 10 defining D 5 execute UDPs D 10 post converter UDP D 6 pre converter UDP D 8 pre converter worksheet D 7 visual carrier level amp level variation 30M UDPs D 8 FCC Headend Msmts
81. Channels Available Channels 2 gi gt Figure 3 23 The Measurements and Channels dialog box The View Filter Status Box displays the following message when this filter is on View Selected Filter is On The spreadsheet looks like Figure 3 24 when the Measurement and Channel View Filter is selected as shown in Figure 3 23 Tektronix Cable TY RF Measurements Software File Edit View Measure Configure Execute Help Worksheet lt untitled gt Site Tektronix Beaverton View Selected Filter is 0 Chan Table std cht Test ID Documentation ge eect pees ee Visual Visual Aural Aural 2nd Aural 2nd Aural g Carrier Carrier Carrier Frequency Carrier Frequency D Lev dBm Freq MHz Lev dBc Offset MHz Lev dBc Offset MHz B 59 8 8 4 6 8 67 258121 67 25 5 5 77 25 Figure 3 24 Worksheet with the Measurements and Channel View Filter on Cable TV RF Measurements Software for Windows User Manual 3 35 Menu Bar Measurement Sequence 3 36 Results To turn this View Filter off select the Measurements and Channels command from the View menu NOTE You cannot select a measurement or channel unless it is viewable Therefore if only some channels and measurements are in view and the Select All command from the Edit menu is used the hidden measurement cells are not selected The exception to this rule is the Carrier Level and Frequency measurement If you select one of the six measurements
82. Check from the Transfer menu to find the problems and correct them The Channel Table Editor is an application that you can use independent of the software However do not do any Channel Table Loader operations while measurements are taking place using the software Do not change or load a channel table while an instrument is using the table If you enter the Channel Table Editor from the software via the Create Edit Channel Table command button and you make a new channel table the channel table list is not immediately updated in the Worksheet Info dialog box when you return to the software You must close the dialog box and reopen it again before the new channel table appears in the list The software will not make changes to the channel table unless you create a new worksheet This prevents you from corrupting data on the current worksheet Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor T Channels The STD Channel Table for the 271X contains T Channels channels below 50 MHz but the std cht does not contain T Channels If you want to make measurements using the T Channels you need to define a new channel table load it into the 271X and make the measurements using the new table NOTE You can use CTLOADE with other Tektronix products but the Cable TV RF Measurement Software supports only the 2714 and 2715 If you are using the Cable TV RF Measurement Software ignore references to pr
83. D 8 Set the Test ID for the worksheet to FCC Pre Converter using the Test ID button on the button bar or Test ID from the Configure menu Select Measurement Sequence from the Configure menu Begin with an empty sequence by selecting the Clear Sequence command button Define the measurements by selecting the FCC Pre Converter button This selection provides an easy method to select the required measurements a Carrier Levels and Frequencies are automatically selected for ALL channels b The FCC Amplitude Characteristic measurement is selected for all the test channels in the Selected Channels list box Since we are setting up a UDP In Channel Response is selected for each selected channel Select the specific test channels in the Select Channels group using the Select button These are the system specific test channels chosen to comply with the FCC regulations on number of test channels based on system frequency limit Choose the OK button when the selected test channel list is correct The Measurement Sequence dialog box now displays the selected FCC Pre Con verter measurements Define the Measurement Sequence execution time parameters by selecting the Edit Time Parameters command button Set to run immediately 1 time Select OK to return to the Measurement Sequence dialog Create a 2714 2715 UDP from the current Worksheet and Measurement Sequence setup using the Create 2714 2715 UDP button a Enter FCC Pre Conv
84. D and STD_PC CHT for this example Use Export button to save each group of results into separate results files as shown in Table D 1 for later importing into the worksheet or other tools such as MS Excel and MS Word Export the results groups as follows Table D 1 How the results are exported from the 271X Site Channel Table Results File TP132 STD TP132 WSR1 TP 132 STD_PC TP132_PC WSR2 TP146 STD TP146 WSR3 TP146 STD_PC TP145 PC WSR4 1 2 3 Cable TV RF Measurements Software for Windows User Manual FCC Pre Converter and Visual Level Var 30M results for TP132 FCC Post Converter results for TP132 FCC Pre Converter and Visual Level Var 30M results for TP146 FCC Post Converter results fro TP146 a From the directory list box select FCCTESTS JUL95 FIELD b In the File Name box enter the Results File names as shown above for each results group c Note that the Import button can be used to load results into the work sheet after the results have been exported to a results file Import from the File menu can be used the same way m Worksheets always contain results for a single Site and single Channel Table This effectively encapsulates the results into the particular measurements taken at a particular Site D 11 Appendix D FCC Measurements m Grouping of results on a per Site basis implies that results from several Sites must be imported and summarized individually on a Site by Site basis
85. FM150 Aural 2 14 2715 RFM150 Channel Second Second Aural Type MHz 6 000 1 250000 CATY 6 000 1 250000 CATY 6 000 1 250000 CATY 6 000 1 250000 CATY 6 000 1 250000 CATY 6 000 1 250000 CATY 6 000 1 250000 CATY Figure C 4 The Channel Table Editor with data for one channel entered You now know how to edit a channel table but this will take a long time to do one at a time It is easier to take an existing channel table and edit it to conform to your needs Edit an Existing Channel 1 From the File menu choose Open The dialog box shown in Figure C 5 Table appears CTLOADE Warning W1100 E Channel table changed Do you wish to save it Figure C 5 Warning that you have made changes and not saved them 2 Choose the No button you do not need to save the practice work Next the Open dialog box appears See Figure C 6 2 Frequencies above 1 8 GHz are not supported by the Cable TV RF Measurements Software If you modify a channel table so it has channel frequencies higher than 1 8 GHz this software cannot be used with that modified table Cable TV RF Measurements Software for Windows User Manual C 5 C 6 Appendix C Channel Table Editor File Name Directories std cht c 271x_sw irc cht fc japan m cht E gt 271x_sw japan_m cht a umbtest cht C help G limits stdofst cht stndrd cht test1 cht Drives c tek_159438 Figure C 6 The Open dialog box Sele
86. File Limits File Edit Limits File Summary Limits Save As Defaults Lower Upper Lower Upper Caution Caution Alarm Alarm Range Visual Carrier Level Difference dB 6 9 0 40 Adjacent Visual Carrier Level Difference dB 2 3 0 40 Figure 3 39 The Measurement Limits dialog box Clear Limits File The Clear Limits File command button removes the limits file from selected channels The software can still make measurements and save results without a Limits file but there will be no caution alarm or passing flags in the results As soon as a limits file is attached to a channel all of the measure ment results made for that channel are flagged according to that limits file lt Select Limits File This command button attaches the selected limits file in the limits file combination box to the selected channel All results for that channel are flagged according to the new limits file including all history Cable TV RF Measurements Software for Windows User Manual 3 57 Menu Bar Edit Limits File This command button allows you to edit the selected limits file from the limits file list box see Figure 3 40 NOTE Any changes made by editing a limits file affects all worksheets using that limits file not just the current worksheet Edit Limits File ntsc lim Open Limits File Get Defaults Save As Limits File Save As Defaults Caution Caution Lower Upper Limit Limit Vis
87. HT EUR_I CHT README TXT CATV HRC CHT EUR_IL CHT SETUPCSS EXE CATV IRC CHT EXPORTDB EXE STD CHT CATV STD CHT HRC CHT STDOFST CHT CHINA DK CHT INSTALL BAT STNDRD CHT CHIN_DK CHT IRC CHT TBPRO1W DLL CTLOADD DLL J APAN M CHT TBPRO2W DLL CTLOADE EXE J APAN_M CHT TBPRO3W DLL EUR BG CHT MSMT DLL TBPRO5SW DLL EUR I CHT MSMTREAL DLL TEKIO DLL NTSC LIM PAL LIM All the help files are in this sub directory See Appendix E for how to edit these to fit your special requirements Cable TV RF Measurements Software for Windows User Manual Installation Test Equipment NOTE All Channel Table and Limits files provided with the software application are Read Only The following test equipment is required to complete this installation m A 2714 or 2715 Cable TV Spectrum Analyzer If either instrument can be used then 271X is called out If something is instrument specific then one or the other is called out m Ifthe 271X has option 08 installed an RS 232 cable is required The 25 pin RS 232 cable is Tektronix part number 012 1380 00 The 9 pin RS 232 cable is Tektronix part number 012 1379 00 To Install the Equipment GPIB Board 271X 1 4 Use the following procedures to install the equipment The software forces the GPIB board GPIBO to have an address of 30 Install the National GPIB hardware and Software for Windows using the instructions provided in the National manuals with the following settings Table 1 2 GPIB board
88. I file Change the XXX XXX in the line Video Driver XXXXXX to match the title that appears in the Title Bar of your video driver Any other details about the operation of Picture are controlled by your video driver Use ALT TAB to jump between the video driver application and the software This is a View Filter see Figure 3 23 that determines which channels and measurements are on the spreadsheet All View Filters are mutually exclusive There are All and Select options for both measurements and channels The user can select whatever measurements and channels are important to view at the moment without losing any measurements This allows you to configure your spreadsheet to show only what you need to see at the moment and eliminate all extraneous information without deleting anything Cable TV RF Measurements Software for Windows User Manual Menu Bar Measurements and Channels View Measurements Oo All Measurements Selected Measurements Selected Measurements Available Measurements Visual Carrier Level a Visual Carrier Level Visual Carrier Freq Visual Carrier Freq Aural Carrier Level Aural Carrier Level Aural Carrier Freq Aural Carrier Freq 2nd Aural Carrier Level 2nd Aural Carrier Level 2nd Aural Carrier Freq 2nd Aural Carrier Freq Average Power Average Power Carrier to Noise Carrier to Noise Desired to Undesired cso View Channels All Channels Selected Channels Selected
89. Measurements and Channels View Measurements D All Measurements Selected Measurements Selected Measurements Available Measurements Visual Carrier Level Visual Carrier Level Visual Carrier Freq Visual Carrier Freq Aural Carrier Level Aural Carrier Level Aural Carrier Freq Aural Carrier Freq 2nd Aural Carrier Level 2nd Aural Carrier Freq Average Power Carrier to Noise Desired to Undesired cso View Channels All Channels Selected Channels Selected Channels Available Channels Figure 2 59 The Measurements and Channels dialog box 9 Choose the OK command button to save the changes and leave the dialog box The spreadsheet looks similar to the one shown in Figure 2 60 Tektronix Cable TY RF Measurements Software File Edit View Measure Configure Execute Help Worksheet tryl wrk Site Tektronix Beaverton S Chan Table std cht Test ID Learner s Permit View Selected Fiter is On _ Visual Visual Aural Aural Carrier Carrier Carrier Frequency Lev dBm Freq MHz Lev dBc Offset MHz 17 4 61 238363 Figure 2 60 The spreadsheet with the Measurements and Channels View Filter on Cable TV RF Measurements Software for Windows User Manual 2 67 Advanced Measurements Tutorial Measurement Sequence 2 68 Results View Filter NOTE Notice that although the first six measurements are tied together under most circumstances the view filter allows them to be viewed separately
90. Mie Filters neme Sarees Senta ke aes Ne Sh Goat aS GY a Ee Defining Limits 4 34 ee eS OE Oe A A AG ee es The 2714 2715 User Defined Program UDP 0 020 0000s Get Stored Results from the 2714 2715 1 0 0 eee eee Cable TV RF Measurements Software for Windows User Manual xiii xiii xiii xiii 2 1 2 2 2 3 2 5 2 14 2 18 2 25 2 34 2 34 2 36 2 39 2 40 2 41 2 45 2 46 2 52 2 53 2 53 2 54 2 56 2 65 2 71 2 78 2 81 Table of Contents Reference OVERVIEW oeer ereas KARETE RAET See Ae Shea ON Se ESO Bete he is 3 1 Parts of the Worksheet 0 ccc cece cece cece ec ceeccees 3 3 TitlesBates Watt k Bi fen ert ted behest Sak ees Boh a hone ok Sadie 3 3 Minimize Button soscam eaan Seog head dS Seas Bek a Wedd eS a 3 4 Maximize Button seinan sw baie ele epee eb sue ela wld eds Seba bib eo Se eS 3 4 Restore Button f 3 2032 42 hone hae achat rhs teen ae el hon tes O SS 3 4 Worksheet Header sssaaa ceed bo adeeie a sug ela wb eds Bebe bib ee 8 Sle eS 3 4 GhannelHeadet aci 7 4 53 tee a achat ath a ica el hon tesla oe Lethe 3 5 Measurement Header 0 0 00 ccc ec cece eee eee eees 3 6 Vertical Scroll Bata 3 7 E 45e Foie he ana sb euls gt eels Boies 3 6 Horizontal Scroll Bar spanien eaaa a a eas Se ees oid es ce eS 3 6 GUTS OR EEE rors Bd Ls etl le lit catalan the Lhe cet ght steal Td Set E 3 7 Control Menu Box cece cece cece cece cece cee esceeee 3 9 Restore 6 52 55 coc
91. O measurements It must be between 4 and 1023 4 is the lower limit for PAL and 7 is the lower limit for NTSC 2715 only Use ICR The ICR measurement should be made using the specified test line If Use ICR is NO this measurement is skipped If you attempt to make a measure ment on a channel with Use ICR set to NO the instrument will try to execute the measurement but color the results cell blue to indicate that there was a problem with the measurement 2715 only ICR Test Line The location of the ICR test line in the video signal This line number is placed in the Notes Field for the measurement results The test line can be either multiburst or Phillips ghost canceling signal You can change the ICR Test Line from the 2715 front panel and the value will be stored in the instrument channel table 2715 only Video Polarity Polarity of the video signal Sync Polarity Polarity of the sync pulse Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor Test Pulse Offset The frequency offset applied to the test pulses from the 2721A in MHz Used by the 2721A only Offset Frequency Indicates whether the indicated visual carrier frequency is at above or below the nominal visual carrier level Include in Xfer Transfer If this field is marked Yes it is usually yes when using the Cable TV Software then the channel information is transferred to the RF instrument during a channel tab
92. Open Save Insert Delete Copy Fields Edit Table Info View Fields Channel Table Fields C 28 CTLOADE Channel Table Editor Version 2 2 Tektronix Inc Copyright 1993 94 95 Figure C 33 The Channel Table Editor About dialog box Opens an existing channel table Same as Open from the File menu See page C 16 Updates the channel table information Same as Save from the File menu See page C 17 The same as Insert from the Edit menu See page C 19 The same as Delete from the Edit menu See page C 19 The same as Copy Fields to End from the Edit menu See page C 19 This information is the same for every channel of a channel table the Aural Offset Channel Width and the Color System As an example you cannot have both NTSC and PAL channels in one channel table This command button is the same as double clicking on the Table Information list box or choosing Edit Table Info from the Edit menu See page C 19 Same as Channel Table Fields from the View menu See page C 21 Chan Channel Number The commonly known number of this channel Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor Program A 6 character identifier for the channel used for the call letters or abbreviated name for the channel Tag A 3 character designation for the channel such as AA or 2 B This is used by the 2721A It must be uppercase alphanumeri
93. Organization of files for logical record keeping D 2 Cable TV RF Measurements Software for Windows User Manual ix Table of Contents X Cable TV RF Measurements Software for Windows User Manual Table of Contents List of Tables Table 1 1 Table 1 2 Table 1 3 Table 1 4 Table 2 1 Table 3 1 Table 3 2 for Windows Table 3 3 format Table 3 4 Table 3 5 Table 3 6 Table 3 7 Table 3 8 Table 3 9 Table A 1 Table B 1 Table B 2 Table B 3 Table C 1 Table C 2 Table D 1 Table E 1 Table E 2 Table E 3 Table E 4 Table F 1 Table F 2 Table F 3 Table F 4 271X_SW directory c ccc cece cece ccs ccsceecs GPIB board settings ccc ccc cece eee e ce ceecs 271X Option 03 GPIB 20 ccc ec ccc w cece eens 271X Option 08 RS232 2 ccc cece cece eee eee Measurements Taken by Auto Selection buttons Measurements under each measurement header The results of copying one cell with history into Word The results of copying one cell using the As Displayed The Measurement Summaries in the status report Explanation of the notes field ee eee Measurements Run Using Auto Configure buttons UDP Information loaded into the 271X Measurements that require operator input Modes for Unattended UDPs_ 0eee eee Menu Bar menu map ccc eee c cece cece cece Error Messages
94. Response dB Hum LF D Hum LFD Fundamental Hum LFD Second Harmonic Modulation Depth Aural Deviation kHz Cable TV RF Measurements Software for Windows User Manual 3 17 Menu Bar Print Setup Sets up the printer so that it can properly print worksheets and reports See Figure 3 11 This is identical to the standard Windows printer setup Please see the Windows User s Guide or on line Help for more information Printer Default Printer currently PostScript QMS on tolpd byv58s1 servers LPT1 oO Specific Printer PostScript QMS on tolpd byv58s1 servers LPT1 Orientation Paper Portrait Size Letter 8 1 2 x 11 in Figure 3 11 The Print Setup dialog box NOTE Most worksheets and reports are more readable if printed using Land scape orientation Exit Exit closes the software application Edit The Edit menu manipulates the contents of selected cells see Figure 3 12 Copy Ctrl C Clear Del Select All Figure 3 12 The Edit Menu 3 18 Cable TV RF Measurements Software for Windows User Manual Menu Bar Copy Copy copies the contents of the selected cells to the Windows Clipboard The software see Figure 3 13 asks if you want the cells in Export format or As Displayed If you select Export format you may also select Measurement History In Export format not only is the displayed cell data copied to the clipboard but the Results Detail
95. Setups 2 43 3 64 Adjacent Channel Lkg Glossary 1 adjacent limits Visual Carrier Level Difference 2 76 Adjacent Visual Carrier Level Difference 3 61 alarm 2 50 2 57 3 32 3 47 intercepting 3 48 limits 2 73 3 57 amplitude offset channel information C 29 Append Channel Table Editor C 18 archive E 4 attaching a different channel table 2 45 Aural Carrier Offset limits 3 58 Aural Deviation Glossary 1 Aural Offset B 6 channel information C 28 Edit Table Info C 19 Auto Selection 3 49 Average Power Glossary 1 blue 2 23 3 23 3 32 Button Bar 3 72 Channel Table Editor C 27 By Channel Frequency Sort C 19 By Channel Number Sort C 19 By Program Sort C 19 C C N bandwidth channel information C 29 Cable TV Software CSS500 and CSS150 E 4 Carrier Levels and Frequencies Glossary 1 Carrier Survey 2 33 3 39 3 50 UDP 3 39 3 50 Carrier to Noise 2 43 Glossary 1 Auto 2 43 Auto with Pause 2 43 Edit Setups 3 64 Gated 2 43 caution 2 57 3 32 limits 2 73 3 57 cell color blue 2 23 gray 2 23 green 2 23 red 2 23 white 2 23 yellow 2 23 Chan Table 2 5 Channel Edge channel information C 28 Channel Header 3 5 number 3 5 program 3 5 tag 3 5 visual frequency 3 5 Channel Number B 6 channel number channel information C 27 Channel Summary 3 30 from Global View 3 33 Cable TV RF Measurements
96. Software for Windows User Manual Index 1 Index channel table 2 45 3 4 3 12 B 2 B 5 B 9 B 11 automatic loading C 10 clear C 3 create a new C 3 file E 5 get 2714 stored results 3 41 Get 2714 2715 Stored Results 2 84 loading C 11 matching C 9 mismatches C 10 names C 10 C 11 provided C 12 UDP 3 53 Worksheet Info 3 44 Channel Table Editor C 1 TDC 10 using RS 232 C 12 Channel Table Fields View C 20 Channel Width B 6 channel information C 28 Clear 3 21 Clear Limits Edit Limits File 3 60 Clear Limits File Measurement Limits 3 57 Close 3 10 Channel Table Editor C 17 help 3 71 Configure 3 43 Connections 2 40 3 68 Channel Table Editor C 25 Contents Channel Table Editor C 26 Help 3 70 Control Menu Box 3 9 Copy 2 60 3 19 B 4 As Displayed 2 62 3 19 compared to Export 3 15 Export Format 2 60 3 19 Copy Fields to End Channel Table Editor C 8 C 18 C 27 Copy to All Channels Edit Setups 2 44 3 68 Create Edit Channel Table 3 12 3 44 Cross Modulation Glossary 1 CSO 2 43 B 4 E 8 Glossary 1 2714 displaying CTB 2 56 distinguishing between CTB and CSO 3 65 Edit Setups 3 65 Get 2714 Stored Results 3 42 measurement setup restrictions 3 66 CTB 2 43 B 4 E 8 Glossary 1 distinguishing between CTB and CSO 3 65 Edit Setups 3 65 Get 2714 Stored Results 3 42 measurement setup restrictions 3 66 CTLOADE B 5
97. Summary if there are 4 Visual Carrier Level measurements in a 24 hour period regardless of whether or not Include History is selected The Measurement Summary see Figure 3 21 gives the Status Report informa tion for just the selected measurement You can move to other measurements using the Navigation arrows The View Violations command button will go to the View Violations display for only the selected measurement The View Results Detail command button goes to the Results Detail display for the selected channel measurement If the Include History check box is checked then the worst case of the measurement in this worksheet is displayed Otherwise the worst case current measurement results are displayed Cable TV RF Measurements Software for Windows User Manual 3 31 Menu Bar 3 32 Global View gt Measurement Summary for Carrier Levels and Frequencies View Results Detail __ View Violations O Include History Violated Violated Measurement Type Lower Upper Limit Limit Visual Carrier Level dB mY Max 65 9 Min 5 4 MaxMin M Max SIS Il Max el Navigation Channel Table std cht Site Tektronix Beaverton No View Filter is On Max Dev MASSO Max C Min a 99 Aural Frequency Offset MHz Max Dev MESM 4 495 None 2nd Aural Level dBc Max Min None 2nd Aural Frequency Offset MHz Max Dev Figure 3 21 Example of a Measurement Summary This is a condensed view of the st
98. Test ID you are viewing In the Test ID dialog box select one of the Test IDs used in the worksheet and the view filter will automatically switch to that Test ID You can only select from the Used in Worksheet Test IDs You can select what information is displayed in the Channel Header using the Row Header Fields command in the View menu see Figure 3 26 You can display the Channel Number and Tag the Program Name and or the Channel Frequency You must select at least one Initially all three options are always chosen When all three are selected the header column width is slightly larger than if one or two of the options is selected Row Header Fields g Program Name EJ Channel Frequency Figure 3 26 The Row Header Fields dialog box NOTE There is no Program Name for any channel in any Channel Table as shipped from Tektronix Use the Channel Table Editor to add the Program Names as needed The Measure menu see Figure 3 27 includes Current Selection Sequence Tune to Channel and Get Stored Results from 2714 2715 Cable TV RF Measurements Software for Windows User Manual Menu Bar Measure Current Selection Sequence Tune to Channel Get Stored Results from 2714 2715 Figure 3 27 The Measure Menu Current Selection The Current Selection makes the measurements for the selected cells This is true with the exception of the Visual and Aural Carrier Level and Frequency cells Select any of these
99. User Manual Tektronix S Cable TV RF Measurements Software for Windows 070 9611 03 This document applies to software version 1 0 and above Copyright Tektronix Inc All rights reserved Licensed software products are owned by Tektronix or its suppliers and are protected by United States copyright laws and international treaty provisions Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 or subparagraphs c 1 and 2 of the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 as applicable Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Printed in the U S A Tektronix Inc P O Box 1000 Wilsonville OR 97070 1000 TEKTRONIX and TEK are registered trademarks of Tektronix Inc WARRANTY Tektronix warrants that this software product will conform to the specifications in the documentation provided with the product when used properly in the specified operating environment for a period of three 3 months The warranty period begins on the date of shipment except that if the program is installed by Tektronix the warranty period begins on the date of installation or one month after the date
100. Visual Carrier Level Difference is the amount of variation in amplitude between two channels that are next to each other in frequency The adjacent results may be misleading if a view filter is on because channels next to each other in the worksheet are not necessarily next to each other in frequency NOTE If a view filter is on some measurement results can be misleading Take note of the view filter status when interpreting results These parameters are not visible on the worksheet rather they are part of the Status Report Results Detail and Measurement Summary The Get Defaults command button loads the default values into the Summary Limits The Save As Defaults button sets the current values as the defaults The Parameters dialog box sets the maximum distance between carriers for use in the Adjacent Channels calculations See Figure 3 44 Cable TV RF Measurements Software for Windows User Manual 3 61 Menu Bar 3 62 Measurement Setups Parameters Adjacent Channel Window MHz Figure 3 44 The Parameters dialog box There are many different ways that test equipment can be set up The configura tion tells the software how your system is set up to retrieve the correct results Find this item under the Configure menu Measurement Setups There are setups that affect all channels and some that are channel specific From the Configure menu choose Measurement Setups The Measurement Setups dialog box looks simila
101. a wsr file in the Results File Column in the Get Stored Results dialog box This file is ready to be imported into a worksheet The Import dialog box see Figure 3 29 gives several choices of how the data is imported into the worksheet m Exact channel information match only m Use blank channel information as wild cards m Verify mismatched channel information Cable TV RF Measurements Software for Windows User Manual 3 41 Menu Bar 3 42 Import Results A mismatched channel has been found in the import Results File Import Results File Worksheet Channel Channel Number 2 Letter lt blank gt lt blank gt Program lt blank gt lt blank gt Frequency 55 25 lt blank gt Import Channel Criteria Exact channel information match only Use blank channel information as wildcards Verify mismatched channel information Figure 3 29 The Import Results dialog box The top two choices will automatically load as much data as possible without user intervention The last option allows you to check and verify all information before loading any data Generally when using Import to get results from an instrument into a worksheet Use blank channel information as wild cards is the most efficient option since there will rarely be an exact match This is because the instrument only stores the channel number as the channel ID while the software stores the channel number program name and nominal visual
102. al Carrier Frequency parameter E1052 Incompatible channel type for XX record The Channel Type for the stated channel is incompatible with the stated YY instrument E1053 Incompatible test pulse offsetfrequency The test pulse offset frequency for the stated channel is incompatible with for XX record YY Enter a number the stated instrument between XX and YY E1054 Incompatible channel specific aural offset The aural offset for the stated channel is incompatible with the stated for XX record YY instrument E1055 Channel Edge out of range for XX The channel edge for the stated channel is incompatible with the stated record YY Enter a number between XX instrument and YY E1056 ible channel tag for XX record The tag for the stated channel is incompatible with the stated instrument Fora 2721A every channel must have a tag and must consist of characters A through Z and 0 through 9 only E1057 Incompatible second aural offsetfor XX An invalid value was detected for the second aural offset Enter a valid record YY Enter a number between XX selection and YY E1058 Incompatible C N bandwidth for XX The C N bandwidth for the stated channel is incompatible with the stated record YY Enter a number between XX instrument and YY E1059 Incompatible amplitude offset for XX The amplitude offset for the stated channel is incompatible with the stated record YY Enter a number between XX instrument and YY E1060 Channe
103. al Modem Command Description Baud rate Since the PC starts by sending AT commands to the modem the modem determines the rate of the incoming AT characters and communicates with the PC at that rate 9600 is recommended AT amp F Start with known factory settings AT N3 AutoR eliable connection Makes the fastest possible connection and uses the best possible error correction and data compression Optional AT amp K3 Enable RTS CTS hardware flow control AT amp Q5 Use asynchronous error correction mode AT amp D0 Ignore on to off transitions of DTR This keeps the modem from hanging up when the Terminal program is exited and the PC drops DTR before the Software is started ATN1 Connect at the highest rate supported by both modems Optional AT amp WO Write these settings in profile 0 This profile is loaded and used when the modem is turned on Remote Modem Settings F 2 Connect the remote modem to a terminal to establish these settings and store them Set up the modem with the following commands Table F 3 Settings for Remote Modem Command Description Baud rate The modem determines the rate based on the incoming AT commands sent to it during configuration The rate at which the terminal talks to the modem during this configuration session is remembered by the modem and is the rate at which the modem will communicate with the device at the remote end A baud rate of 9600 is recommende
104. an Table std cht Test ID Learner s Permit Oslo hiner un Figure 2 13 The worksheet header after filling in all information Attach Change Channel See Advanced Setups Tutorial on page 2 39 or Appendix C Channel Table Table Editor if you must change the Channel Table Cable TV RF Measurements Software for Windows User Manual 2 17 Basic Tutorial Make Simple Measurements One Measurement for One Channel You now have enough background to begin making simple measurements and you have created a new worksheet so you will not overwrite an existing one NOTE Do not use the 2714 and early 2715s to take digital measurements The 2714 will not take digital measurements Average Power Desired To Undesired and Adjacent Channel Leakage but uses the same channel table format as the 2715 If the software attempts to take a digital measurement using the 2714 measurements returned will be incorrect errors will be returned or the software will behave unpredictably To make one measurement on one channel select a cell From the Measure menu choose Current Selection or choose Meas Sel from the Button Bar or Mouse Keyboard Double click on a cell with the left mouse button Press ESC or the arrow keys until the cursor is in the spreadsheet Use the arrow keys to move the cell outline to the desired cell then press Enter The measurement results appear in the cell replacing any previous results The previous
105. and prompts you to turn it off It also performs all of the measurements in one sweep instead of one sweep for each test location Enter either the absolute or relative frequency locations relative to the visual carrier where you want this measurement made See Distinguishing 2714 CTB and CSO Measurement Results on page 3 65 for information on how the CSO and CTB measurements are calculated Cable TV RF Measurements Software for Windows User Manual 2 43 Advanced Setups Tutorial 2 44 In Channel Response Group Enter the six frequencies relative to the visual carrier where you want the measurement calculated in the Test Locations text boxes The signal could also be gated Gated means that the measurement is made on a quiet unmodulated line and the carrier does not need to be turned off The 2715 is the only instrument that can perform gated measurements Command Buttons for the Edit Setups for Channel XX Dialog Box There are three special command buttons located in the Edit Setups for Channel XX dialog box They are Get Defaults Save as Defaults and Copy to All Channels m Get Defaults The Get Defaults command button takes the default Measure ment Setup values from the software initialization file and places them in the text boxes It also sets the option buttons to the default values You select which groups of default values you want loaded using the check boxes as shown in Figure 2 36 Get Defaults O In Chan
106. andard spreadsheet display See Figure 3 22 All of the measurements and channels are in the same order as the spreadsheet This view allows for a quick overview of how the system is doing White blocks indicate that there are no defined limits or no measurement results Green blocks mean the measurement is passing Yellow blocks indicate that the measurement is in the Caution range Red blocks indicate that the measurement has violated the Alarm limits Blue means that an error occurred in making the measurement and the results are invalid Gray means that the cell is either not included in the transfer to the RF instrument or the measurement cannot be performed on the channel analog only measurements cannot be taken on digital channels and digital only measurements cannot be taken on analog channels See Appendix C Channel Table Editor for more details on this Channel Table field Cable TV RF Measurements Software for Windows User Manual Menu Bar Global View No View Filter is On View Results Detail Vis Vis Aur Aur 2nd 2nd Ay Ex ee ee Le x Al H Mod Car Car Car Car Aur Aur ova 7 AES T Mod E Ujo Lev Frq Lev Frq Lev Freq sal TTP TL a e fF Soe eal ei E Ss B gt EA or Te ee Figure 3 22 Global View dialog box Access the Result Detail display along with the Channel and Measurement Summaries see page 3 25 from the Gl
107. annel Any adjacent channels that are outside of this frequency window are not included in the calculations Select what is required for your system and then choose OK Cable TV RF Measurements Software for Windows User Manual 2 77 Advanced Measurements Tutorial Parameters Lox Adjacent Channel Window MHz Cancel Her Figure 2 69 The Parameters dialog box Choose the OK command button to save the changes to the measurement limits and exit the Measurement Limits dialog box The 2714 2715 User Defined Program UDP 2 78 There are many times when tests need to be run at a remote location away from the convenience of the computer running the software application but you still want to incorporate the data into the spreadsheet The answer is to generate a User Defined Program UDP A UDP is basically a Measurement Sequence run on the 271X at a remote location When the remote testing is completed return the results to the software application The spreadsheets and reports using data from the UDP are very similar to the data collected directly with the software application For example a worksheet is used to generate a UDP for the 271X The 271X is removed and taken to various field test locations using the UDP for measurement results gathering Remember that the UDP carries not only the Measurement Sequence instruc tions but also much of the header and configuration information Table 3 7 on page 3
108. are for Windows User Manual SS a Parts of the Worksheet This chapter describes the parts of the Cable TV RF Measurements Software for Windows The parts of the worksheet are identified in Figure 3 1 Control menu box Title bar Minimize Tektronix Cable TY RF M t ftw Restore or ektronix Cable easurements Software vat Menu bar gt File Edit View Measure Configure Execute Help maximize button open J save J siovet Resuts status Meas Sei Mone Seal Test 10 Seuns Button bar Worksheetheader Worksheet lt untitled gt Site lt undefined gt ho view Fueron Chan Table pumbtest cht Test ID lt undefined gt No View Filter is On J View filter status box Visux Visual Aural Aural 2nd Aural Measurement gt Saner Carrier Carrier Frequency Car Frequency header Cev dBmV Freq MHz Lev dBc Offset MHz Lev dBc ffset MHz Vertical scroll bar Spreadsheet Channel header Cell Horizontal scroll bar Figure 3 1 Parts of the Cable TV RF Measurements Software for Windows worksheet Title Bar Title bars list the application names that are running in Windows The title bar of the active application is highlighted The title bar is also a handle for moving the window Click on the Title Bar and hold down the left mouse button to move the window to the desired position Cable TV RF Measurements Software for Windows User Manual 3 3 Parts
109. ate this structure fill it with test results and access the results for verification analysis and reporting For example create the directory structure shown in Figure D 1 using the Windows File Manager Begin this directory tree anywhere such as your 271X_SW directory but not in your LIMITS directory for the software It is good practice not to put anything in the Limits directory except Limits files Cable TV RF Measurements Software for Windows User Manual D 1 Appendix D FCC Measurements HEADEND WRK 6 HEADEND WSR TP132 WSR E 7 FIELD WRK TP132 PC WSR 8 lt TP146 WSR TP146 PC WSR XN Figure D 1 Organization of files for logical record keeping D 2 FCCTESTS is a directory that contains all of the FCC type measurement results Group each test session by the month and year performed A test session is defined as all the FCC required twice yearly performance tests for a particular system JULY95 is a sub directory of the FCCTESTS directory that contains all of the measurement results for July of 1995 Group the performance tests by those required at the Headend output of modulating or processing equipment and those required at the field test sites for example subscribers terminals HEADEND is a sub directory of JULY95 that contains the results of the Headend measurements for that month Notice that there are no files above this level only directories
110. ay Unless that particular field can only be edited in the 271X_SW INI file edit them in the Cable TV RF Measurements Software for Windows application If the 271X_SWAINI file does become corrupt for some reason it can be completely deleted but not while the application is running The next time that Cable TV RF Measurements Software for Windows User Manual E 5 Appendix E Files the software is run it will create a new 271X_SW INI file Some defaults may then need to be recreated to match your preferences Table E 4 The 271X_SW INI File 271X_SW INI File Explanation 271X_SW General control of the software application window Maximized 0 0 Main window not maximized 1 Main window maximized Position 172 28 797 498 The last location of the upper left and lower right corners of the main application window in xy coordinates Sites This topic lists all of the Sites This list of Sites continues to grow as you add more Sites in the Worksheet Info dialog box The only way to remove Sites is to delete them from this file Num Sites 2 Total number of Sites in the list Site Index 0 Which Site is loaded whenever a new worksheetis created or the software is initially loaded Site0 Site names Sitel Tektronix Test ID This topic lists all of the Test IDs in your list This list of Test IDs continues to Num Test IDs 4 Test ID Index 0 Test ID0 Learner s Permit Test ID1 Test ID2 Training Wheels Te
111. ble see the 2721A 2722A manual No remote Channel Table delete on a 2721A See 2721A 2722A manual for delete instructions Cable TV RF Measurements Software for Windows User Manual B 11 Appendix B Error Warning and Informational Messages B 12 Cable TV RF Measurements Software for Windows User Manual D aap Appendix C Channel Table Editor The purpose of Channel Table Editor is to create and edit channel tables not only for the Cable TV RF Measurements Software for Windows but also for 2714 and 2715 instruments You can create channel tables in the Channel Table Editor and then load them into the test equipment for automated testing and measurement gathering Although the software can call the Channel Table Editor the editor is also a standalone application NOTE You can use CTLOADE with other Tektronix products but the Cable TV RF Measurement Software supports only the 2714 and 2715 If you are using the Cable TV RF Measurement Software ignore references to products other than the 2714 and 2715 What is in this appendix m How to start the Channel Table Editor m How to create a new channel table m How to edit an existing channel table m How to load a channel table into the test equipment m Cautions m Channel tables provided with the software m Overview Cable TV RF Measurements Software for Windows User Manual C 1 Appendix C Channel Table Editor How to Start the Channel Table Editor T
112. ble Editor C 21 To C 9 Tune to Channel 3 40 TV1350 channel tables C 12 U UDP 2 78 3 52 B 2 B 4 Glossary 2 defining 2 79 running 2 81 upper limits 3 59 Use ICR channel information C 29 Use Quiet channel information C 29 Use White channel information C 29 V Vertical Scroll Bar 3 6 video driver 2 34 3 34 Video Polarity channel information C 29 Video Standard B 6 Edit Table Info C 19 View 3 21 Channel Table Editor C 19 View Channel Table Fields Check Box Channel Table Editor C 27 View Fields Channel Table Editor C 27 view filter 2 59 2 65 3 36 B 4 B 9 B 10 full spreadsheet 2 68 Measurement Results 3 61 Measurement Sequence Results 2 30 2 68 3 36 Measurements and Channels 2 65 3 34 Test ID 3 37 Test ID Results 2 70 View Used 3 36 View Filter Status Box 2 5 3 5 3 35 3 37 3 38 View Results Detail Status Report 3 24 View Violations 3 24 View Used 3 36 Measurements and Channels view filter 2 36 View Violations 2 57 3 24 Status Report 3 24 View Results Detail command button 2 58 Violations Report Report Out RS 232 2 50 Visual Carrier Frequency B 7 limits 3 58 Visual Carrier Level Difference 3 61 visual frequency 3 5 channel information C 28 W white 2 23 3 23 3 32 White Line channel information C 29 Windows NT 1 1 Worksheet 2 3 2 4 3 4 file E 5 set up 2 14 Workshe
113. c 0 9 and A Z space is OK as long as there are additional valid characters Visual or Center Freq For an analog channel the visual carrier frequency For a digital channel the center frequency of the channel 4 Channel Width The width of the channel 2714s and 2715s with firmware version 09 29 94 and earlier have a single global channel width To send a channel table to one of these instruments all channel widths must be the same Channel Edge The frequency difference between the visual or center frequency and the lower bound of the frequency allocation For example for analog channel 2 in the USA the Visual or Center Freq is set to 55 25 MHz the Channel Edge is set to 1 25 MHz and the Channel Width is set to 6 0 MHz For digital channels the Channel Edge should be of the Channel Width For example a digital channel centered between 57 and 60 MHz should have the following values in the channel table Visual or Center Freq set to 58 5 MHz Channel Width set to 3 MHz and Channel Edge set to 1 5 MHz 2714 2715 Channel Type The type of signals transmitted on this channel either CATV FM or DIGITAL This field is only for the 2714 2715 RFM150 Channel Type The type of signals transmitted on this channel This field is just for the RFM 150 Aural Offset The nominal difference between the visual and aural carriers This is a single channel aural offset 2714 2715 Second Aural The offset between the visual carrier and
114. ceeeeeee 2 59 Figure 2 52 The Copy dialog box cc cece ccc e cs cceees 2 60 Figure 2 53 The results of pasting the Clipboard data into Excel 2 61 Figure 2 54 The Copy dialog box c cece ccc e ce eeeees 2 62 Figure 2 55 The result of the Copy As Displayed pasted into Excel 2 63 Figure 2 56 Data for the Carrier to Noise Ratio for four channels 2 64 Figure 2 57 The Export dialog Dox ccececcecscceees 2 64 Figure 2 58 Measurements and Channels View Filter dialog box 2 66 Figure 2 59 The Measurements and Channels dialog box 2 67 Figure 2 60 The spreadsheet with the Measurements and Channels View Filter on 0 cece cece cece cece cece 2 67 Figure 2 61 The message to turn on the Measurement Sequence Results filtet snscess ccetelenecete ecsvea pais ge 8 ordea d ero eeoa i nun eee 2 69 Figure 2 62 The spreadsheet with the Measurement Sequence Results filter turned on cece eee cece cere rere enone 2 69 Figure 2 63 The results of turning on the Test ID Results filter 2 70 Figure 2 64 The Measurement Limits dialog box 2 72 Figure 2 65 The Edit Limits File ntsc lim dialog box 2 73 Cable TV RF Measurements Software for Windows User Manual Table of Contents Figure 2 66 Figure 2 67 Figure 2 68 Figure 2 69 Figure 2 70 Figure 2 71 Figure 2 72 Figure 2 73 Figure 2 74 How limits work An example of an error me
115. cells To deselect double Press TAB until the cursor is in the spread click on the cell again sheet Use the arrow keys to move to the cell then select the cell by pressing the spacebar To deselect press the spacebar again Your dialog box should resemble Figure 2 24 Cable TV RF Measurements Software for Windows User Manual 2 27 Basic Tutorial Measurement Sequence Auto Selection 24 Hour Test FCC Post Converter FCC Pre Converter FCC Headend Msmts O Carrier Survey Vis Vis Aur Aur 2nd Ei Fr Ley Fr Lev Freq H Figure 2 24 The Measurement Sequence dialog box measurements selected 4 Choose the Edit Time Parameters command button The display should be similar to Figure 2 25 Edit Time Parameters Time Parameters gt Run aaau Start Day Run N Times Repeat Interval Figure 2 25 The Edit Time Parameters dialog box 2 28 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial 5 If necessary deselect the Run Continuously check box To deselect a check box Press TAB until the cursor is around the Run Continuously box then press the spacebar to deselect that check box or use ALT the letter Click on the Run Continuously check box Select the Run Immediately check box from the Time Parameters group Enter 1 in the Run N Times text box Enter 0 in the Repeat Interval text box FNS The rest of the opt
116. channel and measurement type and clicking a mouse In addition the software can automati cally monitor all in service RF measurements and signal an alarm when a measurement exceeds a specified limit Measurement results are displayed in a table of channel vs measurement type For any measurement on a particular channel you simply click the mouse on that data cell and a window appears with more information As with other Windows based software Cable TV RF Measurements Software for Windows data is exportable to other Windows based software such as Microsoft Excel for in depth data analysis If you have any problems using this product please call the Tektronix help line at 1 800 TEK WIDE 1 800 835 9433 This manual assumes that you are familiar with Windows 3 1 and its terms For more information about Windows please refer to the Windows tutorial in the Windows reference manual The basic layout of this manual is 1 This Preface 2 Installation instructions to load the Cable TV RF Measurements Software for Windows application onto the hard disk and prepare it for operation 3 A tutorial for the beginning user including basic terminology and how to make simple measurements 1 The 2715 Spectrum Analyzer with either Option 50 or Option 75 installed is capable of frequencies up to 2 15 GHz Frequencies above 1 8 GHz are not supported by the Cable TV RF Measurements Software Cable TV RF Measurements Software for Windows Us
117. channels 3 5 Mouse Single click on the Visual Carrier Level cell for the second channel channel 3 Keyboard Use the arrow keys to place the cursor around the Visual Carrier Level cell for the second channel Channel 3 Start the mouse pointer in the selected cell then hold down the left mouse button and drag the mouse cursor until the desired cells have reversed color Release the left mouse button The selected cells keep the reversed color except for the original corner cell which is outlined Hold down the SHIFT key and use the arrow keys to select the desired cells The selected cells reverse color except for the original corner cell which is outlined The spreadsheet resembles Figure 2 8 Note that the selected cells have reversed in color except for the corner cell which is outlined Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Tektronix Cable TY RF Measurements Software File Edit View Measure Configure Execute Help Worksheet lt untitled gt Site lt undefined gt z x Chan Table pumbtest cht Test ID lt undefined gt Visual Visual Aural Aural 2nd Aural 2nd Aural Carrier Carrier Carrier Frequency Carrier Frequency i dBm Freq MHz Lev dBc Offset MHz Lev dBc Offset MHz Figure 2 8 A group of cells selected Selecting an Entire Row or Column Mouse Keyboard Single click on the name of the measurement Place the cursor a
118. command button to remove any previous Measurement Sequence Choose the FCC 24 Hour Test Auto Selection command button Choose the Create 2714 2715 UDP command button The dialog box appears as shown in Figure 2 71 Create 2714 2715 UDP UDP Title Figure 2 71 The Create 2714 2715 UDP dialog box Enter Remote in the text box Accept this UDP title the same as the worksheet by choosing the OK command button The UDP Remote is generated and loaded into the 271X This title appears in the USER DEF menu of the 271X The Create 2714 2715 UDP dialog box goes away if the UDP was successful in loading if it fails an error message appears The most common error is Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Run the UDP 1 having more than 9 UDPs defined in a single instrument At the instrument delete one or more UDPs and then try again Take the 271X to the remote location and connect it to the test point Define the 271X SITE parameter Beaverton Remote 1 is the example The Site name is not defined in the UDP therefore it must be done on location in the 271X Execute the UDP using the 271X front panel keys in the 271X USER DEF menu Allow the 271X to run until all measurements are collected This will take 24 hours to complete but it can be stopped after one iteration Now that you have gathered the data it needs to be loaded back in
119. ct std cht from the File Name list box This channel table comes with the software application Choose the OK command button The channel table will load and will appear similar to Figure C 7 Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor Channel Table Editor std cht File Edit View Transfer Help RFM150 Channel 55 250000 6 1 250000 CATY 61 250000 6 1 250000 CATY 67 250000 6 1 250000 CATY 77 250000 6 1 250000 CATY 83 250000 6 1 250000 CATY 91 250000 6 1 250000 CATY 97 250000 6 1 250000 CATY Channel Table Editor std cht Help Sigl Pi Dwell Use White Quiet Use Aee Video syne HY egam Time White Line Line ICR Hi Polarity ane la 0 Minus Plus 0 Minus Plus 0 Minus Plus 0 Minus Plus 0 Minus Plus 0 Minus Plus Channel Table Editor std cht File Edit View Transfer Help ICR Switcher ed Program ae Test Pulse i Control Line Offset String Lif 2 No l i Figure C 7 The std cht channel table with all fields shown Cable TV RF Measurements Software for Windows User Manual C 7 Appendix C Channel Table Editor C 8 5 From the File menu choose Save As The dialog box looks similar to Figure C 8 File Name Directories learners cht c 271x_sw I fe cA gt 271x_sw help G limits Drives c tek_159438 Figure C 8 The Save As d
120. cy Vis Car Level Variation Aural Carrier Level Aural Frequency Offset 2nd Aural Carrier Level 2nd Aural Freq Offset Average Power Carrier to Noise Desired to Undesired TB Cross Modulation Adj Channel Leakage In Channel Response Hum LFD cso Figure 2 65 The Edit Limits File ntsc lim dialog box Three of the columns Range Lower Limit Range Upper Limit and Units define the allowable ranges These columns are not editable The other four columns define the Alarm and Caution ranges The caution and alarm columns define the way the measurement results are categorized See Figure 2 66 for an example of the three types of measurements and the different limits that they require The Aural Frequency Offset requires both upper and lower limits The Carrier to Noise Ratio has only lower limits You do not want warnings that your signal is too good The ICR has only upper limits Again you do not need flags that your signal is too good Cable TV RF Measurements Software for Windows User Manual 2 73 Advanced Measurements Tutorial 2 74 Aural carrier frequency Upper amp lower limits Alarm Caution Good Caution Alarm gt 5 3 3 5 kHz Carrier to noise Alarm Caution Good Only lower limits gt 43 45 dB ICR Good Caution Alarm Only upper limits lt _ 15 2 dB Figure 2 66 How limits work If you attempt to enter an Upper or Lower Limit outside the ranges de
121. d AT amp F Start with known factory settings Cable TV RF Measurements Software for Windows User Manual Appendix F Controlling a 2714 2715 Over a Modem Table F 3 Settings for Remote Modem Cont Command Description AT N3 AutoR eliable connection Makes the fastest possible connection and uses the best possible error correction and data compression Optional AT amp K3 Enable RTS CTS hardware flow control AT amp Q5 Use asynchronous error correction mode ATN1 Connect at the highest rate supported by both modems Optional AT SO n Sets the modem to auto answer on the nth ring Note that the 0 in SO is a zero ATQ1 Disable results codes The 271X does not understand results codes and will generate syntax error messages if it receives them AT E0 Inhibit command echo The 271X should not be sending anything to the modem before the link is established so this is justan added precaution AT amp WO Write these settings in profile 0 This profile is loaded and used when the modem is turned on 271X Settings Press the UTIL 4 0 2 keys to get to the RS 232 settings menu Configure as shown in Table F4 Table F 4 Settings for the 271X Setting Value 0 STATUS ONLINE 1 BAUD must match the remote modem setting 2 DATA BITS 8 3 PARITY NONE 4 EOL CRLF 5 FLOW CONTROL HARD RTS CTS 6 ECHO OFF 7 VERBOSE OFF Cable TV RF Measurements Software for Windows User Manual F 3 Appe
122. d measurements and channel before itis allowed to be enabled After clearing the selected cells the View filter is no longer valid It will revert back to normal view A tunable channel cannot be determined from current selection More that one channel has been selected Select one cell then try again No stored results were retrieved from the 2714 2715 No results files in the 2714 2715 or they were empty Only a sequence may be executed when the sequence view filter is active No other measurement can be made A sequence has not been defined Some of the imported results may not be displayed due to an active view filter You cannot run a Measurement Sequence Use Measurement Sequence from the Configure menu to create a Measurement Sequence You may have imported more data than is displayed Turn the View Filter off to display all of the data Cable TV RF Measurements Software for Windows User Manual Appendix B Error Warning and Informational Messages Table B 3 Informational Messages Cont Message Explanation Default Limits file XX not found or invalid Create a new limits default file by choosing the Save As Default Limits command button from the Edit Limits File dialog box Limit check passed for all specified instruments All parameters in the Channel Table were within limits for all selected instruments You cannot delete a 2721A Channel Table remotely To delete a 2721A Channel Ta
123. dialog box 0 0c cece eee eee eee 3 69 The Help Men 5 05 0 05 0 cee be ease ketenes 3 70 The Help Contents dialog box 0000 3 71 The About dialog box cece cece eee eee 3 71 Figure 3 54 Cable TV RF Measurements Software for Windows User Manual Table of Contents Figure C 1 The main window of the Channel Table Editor with std cht loaded cece cece ccc e cee ee ee eens C 2 Figure C 2 The Edit Table Information dialog box C 3 Figure C 3 The test1 cht Channel Table before beginning the edits C4 Figure C 4 The Channel Table Editor with data for one channel entered ecco 65 6664 6S abe ei Sis Sake Ole ae Dee Sis C 4 Figure C 5 Warning that you have made changes and not saved them occse is acess wisi S iba ates arenes E EE ROEE eek ee eee C 5 Figure C 6 The Open dialog box ccc cccccccecscceces C 5 Figure C 7 The std cht channel table with all fields shown C 6 Figure C 8 The Save As dialog Dox cccceccecscceces C 7 Figure C 9 The Copy Fields to End dialog box C 8 Figure C 10 The To dialog Dox cece cece ce eee ee eeee C 9 Figure C 11 The Control Box menu cccceceeeeees C 14 Figure C 12 The Menu Bar cc cee cc cece ccc cceceeens C 15 Figure C 13 The File menu cece cece ccc ce sce cceees C 15 Figure C 14 The Open dialog Dox c ccc ccc cc sce cceces C 1
124. diately check box and make sure that the Run Continu ously check box is not checked 7 Choose the OK command button to save the changes and leave the Edit Time dialog box You are back to the Measurement Sequence dialog box 8 Choose the OK command button to save the changes and leave the Edit Measurement Sequence dialog box You are back to the spreadsheet Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial 9 Select the Meas Seq command button on the Button Bar to run the Measure ment Sequence At the end of the Measurement Sequence a message box similar to Figure 2 61 is displayed 2714 2715 SW Warning W357 Q Do you want to turn the Sequence view filter on Figure 2 61 The message to turn on the Measurement Sequence Results filter 10 Choose Yes to turn on the Measurement Sequence View filter The spread sheet looks similar to the one shown in Figure 2 62 Notice that there are no Second Aural measurements They are not enabled in this Channel Table Tektronix Cable TY RF Measurements Software File Edit View Measure Configure Execute Help Worksheet lt untitled gt Site lt undefined gt Chan Table std cht Test ID Learner s Permit Figure 2 62 The spreadsheet with the Measurement Sequence Results filter turned on 11 Turn off the Measurement Sequence Results filter From the View menu choose Measurement Sequence Results This toggles the view f
125. do is tune an external preselector to a new channel Alarm Caution or Error Conditions These check boxes allow you to be notified in several ways if an error alarm or caution flag occurs during a measurement Two different actions can occur a report can go out the RS 232 port or the software can stop making measurements and post an alarm message You can use any combination of these options The Pause Execution check box stops the measurements if it encounters a measurement that is in Alarm cell is red Caution cell is yellow or Error cell is blue until you choose the OK command button It is useful for system monitoring because it forces you to become aware of bad or non standard conditions Report out RS 232 sends a Violations Report out a COM Port set with the Connections dialog box Based on the selections the following information is sent Site Name Measurement Column Heading Channel Number Program Condition Type alarm caution or error and Date Time This information is tab delimited and packetized For more information on intercepting an alarm see Measurement Execution on page 3 47 Set the Preferences to m Collect History m dBmV Power Level Units m Prompt for Signal Connection m Pause on New Channel m Pause Execution On Alarm 1 Select Carrier Levels and Frequencies for the first two channels 2 From the Measure menu choose Current Selection First you are prompted to connect the 271X see
126. does not have the Second Aural Frequency set If the Channel Table has a value then the last two measurements are available Repeat this measurement for the next two channels on the list The resulting spreadsheet looks similar to Figure 2 17 Figure 2 17 The spreadsheet after making a few measurements 2 20 NOTE From now on the above steps required to make a measurement on a selected cell is referred to as Make the XX measurements on the XX channels Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Make Several To make several measurements select the cells then from the Measurement Measurements at a Time menu choose Current Selection or Meas Sel from the Button Bar If you want to make all the measurements for a given channel select the row for that channel Then from the Measure menu choose Current Selection or double click on the channel name in the Channel Header This takes measurements on the entire channel Use a similar procedure to take one measurement for all the channels select all the channels for that measurement then from the Measure menu chose Current Selection or double click on the Measurement Header Remember you cannot use this method to make measurements on non adjacent cells because they cannot be selected together Use a Measurement Sequence see page 2 25 to make measurements on non adjacent cells Since it usually takes a little while for groups of m
127. e 2 1 lists the measurements available under the Auto Selection command buttons They all have Carrier Levels and Frequencies for all channels Other measurements are for user selected channels only Table 2 1 Measurements Taken by Auto Selection buttons Auto Selection Button FCC FCC FCC Pre Converter Post Converter Headend 24 Hour Test All Channels Carrier Levels Carrier Levels Carrier Levels Carrier Levels and Frequencies and Frequencies and Frequencies and Frequencies Selected Carrier to Channels Noise Ratio Selected Channels Selected Channels Selected Channels Selected Channels 1 The 24 Hour Test automatically includes 4 repetitions at 6 hour intervals Set Up an Auto Selection Measurement Sequence 1 From the Configure menu choose Measurement Sequence The Measure ment Sequence dialog box appears 2 Choose the Clear Sequence command button to erase any old Measurement Sequence information Cable TV RF Measurements Software for Windows User Manual 2 31 Basic Tutorial Mouse Click on the Clear Sequence command button Keyboard Press ALT c with the left mouse button 3 Choose the FCC Pre Converter command button from the Auto Selection group The FCC Pre Converter Measurements dialog box appears as shown in Figure 2 29 FCC Pre Converter Measurements Carrier Levels and Frequencies will be executed for All Channels The following measurements will be executed for the Sel
128. e 2 30 Measurement Sequence Auto Selection Edit Time Parameters 24 Hour Test FCC Post Converter Create 2714 2715 UDP Cancel CC Pre C EE Msmt ECC Pre Converter FCC Headend Msmts Ca See Help C Carrier Survey Vis Vis Aur Aur 2nd 2nd Be Oey fal bee i Bs A l H Car Car Carl Car Aur Au E S T e e a our ev Frq Lev Fiq Lev Fr uj ols HERH EM fey 2 ESEJESEJEJSE x B ae 5 E a ss E a y E o E o E e E r E E E E E EE Figure 2 30 Measurement Sequence dialog box after Auto Selection command and a few additional measurements 7 Choose the OK command button to return to the spreadsheet Run an Auto Selection Measurement Sequence You run the Auto Selection Measurement Sequence in the same way that you run any other Measurement Sequence It requires nothing special Carrier Survey The Carrier Survey check box allows you to quickly select all of the Carrier Level and Frequency measurements and Average Power measure ments More details are available in Current Selection on page 3 39 Cable TV RF Measurements Software for Windows User Manual 2 33 Basic Tutorial Display the Picture Optional There will be times that you want to see what the broadcast signal looks like while you are making measurements on it For example your first channel just miserably failed its last FCC Measurements check and you would like to see the amount of picture distort
129. e Help file has been lost Make sure that there is a help sub directory in the 271X_SW executable directory Check to see if there are any hlp files in that sub directory E333 Video driver XX notactive The Video driver must be running before Picture from the View menu can activate Make sure that your Video Driver is one that is supported by this application Make sure that the Video driver title from the Switch To window for the Video driver is the same name as is in the 271X_SW INI file The video board and its driver are not part of this software package B 4 Cable TV RF Measurements Software for Windows User Manual Appendix B Error Warning and Informational Messages Table B 1 Error Messages Cont Error Number Error Message Explanation E334 Channel Table Editor not found The Channel Table Editor application CTLOADE is notin the 271X_SW executable directory E335 Error printing report An error occurred printing a report Ensure that print options were appropriately selected and the printer is correctly connected to the PC E336 Channel Table file XX not found or is The Channel Table requested either cannot be found or is corrupt Request invalid another Channel Table and try again E337 Default Channel Table file XX is not The default Channel Table either cannot be found or is corrupt Request found or is invalid another Channel Table and try again E338 Reserved E339 Reserved E340 Limits relatio
130. e addresses are for loading and retrieving channel tables in the test equipment and for controlling the switcher If the switcher settings Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor were correct in the software application they will not need to be edited here Any changes in this dialog box affect both applications NOTE To ensure proper operation and prevent software conflicts verify that all ports and GPIB addresses are unique and match the addresses set in the instruments The ports and addresses must be unique for both the Cable TV Software and the Channel Table Editor Connections 2714 2715 Spectrum Analyzer ox 3 GPIB Address o A 232 Baud Rate COM Pott eat Hee TDC 10 Downconverter Osp GPIB Address RS 232 Baud Rate COM Port 2721A Sweeper COM Pott RFM150 Signal Level Meter Baud Rate COM Port 2 Switcher Control Port COM Pott Baud Rate 9600 E Flow Control Parity Stop Bits 1 E Data Bits Delay Figure C 32 The Connections dialog box Help The Help menu contains access for on line help m Contents Contents displays information about Channel Table Editor including a description of the main window m About Displays the version number and copyright information See Figure C 33 Cable TV RF Measurements Software for Windows User Manual C 27 Appendix C Channel Table Editor Button Bar Open
131. e clipboard using CNTRL INSERT or CNTRL4C and then attached to the worksheet name cell in Excel as a text note Test ID The Test ID is the name of the operator test point or whatever identifier is most appropriate The Test ID dialog box see Figure 3 33 consists of a combination box and a list box All Test IDs and Worksheet Test IDs All Test IDs lists all of the Test IDs that have ever been used Enter new Test IDs here Worksheet Test IDs are the IDs used in the current worksheet Test ID All Test IDs Learner s Remote lt undefined gt Bruce Edson 1 M Stored Learner s Permit Learner s Remote SUE Sue Gabriel Training Wheels Worksheet Test IDs Learner s Remote Figure 3 33 The Test ID dialog box Cable TV RF Measurements Software for Windows User Manual 3 45 Menu Bar 3 46 Preferences Use this field to flag certain measurements and then use the View Filter so only cells that have a measurement associated with the selected Test ID are displayed See page 3 37 for how to the use the Test ID View Filter To quickly change the Test ID filter select the Test ID from the Worksheet Test IDs group and the View Filter will switch to that Test ID Also change the Test ID using the Test ID command button from the Button Bar see page 3 72 This dialog box see Figure 3 34 sets the way results are collected and displayed Preferences Me Collect History Cancel Power Level Units
132. e most accurate measurements The following topics are covered Review the correct RS 232 and GPIB connections Set the 271X controls Select how the measurements are made Change to a different Channel Table Select whether or not to collect history Select the Power Level Units Turn the user prompts and alarm messages on or off Cable TV RF Measurements Software for Windows User Manual 2 39 Advanced Setups Tutorial Configure Connections How the Connections are set up was already touched on in the Installation chapter but it is re explained here for completeness The first time running the Cable TV RF Measurements Software for Windows application or any time that the test equipment connections change choose Connections from the Configure menu The dialog box looks similar to the one shown in Figure 2 33 Verify that the software knows the addresses of the test equipment Connections F 2714 2715 Spectrum Analyzer GPIB Address 0 oO RS 232 COM Port fi E Baud Rate Cancel F Switcher Control Port COM Pott e E Baud Rate Flow Control NONE gt Parity Stop Bits i E Data Bits Delay M RS 232 Violations Reporting COM Port e E Baud Rate 9600 gt Figure 2 33 The Connections dialog box NOTE To ensure proper operation and prevent software conflicts verify that all ports and GPIB addresses are unique and match the addresses set in the instruments The ports and addresses
133. e new channel to the end of the channel table m Copy Fields to End This command allows you to copy the selected channel fields to all of the channels below the selected one in the channel table See Figure C 19 Use this command to quickly make universal changes This dialog box does take the View Fields into account If a field is not in view then it is not listed in the Available Fields list box Copy Fields to End Selected Fields Available Fields Channel Width 6 000 Channel Edge 1 250000 2714 2715 Channel Type CATY RFM150 Channel Type NTSC Aural Offset 4 5 2714 2715 2nd Aural Carrier 0 00 RFM150 2nd Aural Offset None Scramble No C N Bandwidth 4 0 Amplitude Offset 0 0 Dwell Time Short Use White No White Line 0 Figure C 19 The Copy Fields to End dialog box m Edit Table Info Edit Table Info opens the Edit Table Information dialog box filled with the information that is standard throughout the channel table See Figure C 20 Cable TV RF Measurements Software for Windows User Manual C 19 Appendix C Channel Table Editor Edit Table Information Number of Channels 2714 2715 Aural Offset 4 500000 MHz Video Standard NTSC PAL M TDC 10 Aural Offset MHz Figure C 20 The Edit Table Information dialog box Table Name The name of the channel table Number of Channels The number of channels in the channel table If you edit this number to increase
134. e the No command button This displays the New dialog box as shown in Figure 2 10 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Site e Description m SIS Cancel Channel Table File Name Directories Create Edit Channel Table A271 ow b cast cht caty hie cht caty irc cht relies aor ini Save As Default chin_dk cht 5 limits ES china dk cht digilog cht eur bg cht E c tek_159438 Figure 2 10 The New dialog box 3 Select the Site combination box Click on the Site combination box Press TAB until the cursor is blinking in the Site list box 4 Select a Site name The example uses Tektronix Beaverton Mouse Keyboard Type in your Site name or click on the arrow box to select a Site name from the combina tion box Use a site name appropriate for your setup Type in your Site name or press the up or down arrow keys to select a Site name from the combination box 5 Select the Description text box Mouse Keyboard Click the left button in the Description text box Press ALT p or TAB Cable TV RF Measurements Software for Windows User Manual 2 15 Basic Tutorial 6 Enter the description This worksheet is for practice only 7 Select std cht as the Channel Table by clicking on std cht in the list box 8 Leave the New dialog box and save the changes by choosing the OK command button
135. easurement m Down arrow Moves down a channel while staying in the same measurement Cable TV RF Measurements Software for Windows User Manual Menu Bar Left arrow Stays in the same channel but moves one measurement to the left Right arrow Stays in the same channel but moves one measurement to the right Select History Use these command buttons to display measurement history Prev This command button selects the previous measurement results history Next This command button selects the next most recent measurement history Measurement Summary The summary lists the results for each measurement Measurement Lists the measurements contained under the Measurement Header in the spreadsheet For example HUM LFD has Hum LFD Fundamental and Hum LFD Second Harmonic Result Lists the numerical results of a measurement Flags whether a given measurement was in violation of either the Caution limits or the Alarm limits Violated Lower Limit If the results violated the lower limit defined by the Limits file then the limit is printed in this column Violate Upper Limit If the results violate the upper limit defined by the Limits file then the limit is printed in this column Date Time The date and time of the measurement This comes from the internal clock of the instrument making the measurement unless the measurement is invalid an error then the time comes from the PC Use the horizon
136. easurements to complete you can switch to other Windows applications while the measurements are executing Example Make CSO Measurements for Several Channels 1 Scroll the spreadsheet horizontally to display the CSO measurement column 2 Select the first three channels for a CSO measurement From the Measure menu choose Current Selection A dialog box similar to Figure 2 18 appears Measurement Execution Executing CSO measurement on Channel 3 61 25 at Figure 2 18 Measurement Execution dialog box 3 If you need to stop the measurement choose the Cancel command button This stops after completing the current measurement ESC RETURN and spacebar will cancel the measurement If everything is fine do nothing The spreadsheet cells should look similar to Figure 2 19 Cable TV RF Measurements Software for Windows User Manual 2 21 Basic Tutorial Figure 2 19 The spreadsheet cells after making a group of measurements Notice that this measurement only gives the worst case numerical results There are several separate measurements under this Measurement Header and there is not enough room to report all of the results in a single cell The measurements under this measurement heading are CSO measurements at up to five different locations What if you want to see the individual results of each of these measurements You enter the Results Detail Display Results Detail Display The Results Detail Display gives
137. ected Channels In Channel Response Select Channels Selected Channels Available Channels lt Select Figure 2 29 The FCC Pre Converter Measurements dialog box 4 Select several channels from the Available Channels list box and place them in the Selected Channels list box Mouse Keyboard Double click the left mouse button on the Press TAB until the cursor is in the Available 2 32 channel name for single channels F or several channels click on the first channel with the left mouse button then hold down SHIFT and click on the last channel in the list with the left mouse button Then choose the lt Select command button dialog box Channels list box Use the arrow keys to select a channel or to select several channels ata time hold down SHIFT while moving through the list with the arrow keys Add the selected channel s to the Selected Channels list box by pressing ALT e Choose the OK command button to return to the Measurement Sequence Add a Carrier to Noise measurement to the channels that also have an In Channel Response measurement Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Keyboard Double click those cells with the left mouse Press TAB until the cursor is in the spread button sheet Use the arrow keys to move to the cell then select the cell by pressing the spacebar The Measurement Sequence dialog box should look similar to Figur
138. ed up the process for likely groups of measurements there are four predefined Auto Selection measurement sequences They are FCC Pre and Post Converter measurements FCC Headend Msmts measurements and 24 Hour Test measurements If the country is not United States then only the 24 Hour Test automatic selection button is available The country is selected from the Windows Control Panel International icon Table 3 6 gives a list of measurements included in the Auto Selections These measurements are executed on the channels selected by the user Whenever one of these auto selec tion command buttons is chosen it loads the measurements immediately into the measurement sequence Additional measurements are then added or deleted as desired by the user to complete a measurement sequence Cable TV RF Measurements Software for Windows User Manual 3 49 Menu Bar 3 50 Table 3 6 Measurements Run Using Auto Configure buttons Auto Selection Button FCC FCC FCC Pre Converter Post Converter Headend 24 Hour Test All Channels Carrier Levels Carrier Levels Carrier Levels Carrier Levels and Frequencies and Frequencies and Frequencies and Frequencies Selected ICR Carrier to Channels Noise Ratio Selected cso Channels aa Selected Channels Selected Cross Channels Modulation Selected Hum Channels 1 The 24 Hour Test automatically includes 4 repetitions at 6 hour intervals There are other options on the
139. ed visual carrier and low frequency disturbance measured on the modulated carrier In Channel Response The maximum variance in amplitude within a specified frequency range within a particular channel given a flat input over that same range Cable TV RF Measurements Software for Windows User Manual Glossary 1 Glossary Modulation Depth The percent amplitude modulation measured from sync tip to the lowest white level in 10 sweeps UDP User Defined Program A measurement sequence loaded into a 271X and run at a remote location Glossary 2 Cable TV RF Measurements Software for Windows User Manual Index Symbols 3 24 3 27 cht E 1 E 2 hip B 4 B 5 lim E 1 E 2 wrk E 1 E 2 wsr 2 60 2 82 3 41 E 2 3 24 3 27 Numbers 24 Hour Carrier Level Variation 3 24 24 hour carrier summary 3 30 24 Hour Test 2 31 2714 External Attenuation Amplification 3 63 Power Line Frequency 3 63 Preamp 3 63 2714 2715 External Attenuation Amplification 2 41 Power Line Frequency 2 41 Preamp 2 41 2714 2715 Channel Type channel information C 28 2714 2715 Screen 3 33 2714 2715 Second Aural channel information C 28 2715 Preamp 2 42 271X Aural Carrier Level measurement method 3 6 Aural Deviation measurement time 3 6 Visual Carrier Level measurement method 3 6 271X_SW INI B 3 E 5 A About 3 71 Channel Table Editor C 26 accuracy Glossary I ACL Group Edit
140. eets From the Configure menu choose Preferences Set Preferences to m Collect History m dBmV Power Level Units m No Prompt for Signal Connection unless necessary for your equipment setup m No Pause on New Channel unless necessary for your equipment setup m No Pause on Alarms Cautions or Errors From the Configure menu choose Measurement Setups Make the appropri ate selections for your system From the Configure menu choose Worksheet Info Select the std cht Channel Table or other appropriate Channel Table Select a Site name The examples use Tektronix Beaverton Select Hum LFD and In Channel Response for the first two channels From the Measure menu choose Current Selection or choose Meas Sel from the Button Bar Cable TV RF Measurements Software for Windows User Manual 2 53 Advanced Measurements Tutorial 3 Results Detail Display Repeat three or four times to collect history for these measurements We have collected some history and are ready to view the Results Detail display Enter the Results Detail display for your first channel HUM LFD 1 2 Select the Hum LFD cell of your first channel Choose the Results command button on the Button Bar or click on the cell with the right mouse button or from the View menu choose Results Detail The Results Detail dialog box is similar to Figure 2 46 Results Detail for HUM LFD Channel 2 55 25 MHz Channel Table pumbtest cht Site
141. elect a power line frequency of either 50 or 60 Hz Use Preamp to set the On or Off option buttons to match your equipment setup The Preamp is generally on in low level signal conditions to improve the sensitivity of the measurements Set the Preamp according to the specifications in the 2714 manual The 2715 automatically uses the optimum preamp setting and then resets it back to the value selected by this option button Use Carrier Level Mode to set up the mode used when making carrier level measurements The options are Accurate Frequency and Amplitude Accurate Amplitude Only and Fast Amplitude Only The selection applies to individual carrier level measurements as well as surveys NOTE It is recommended that you use Accurate Frequency and Amplitude for any FCC measurements Selected Channels Group The Selected Channels Group allows you to continue customizing measurements down to the individual channel The categories found under Selected Channels are Carrier to Noise ACL CSO CTB and In Channel Response Edit the individual channels by choosing the Edit Setups command button The dialog box is shown in Figure 3 46 Cable TV RF Measurements Software for Windows User Manual 3 63 Menu Bar Edit Setups for Channel 2 55 25 MHz Gated Noise Bandwidth 4 MHz Auto Auto with Pause oO Single Sweep Gated Test Locations MHz Ret Rel Rel Ren Upper Sie CTB
142. ements require operator input to collect results Table 3 8 lists the measurements that may require operator input the type of input required and the circumstances that cause the operator input to be required Cable TV RF Measurements Software for Windows User Manual Menu Bar Table 3 8 Measurements that require operator input Operator Input Required Turn Carrier Turn On Off Measurements On Off Off On Off Test Signal Carrier to Noise 1 o e Desired to Undesired 2 CSO 1 CTB 1 Cross Modulation 2 ICR 6 5 Hum LF D 3 Modulation Depth 3 Aural Deviation ALL 4 Explanations 1 Auto with Pause or Single Sweep only Change via Measurement Setups from the Configure menu 2 Always prompts 3 Only prompts if the channel is flagged as scrambled in the Channel Table 4 Always prompts you to turn off scrambling as soon at it reaches a measurement that requires the scrambling turned off Will also prompt you to turn the scrambling back on after making all measure ments for that channel 5 Only if this measurementis not made using gated 6 Only if this measurement is made using gated and the channel is flagged as scrambled in the channel table To generate a user defined program UDP that will run unattended select the measurement modes shown in Table 3 9 Desired to Undesired and Cross Modulation always require user intervention they cannot be run unattended in a UDP Table 3 9
143. ent caution 0 Do not pause on measurement error 1 Pause on measurement error Execute VM700A Function on Error Reserved Execute VM700A Function on Alarm Reserved Execute VM700A Function on Caution Reserved Report out RS232 on Error 0 0 Do not report on the RS 232 port on measurement error 1 Report out the RS 232 port on measurement error Report out RS 232 on Alarm 0 Report out RS 232 on Caution 0 Measurement Limits Default Limits F ile ntsc lim Default Audio Limits File Sys Vis Car Level Caution UL 6 Sys Vis Car Level Alarm UL 10 Adj Vis Car Level Caution UL 2 Adj Vis Car Level Alarm UL 3 0 Do not report on the RS 232 porton measurement alarm 1 Report out the RS 232 port on measurement alarm 0 Do not report on the RS 232 porton measurement caution 1 Report out the RS 232 port on measurement caution Edit these from the Configure menu Measurement Limits Can update via the Save As Defaults command button in the Edit Limits dialog box Reserved Edit this in the Summary Limits in the Measurement Limit Dialog box usi Save As Defaults Edit this in the Summary Limits in the Measurement Limit Dialog box usi Save As Defaults Edit this in the Summary Limits in the Measurement Limit Dialog box usi Save As Defaults Edit this in the Summary Limits in the Measurement Limit Dialog box usi Save As Defaults Measurement Setups Edit these param
144. ent execution and storage of results in the 271X NVRAM Later reconnect the 271X to the software for results collection and presentation Define the FCC Field Configure a new worksheet to match the system and testing methods used for the Measurements FCC Post Converter measurements Use File New and set up the worksheet Post Converter Worksheet items listed below Cable TV RF Measurements Software for Windows User Manual D 5 Appendix D FCC Measurements Define the Post Converter D 6 UDP NOTE Measurements taken at the output of the converter require a Channel Table that retains the channel identifier channel number but has the visual carrier frequency for each channel set to the output visual carrier of the converter The procedures below assume that the STD CHT Channel Table is the primary table and the post converter table exists as STD_PC CHT Standard Table Post Converter You must create STD_PC CHT to fit your own needs 1 Worksheet Info Select the Post Converter Channel Table STD_PC CHT in the Worksheet Info dialog NOTE Define the Site name later from the 271X front panel at each test Site 2 Preferences The Pause on New Channel preference can be used to allow manual tuning of the set top converter for each new test channel 3 Measurement Setups Whatever is required for your system and test methods NOTE This worksheet is only used to define the FCC Post Converter UDP and will no
145. ept the switch command 3 tells the switch the destination line in this case it is line 3 This could be any number 13 accepts the destination line 4 tells the switcher the source line in this case it is line 4 This could be any number 13 accepts the line and the switch is complete Cable TV RF Measurements Software for Windows User Manual es a Appendix D FCC Measurements NOTE This chapter emphasizes United States specific applications The methods given in this chapter are suggestions It is your responsibility to comply with FCC requirements This chapter discusses how to perform FCC Headend and Field measurements Use it as a starting point to help you define your own procedures to meet FCC Measurement requirements You need to be familiar with the following concepts m Configuring Worksheets m Defining Measurement Sequences m Generating 2714 2715 UDP m Getting 2714 2715 Stored Results m Importing Exporting Measurement Results m Viewing Results m Using the Clipboard Organizing Worksheets and Measurement Results The FCC testing requirements result in large numbers of measurement results even for modest systems Organizing these results in a reasonable way allows for quick access to the results for verification analysis and reporting The directory structure shown in Figure D 1 is a good example of how to organize FCC performance test results The remainder of this chapter describes how to cre
146. equested skip user requested skip user requested skip no destination channel channel header mismatch Figure 3 30 Imported results messages Use the Configure menu see Figure 3 31 to set up worksheets measurements and test equipment Configure Worksheet Info Test ID Preferences Measurement Sequence Measurement Limits Measurement Setups Connections Figure 3 31 The Configure Menu Worksheet Info edits the Site Channel Table and description for the current worksheet See Figure 3 32 Cable TV RF Measurements Software for Windows User Manual 3 43 Menu Bar 3 44 Worksheet Info Site Description l Channel Table File Name Directories Create Edit Channel Table CAZZI ow b cast cht fc E gt 271x_sw hel ae Save As Default Drives digilog cht eur bg cht E c tek_159438 Figure 3 32 The Worksheet Info dialog box Site The Site combination box defines the location where the measurements are made Only one Site is allowed per worksheet If you change the Site you are queried whether you want to save the worksheet under a new name or overwrite the old Site name If you choose to overwrite the old name all of the history previously collected under the old Site name will now be tagged with the new Site name lt Undefined gt is an acceptable Site name Blank nothing in the field at all is not acce
147. er Level 2nd Aural Carrier Level 2nd Aural Carrier Freq 2nd Aural Carrier Freq Average Power Average Power Carrier to Noise Carrier to Noise Desired to Undesired Desired to Undesired cso cso LCIB View Channels All Channels Selected Channels Selected Channels Available Channels Figure 2 58 Measurements and Channels View Filter dialog box 3 Under the View Measurements group select the Selected Measurements option button Select everything except Carrier Levels and Frequencies Visual Carrier Level Visual Carrier Frequency Aural Carrier Level and Aural Carrier Frequency from the Selected Measurements list box Hint select 2nd Aural Carrier Level then scroll to the bottom of the list Hold down the SHIFT key and click on the last measurement Choose the Unselect command button to remove all of these measurements The only measurements left in the Selected Measurements list box are Carrier Levels and Frequencies Under the View Channels group select the Selected Channels option button Select everything except the first two channels from the Selected Channels list box Choose the Unselect command button to remove these channels Only the first two channels 2 and 3 remain in the Selected Channels list box The Measurements and Channels dialog box now resembles Figure 2 59 Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial
148. er Manual xiii Preface xiv A reference that explains each function of the software and the use of more advanced setup procedures measurements and displays Appendices m A Menu Map to give you a quick overview of what is available to you m Error Warning and Informational Messages m An overview of the Channel Table Editor m How to use the Cable TV RF Measurements Software for Windows application to meet FCC measurement requirements for monitoring a cable system m Additional information about the Cable TV RF Measurements Software for Windows files how to archive worksheets messages and so forth Cable TV RF Measurements Software for Windows User Manual SS sy Installation Each Cable TV RF Measurements Software for Windows Package contains the following m One 34 inch diskette Tektronix part number 063 2498 XX m This manual part number 070 9611 XX Hardware Requirements Minimum computer requirements for the Cable TV RF Measurements Software for Windows to operate properly m MS DOS compatible 16 MHz 386 personal computer with hard drive 486 33 is recommended m MS DOS 5 0 m Microsoft Windows 3 1 NOTE Microsoft Windows NT is NOT recommended Use at your own risk m VGA display m Video Display board for View Picture mode optional Video Blaster recommended m 2 MB of RAM 8 MB recommended m 4 MB of free space on the hard drive m GPIB or RS 232 interface The GPIB hardware
149. erter for the UDP title and select OK This creates the 2714 2715 UDP and loads it into the 271X b Verify that the selected Channel Table STD exists in the 271X This is not done automatically at UDP generation time it must be explicitly done using the Channel Table Loader see Appendix C c Select OK to return to the Worksheet Define the Measurement Sequence for the visual carrier level and level variation 30M cable measurement 1 Set the Test ID for the worksheet to FCC Visual Level Var 30M using the Test ID button on the Button Bar or Test ID from the Configure menu Cable TV RF Measurements Software for Windows User Manual Appendix D FCC Measurements 2 Optionally if any measurement setups or preferences need changing based on system test methods enter the new parameters using Measurement Setups and Preferences from the Configure menu For example the Pause for New Channel preference may have been selected for the pre converter measurements assuming the use of an external preselector Now for the visual level and level variation measurements you are not likely to want to pause on each new channel 3 Choose Measurement Sequence from the Configure menu 4 Begin with an empty sequence by choosing the Clear Sequence command button 5 Define the measurements by choosing the 24 Hour Test command button This selection provides easy selection of the required measurements Carrier Level
150. es a channel table from an instrument See Figure C 26 TDC 10 27214 RFM150 Figure C 26 The Delete dialog box Once an instrument is selected then the dialog box shown in Figure C 27 appears Notice this list is different than the one in Figure C 26 for the From command The From command lists all of the channel tables while the Delete command only lists user created channel tables This prevents accidentally erasing built in channel tables NOTE If the channel table is currently in use by the instrument this command is refused Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor Delete Select Table Figure C 27 The Delete Select Table dialog box NOTE The 2721A will not delete a channel table except from its front panel m Select This command allows you to make a specific channel table in an instrument active First you select the instrument from the Select dialog box Then you select the desired channel table from the displayed list rate 27214 RFM150 Hep Figure C 28 The Select dialog box To update a channel table that is in use do the following steps a Select a channel table other than the in use table that you intend to update b Delete from the instrument the channel table that you intend to update c Load the updated channel table into the instrument d If desired select the updated channel table in the
151. et Header 3 4 Chan Table 3 4 Site 3 5 Test ID 3 5 Worksheet 3 4 Worksheet Info 3 43 UDP 2 78 Y yellow 2 23 3 23 3 32 Index 6 Cable TV RF Measurements Software for Windows User Manual
152. et after making a few measurements 2 20 Figure 2 18 Measurement Execution dialog box 2 21 Figure 2 19 The spreadsheet cells after making a group of measurements ccc cece cece cece eee eee ee eeee 2 22 Figure 2 20 The Results Detail dialog box 006 2 23 Figure 2 21 The Global View of the spreadsheet 2 24 Figure 2 22 The Measurement Sequence dialog box U S A only 2 26 Figure 2 23 The Measurement Sequence dialog box non U S A 2 27 Figure 2 24 The Measurement Sequence dialog box measurements Selected cece cece cece eee e eee eees 2 28 Figure 2 25 The Edit Time Parameters dialog box 2 28 Figure 2 26 The Sequence Measurement Execution dialog box 2 29 Figure 2 27 View Filter Warning dialog box e008 2 30 Figure 2 28 Measurement Sequence results with view filter on 2 30 Figure 2 29 The FCC Pre Converter Measurements dialog box 2 32 Figure 2 30 Measurement Sequence dialog box after Auto Selection command and a few additional measurements 6 2 33 Figure 2 31 The Print Setup dialog box ceceeeeees 2 35 Figure 2 32 The Print dialog box 0 cc cece cece recone 2 35 Cable TV RF Measurements Software for Windows User Manual V Table of Contents vi Figure 2 33 The Connections dialog box eee eeeee 2 40 Figure 2 34 The Measurement Setups dialog box
153. eters using the Measurement Setups command from the Configure menu These values are the ones that have been stored using Saved As Default Ext Atten Amp 0 The value in dB of the 2714 external attenuation amplification 2714 2715 Preamp 0 0 off l on TDC 10 Preamp 0 Reserved Power Line Freq 60 60 60 Hz 50 50 Hz Cable TV RF Measurements Software for Windows User Manual Appendix E Files Table E 4 The 271X_SW INI File Cont 271X_SW INI File Carrier Levels Mode 0 Explanation 0 Accurate Frequency and Amplitude 1 Accurate Amplitude only 2 Fast Amplitude only Zero Carrier Pulse Line Reserved Zero Carrier Pulse Field Reserved Zero Carrier Pulse Center Reserved Carrier Noise Mode 0 0 Auto 1 Auto with Pause 2 Gated Noise Bandwidth 4e 006 in Hz CSO Mode 0 0 Auto 1 Auto with Pause 2 Single Sweep 3 Gated CSO Locl 1 25e 006 CSO Loc2 750000 CSO Loc3 750000 CSO Loc4 1 25e 006 CSO LocS5 UNDEFINED CTB Mode 0 0 Auto 1 Auto with Pause 2 Single Sweep CTB Loc1 0 CTB Locl Abs Rel 1 0 Abs 1 Rel CTB Loc2 UNDEFINED CTB Loc2 Abs Rel 1 0 Abs 1 Rel CTB Loc3 UNDEFINED CTB Loc3 Abs Rel 1 0 Abs 1 Rel CTB Loc4 UNDEFINED CTB Loc4 Abs Rel 1 0 Abs 1 Rel CTB Loc5 UNDEFINED CTB Loc5 Abs Rel 1 0 Abs 1 Rel ICR Mode 0 Reserved Must be 0 Cable TV RF Measurements Software for Windows User Manual Appendix E Files Table E 4 The 271X_SW INI File Cont 2
154. ew Channel Table is lt untitled gt Cable TV RF Measurements Software for Windows User Manual 2 45 Advanced Setups Tutorial Worksheet Info Site Description Channel Table File Name Directories Create Edit Channel Table japan_m cht notme cht pumbnew cht pumbnew1 cht pumbtest cht std cht stdofst cht stndrd cht fe E gt 271x_sw help helpold Save As Default Drives c tek_159438 Figure 2 37 The Worksheet Info dialog box used to change the Channel Table 27142715 SW Warning W350 Worksheet has changed Do you wish to save it Figure 2 38 Warning message that the worksheet has changed You are now ready to make measurements using the new Channel Table and worksheet If this Channel Table does not exist in the instruments by name the software will automatically load it as soon as it is needed Configuration Preferences 2 46 There are several different ways to configure the software application that are not directly related to making measurements Find these options in the Configure menu under Preferences From the Configure menu choose Preferences The Preference dialog box looks similar to Figure 2 39 Cable TV RF Measurements Software for Windows User Manual Advanced Setups Tutorial Preferences Measurement History Power Level Units dBmy dBu Measurement Execution C Prompt for Signal Connection
155. figure menu From the Measurement Setups dialog box Configure menu From the Measurement Setups dialog box Configure menu External Attenuation Amplification From the Measurement Setups dialog box Configure menu Preamp Measurements on Channels From the Measurement Setups dialog box Configure menu From the Measurement Sequence Configure menu Cable TV RF Measurements Software for Windows User Manual 3 53 Menu Bar 3 54 Table 3 7 UDP Information loaded into the 271X Cont Parameter Where Edited 1 If the Gated option is selected for one or more measurements and you are trying to send the UDP to a 2714 you are given a warning that Gated is not supported and then allowed to continue with Auto mode If a digital measurement Average Power Desirable to Undesirable or Adjacent Channel Leakage is selected for one or more channels and you are trying to send the UDP to a 2714 or 2715 that does not support digital measurements 2715 if firmware version 09 30 94 or earlier a warning is displayed that digital measure ments are not supported and will be skipped If any of the conditions described in notes 1 or 2 were encountered a summary of the warnings is displayed You will be given a chance continue generating the UDP with the problems handled as indicated by pressing OK or you can quit generating the UDP by pressing CANCEL UDPs are not necessarily fully automated Many measur
156. fined you receive an error message as shown in Figure 2 67 that the value is out of range and you are returned to that cell to re enter an acceptable value 2714 2715 SW Error E315 Number out of range Enter a number between 10 and 70 Figure 2 67 An example of an error message You are free to edit the Alarm and Caution ranges to as tight or loose a specifica tion as desired as long as the value is in the acceptable range and maintains the relationship Alarm Lower Limit lt Caution Lower Limit lt Caution Upper Limit lt Alarm Upper Limit Note that there are different measurements in the Limits file depending on the video standard NTSC or PAL The video standard is set in the Channel Table Practice editing the Limits file by tightening the Alarm and Caution limits on a few measurements and then save it as a new Limits file Remember any change that you make to a Limits file affects all channels and worksheets using that file Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial NOTE When you edit a Limits file the changes affect all worksheets using that Limits file Measurement Limits on page 3 57 discusses the command buttons in this dialog box Edit the Limits File ae Choose the Clear Limits command button This erases all of the old limit values 2 Choose the Get Defaults command button This loads the limit values corresponding to the default Li
157. from the 2715 5 The RF signal type indicator may not appear if both offset frequencies are negative The In Channel Response Frequency range is not available for stored measurements retrieved from the 2714 8 sz sign or d decimal number Z or ZHz frequency Hz in engineering notation kHz or MHz 1 5 Loc A bsolute or R elative RF signal Type RF Exceptions The Results Detail Display generally only gives the results for a single cell the exception to this is for the first six cells the Visual and Aural Carrier Levels and Frequencies These measurements are grouped together into one Results Detail display Also if there are four or more of the measurements made in the last 24 hours then a summary of the Carrier Levels measurements over the past 24 hours is provided The summary includes the total visual carrier level variation and each individual measurement value with a Time Date stamp See Figure 3 19 Cable TV RF Measurements Software for Windows User Manual 3 29 Menu Bar Visual Carrier Level Variation 24 Hour 42 7 Visual Carrier Level dBm d el Figure 3 19 The 24 hour Carrier Summary display Measurement and Select an entire spreadsheet row or column choose the Results command button Channel Summaries or click on the Measurement or Channel Header with the right mouse button then you can access special displays called Channel Summary row selected or Measurement Summary column selected
158. ge guard band is enforced Also Absolute Abs test locations are allowed only in the CTB Measure ment Setup Cable TV RF Measurements Software for Windows User Manual Menu Bar Visual carrier frequency for this channel CSO setup range CTB i range CSO setup range at lt 200 kH ae 0 i 200 kHz ea CTB location range Maximum CTB test location Figure 3 47 CTB CSO measurement results distribution and CSO setup restric tions Command Buttons for the Edit Setups for the Channel XX Dialog Box There are three special command buttons located on the upper right hand corner of the Edit Setups for Channel dialog box They are Get Defaults Save as Defaults and Copy to All Channels Get Defaults The Get Defaults command button takes the default values and places them in the text boxes It also sets the option buttons to the default values The dialog box below appears allowing you to decide what measurements should get the default values See Figure 3 48 Get Defaults Oo In Channel Response O Adjacent Channel Lkg Figure 3 48 Get Defaults dialog box Save As Defaults This command button takes the current entries in the text boxes and selected check boxes and stores them as the default values Load these default values into selected channels using the Get Defaults command button when you are editing the setups for those channels These become the default values whenever a new worksheet is created See Fig
159. han can be contained in a cell on the spreadsheet Also used to summarize individual measurements and channels Global View This is a condensed view of the standard spreadsheet display 2714 2715 Screen Displays a copy of whatis displayed on the 2714 2715 screen Picture The Picture command displays a video picture of what is presently on a given channel Requires video display hardware Measurements and Channels This is a View Filter that determines which channels and measurements are on the Spreadsheet Hides rows and columns on the spreadsheet Measurement Sequence This is a View Filter that displays only those measurements made with the most Results recent Measurement Sequence execution Test ID Results This is a View Filter that displays only cells that have measurements tagged with the currently selected Test ID Row Header Fields This command determines what channel information is given in the row header It can include any combination of the following Channel Number amp Tag P rogram Name Channel Frequency Cable TV RF Measurements Software for Windows User Manual A 1 Appendix A Menu Map Table A 1 Menu Bar menu map Cont Menu Command Description Measure Current Selection Executes measurements for the currently selected cells Executes the currently defined Measurement Sequence Tune to Channel Tunes the instruments to the selected channel Get Stored Results from Retrieves all the
160. he Results Detail Display 1 Move to the In Channel Response measurement for your first channel by choosing the left Worksheet Navigation arrow Note that the Title Bar of the dialog box changes to reflect the different measurement The Results Detail display looks similar to Figure 2 47 Results Detail for In Channel Response Worksheet Navigation Channel 2 55 25 MHz Channel Table std cht Site Tektronix No View Filter is On Measurement Summary Measurement Figure 2 47 The Results Detail dialog box for the In Channel Response measurement for the first channel 2 Move to the In Channel Response measurement for your second channel Choose the Worksheet Navigation down arrow Note that the channel number changes 3 Move to the Hum LFD measurement for your second channel Choose the Worksheet Navigation right arrow 4 Move back to where you started Hum LFD for the first channel Choose the Worksheet Navigation up arrow NOTE The information in the Notes Field is placed there by the equipment making the measurements See Measurement Summary on page 3 27 to decode this information 5 Choose Close to leave the Results Detail Display and return to the work sheet Cable TV RF Measurements Software for Windows User Manual 2 55 Advanced Measurements Tutorial NOTE The active cell in the worksheet is the last cell navigated to in the Results Detail Display Status Report and View Violations Dis
161. hese colors indicate the range of the measure ment results White means that there are no limits assigned to that measurement or no measurements have been made Green means that the measurement is passing Yellow means that the measurement is in the caution range Red means that the measurement has dropped into the alarm state The limits file defines these ranges Limits are covered in Defining Limits on page 2 71 Blue indicates that an error occurred in the measurement making the results invalid All of the results in the cell must be in error for the cell to be blue otherwise the cell will take on the color of the worst case valid measurement Gray cells have no measurement results Any cell that is grayed is either not included in the transfer to the RF instrument or the measurement can not be performed on the channel you cannot take analog measurements on a digital channel or digital measure ments on an analog channel Therefore they cannot have any results Global View Another way of looking at the measurement results is the Global View This display shows all of the measurements for many channels at a time This view does not give numerical results rather only pass warning alarm unknown not defined or error in measurement indications based on the color of the cells Cable TV RF Measurements Software for Windows User Manual 2 23 Basic Tutorial Vis Aur Aur 2nd 2nd a E Car Car Car Aur Aur BE Lev Frq Lev Fre
162. ialog box 6 Enter learners in the File Name text box NOTE The Channel Table Editor automatically adds the cht filename extension 7 Choose the OK command button to save the changes and leave the Save As dialog box Changes are made in your learners cht and not the std cht file 8 Select the first channel and make any changes that might be required for your system 9 Repeat these steps for all channels in your system 10 If any fields are the same for all channels choose the Copy Fields command button from the Button Bar Figure C 9 shows the resulting dialog box Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor Copy Fields to End Selected Fields Channel Width 6 000 2714 2715 Channel Type CATY Channel Width 6 000 2714 2715 2nd Aural Carrier 0 00 Channel Edge 1 250000 2714 2715 Channel Type CATY Scramble No RFM150 Channel Type NTSC Available Fields Aural Offset 4 5 2714 2715 2nd Aural Carrier 0 00 RFM150 2nd Aural Offset None Scramble No C N Bandwidth 4 0 Amplitude Offset 0 0 Dwell Time Short Use White No White Line 0 Figure C 9 The Copy Fields to End dialog box 11 Select all of the fields you want to be the same as the channel that you are editing 12 Choose the OK command button to copy these fields to all channels below it in the channel table 13 If there are any channels that are not in your sy
163. iles not found or The limits files requested in the current worksheet are notin the correct invalid directory are not in the correct format or do not exist Limits files must be in the Limits sub directory of the executable file E312 Error writing 271X_SW INI file Out of disk space or the application has been corrupted E313 Error writing WIN INI file Out of disk space or the file has been corrupted Cable TV RF Measurements Software for Windows User Manual B 3 Appendix B Error Warning and Informational Messages Table B 1 Error Messages Cont Error Number Error Message Explanation E314 Invalid number The text box is expecting either a number or a letter and received the other Retry with valid data E315 Number out of range Enter a number Enter a valid number within the specified range between XX and YY E316 CSO offset fell within CTB range of Change the CSO offset so thatitis outside of the CTB range or change the XX MHz CTB range E317 Site cannot be blank Blank is nota valid Site name Enter a site name or select lt undefined gt E318 Test ID cannot be blank Blank is nota valid test ID Enter a test ID or select lt undefined gt E319 UDP title cannot contain commas or Change the UDP title in the text box to remove the invalid characters semicolons and cannot be blank E320 Undefined measurement ID The measurement ID does not exist E321 Creation and loading of UDP XX failed The UDP could not load Chec
164. ilter off You are back to the standard spreadsheet display NOTE If you define a new Measurement Sequence and run it then turn on the Measurement Sequence Results filter you will see only the results from the last Measurement Sequence not the old one Cable TV RF Measurements Software for Windows User Manual 2 69 Advanced Measurements Tutorial Test ID Results View Filter There are times when you only want to see a subset of the measurements made at a particular site This is when the Test ID Results View filter is useful For example if Pre Converter and Post Converter measurements are made under different Test IDs then they can be viewed separately using the Test ID Results View Filter You have been operating under the Test ID Learner s Permit Now change your Test ID make a few measurements under that ID and look at the results using the Test ID View Filter 1 Choose the Test ID command button on the Button Bar Type Training Wheels in the text box Choose the OK command button Select the Carrier to Noise measurement for the first four channels From the Measurement menu choose Current Selection Pe EON Be er From the View menu choose Test ID Results The results should be similar to Figure 2 63 I gt Tektronix Cable TY RF Measurements Software File Edit View Measure Configure Execute Help Worksheet lt untitled gt Site lt undefined gt View Test ID Filter ie On _ Chan Tab
165. ined and executed a measurement sequence that only measures the Carrier to Noise Ratio for four select channels then the C N measurements for only those four channels are displayed on the spreadsheet when this view filter is on The rest of the measurements are not lost only hidden They are still part of the worksheet and are available as soon as the Measurement Sequence Results filter is off Cable TV RF Measurements Software for Windows User Manual Menu Bar If no measurements on the worksheet are associated with a Measurement Sequence then you will get a warning message see Figure 3 25 telling you that there are no measurement results associated with a Measurement Sequence and the view filter will not be applied 2714 2715 SW Message There are no more measurements for the selected view Removing or resetting view filter Figure 3 25 Warning message The View Filter Status Box has the message View Sequence Filter is On and there is a check mark in front of Measurement Sequence Results in the View menu To turn the view filter off just choose Measurement Sequence Results from the View menu again or choose any other view filter The following is a list of commands disabled when the Measurement Sequence View Filter is on m Import from the File menu m Current Selection from the Measure menu and Meas Sel from the Button Bar m Double click on a cell to make a measurement m Get Stored Results from the 271
166. information is copied also If you chose the As Displayed format only the data in the selected cells along with the Measurement and Channels Headers is copied to the clipboard The result of copying one cell with history using export format into Word for Windows is given in Table 3 2 No View Filter is On D s Displayed Export Format Figure 3 13 The Copy dialog box Table 3 2 The results of copying one cell with history into Word for Windows Worksheet File Site Tektronix Beav erton Channel Table Video Standard Aural Offset ha an Channel Freq Program Carrier to Noise Viol LL UL Notes Peeper dB 2 55 25 54 9 eg 43 08 14 1995 Training 10 35 03 Wheels 2 55 25 61 3 08 14 1995 Training 10 35 01 Wheels 2 55 25 10 1 gt 43 08 14 1995 Training 10 35 00 Wheels 2 55 25 17 4 i 43 08 14 1995 Training 10 34 56 Wheels 2 55 25 61 7 08 14 1995 Training 10 34 06 Wheels Cable TV RF Measurements Software for Windows User Manual 3 19 Menu Bar 3 20 Table 3 2 was created using the following procedure 1 Select one cell from the worksheet Choose copy from the Edit menu Select Export format and include measurement history Choose OK Open the desired Word for Windows document Place the cursor in the desired location in the Word document From the Edit menu choose Paste Pes Ge BN CO ee All the cell information is placed in the document Now convert the raw data to a
167. instrument m Limit Check Limit Check checks all of the channel table data for compati bility with one or more instruments If any problems are found with the channel table data a message box is displayed describing the first problem found See figures C 29 C 30 and C 31 Cable TV RF Measurements Software for Windows User Manual C 25 Appendix C Channel Table Editor C 26 Limit Check O Tpc 10 O 27214 C RFM150 Figure C 29 The Limit Check dialog box CTLOADE Y arning W1101 Multiple channel widths are incompatible with SOME 2714 2715s 1st difference at record 2 Figure C 30 Warning message that multiple channel widths are incompatible with some 2714 and 2715 instruments CTLOADE Message Limit check passed for all specified instruments Figure C 31 Limit Check passed message m Switcher Control String The Switcher Control String command allows you to test the command string entered in the Switcher Control String field for the selected channels When you select this command it runs the command in the Switcher Control String field You can then check your switcher control panel to make sure that the appropriate switches took place Please see Switcher Control String on page C 31 for more information on controlling a switcher m Connections Use the Connections dialog box shown in Figure C 32 to set the GPIB and RS 232 port addresses for the instruments in the Channel Table Editor Thes
168. int Print Setup Figure 2 3 The drop down File menu Single click the left mouse button on the Press 0 word Open This displays the Open dialog box shown in Figure 2 4 Use the Open dialog box to open an existing file O File Name Directories c 271x_sw Cancel example wrk E cA remove wrk E gt 271x_sw try wrk A 7 help G limits Drives E c tek_159438 Figure 2 4 The Open dialog box Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Single click the left mouse button on the Press ESC to close the Open dialog box Cancel command button to close the Open without making any changes dialog box without opening a file Choose from the Mouse Button Bar Single click the left mouse button on the desired command button Example Open the Test ID Dialog Box Keyboard Press ALT the underlined letter from the command button or Press TAB to place the cursor on the Button Bar then press either TAB or the arrow keys to select the command button Be careful using the arrow keys They will scroll off the Button Bar and into the spreadsheet Press ENTER to choose the selected command button Keyboard Single click the left mouse button on the Press ALT i Test ID command button This displays the Test ID dialog box as shown in Figure 2 5 Cable TV RF Measurements Software for Windows User Ma
169. ion The software can show you the picture directly on the computer screen if you have a video board and driver installed see Picture on page 3 34 Use the following procedure to display your first channel 1 Print Optional From the control menu box use Switch To to go to the Windows Program Manager Start your video driver Return to the software application Configure your equipment to provide the desired video signal to the video card in your computer From the View menu choose Picture The picture is displayed on the computer screen To leave the Picture display from the control menu box in the picture window choose Close Or you can hide the picture by clicking anywhere in the software application window Now that you have some data to look at it is time to print out some worksheets and reports 1 2 34 Check your printer setups From the File menu choose Print Setup The Print Setup dialog box appears as shown in Figure 2 31 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Printer Default Printer currently PostScript QMS on tolpd bv58s1 servers LPT1 Specific Printer PostScript QMS on tolpd by58s1 servers LPT1 Orientation Paper Portrait Size Letter 8 172 x 11 in Figure 2 31 The Print Setup dialog box This dialog box is identical to the standard Windows Print Setup dialog box Use the Windows 3 1 User s Guide and on line help for an
170. ions in the Edit Time Parameters dialog box are gray indicating they are not available Choose the OK command button to save the changes and return to the Measurement Sequence dialog box 10 Choose the OK command button to accept the Measurement Sequence The display returns to the worksheet Run the Measurement 1 Choose the Meas Seq command button from the Button Bar or choose Sequence Sequence from the Measure menu The dialog box in Figure 2 26 appears that telling you that the software is running a measurement sequence Sequence Measurement Execution Iteration 1 Executing Carrier Levels and Frequencies measurement on Channel 2 55 25 MHz Figure 2 26 The Sequence Measurement Execution dialog box 2 If you want the Measurement Sequence to stop choose the Cancel command button otherwise allow the sequence to run The Measurement Sequence runs through once It will take a while NOTE You can change to another Windows application while the Measurement Sequence is running When the sequence is complete the software automatically becomes the active window At the end of the Measurement Sequence the dialog box in Figure 2 27 appears Cable TV RF Measurements Software for Windows User Manual 2 29 Basic Tutorial 271472715 SW Warning W357 Q Do you want to turn the Sequence view filter on Figure 2 27 View Filter Warning dialog box 3 Choose the Yes command button Now only the measurements made w
171. is assumed to be National Instruments GPIB PCIIA with version 2 1 1 of the GPIB driver software Tektronix provides an appropriate GPIB board and driver software in the S3FG210 PC GPIB Package If using RS 232 ports make sure that your computer has enough Com Ports NOTE If more than one GPIB board is installed the software must use board GPIBO m Mouse or other pointing device is recommended but not required Cable TV RF Measurements Software for Windows User Manual 1 1 Installation Software Installation If you also have CSS500 installed on your computer the Cable TV RF Measure ments Software for Windows is not required See Appendix E for some special things to consider before installing the software Step by Step Procedure to Install the Cable TV RF Measurements Software for Windows 1 Check the README TXT file on the distribution diskette for additional information This is very important if you are upgrading from a previous version 2 Create the directory on your hard drive where you want the software installed For example to create the directory 271X_SW on the C drive type C lt enter gt Puts you in the C drive CD lt enter gt Puts you at the root of the C drive MKDIR 271X_ SW lt enter gt Creates the software directory CD 271X_SW lt enter gt Changes to the software directory 3 Copy the files from the distribution diskette to the directory created in step 2 For example c
172. ith the Measurement Sequence are visible and the View Filter box says that the Measurement Sequence View Filter is on Figure 2 28 For more informa tion on View Filters see page 2 65 Tektronix Cable TY RF Measurements Software File Edit View Measure Configure Execute Help Worksheet lt untitled gt Site lt undefined gt 3 ia Chan Table pumbtest cht Test ID lt undefined gt Visual Visual Aural Aural cso HUM LFD Carrier Carrier Carrier Frequency dBc z og ial Freq MHz Lev dBc Offset MHz 4 500858 25 Figure 2 28 Measurement Sequence results with view filter on 4 Choose Measurement Sequence Results from the View menu to turn the Measurement Sequence View Filter off and return to a normal display 2 30 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Measurement Sequences You may have noticed a group in the Measurement Sequence dialog box labeled Using Auto Selection Auto Selection These four buttons allow you to quickly set up a Measurement Sequence that might be run on a regular basis The four buttons are FCC Pre Converter FCC Post Converter FCC Headend Msmts and 24 Hour Test You may add other measurements before or after choosing an Auto Selection command button NOTE Non U S A countries have only the 24 Hour Test button available because the rest of the Auto Selection buttons are for making FCC a U S A regulatory agency required measurements Tabl
173. ive frequencies where you want the measurement calculated in the Test Locations text boxes 3 64 Cable TV RF Measurements Software for Windows User Manual Menu Bar CSO Group Select the way you want the CSO measurement performed by selecting Auto Auto with Pause Single Sweep or Gated option Buttons For digital channels only Auto with Pause is available Gated is called in service on the 271X instruments This allows measurements to be made without turning off the channel under test Enter up to five relative test locations for the CSO measurement in the Test Locations text boxes If you are doing a measurement setup for a UDP be sure to to consider how the 271X handles CSO and CTB measurements CTB Group Select the way you want the CTB measurement made using the Auto Auto with Pause or Single Sweep option buttons For digital channels only Auto with Pause is available Enter up to five test locations for the CTB measurement in the Test Locations text boxes Select either the Rel relative or Abs absolute option buttons for each test location Again if you are doing a measurement setup for a UDP be sure to consider how the 271X handles CSO and CTB measurements Distinguishing 2714 CTB and CSO Measurement Results This describes how the software splits the generic 2714 distortion results into separate CTB and CSO results NOTE Early versions of the 2714 firmware 06 05 92 and 01 05 93 had CTB and CSO combined i
174. k the 2714 2715 for adequate UDP NVRAM Space E322 Maximum number of measurements A Worksheet will only hold 16 000 measurements Any measurements stored in Worksheet operation canceled previously made have been loaded Create a new Worksheet or delete some measurements before continuing E323 Maximum amount of clipboard data has Try using the Export command instead of the Copy command to move data been exceeded into other applications or select smaller blocks of data to copy E324 An error occurred while copying data to The clipboard data is invalid Try again the clipboard E325 An error occurred while clearing the The measurements could not be cleared measurement for row XX column XX E326 Select a cell entire column or entire row The Results Detail Display needs to know what information you want select a cell column or row E327 No Limits file selected Selecta Limits file from the combination box before choosing Select Limits File E328 Select at least one measurement and The View Filter will not allow a blank data display Pick atleast one channel for viewing measurement and one channel from the selections E329 No stored results selected Select one of the stored results directory entries from the 271X to export E330 Error initializing help Files are corrupted E331 Only 1 help window may be open ata Close the open help window before trying to open another one The Help time window may be under another window E332 Help topic not found Th
175. ks eos cote Fe ee Se OG ee OE eee eG lee Gee es 3 9 MOVE eas eles es ne ees HE REG See RS ee eR ee a 3 9 SIZE Sls Fores Boies OG sake E e IG Bas Hee A asso oe sR ON 3 10 Minimize os oe ee Oe EE RE ee ER Re Oe N E 3 10 Maximi Ze Winar e Sachs GEE AL a ER oe RR E 3 10 COSC ie eos a ee OS EE RE ee ER ee OR Ge S 3 10 Switch LO 26 355 sas eae ste aes ie ae sae ct eh Radek He ed SE o E 3 10 Men Bar verenin oh FS ss eceiie wiiSee Shasta Seer ore dete Welere see wets We OO 3 11 i a shat secant eed sara AS Ree eed cee oh ete ed te Sate gt eek AS AA Ree ee SE 3 11 Bete ees rte tee ect ton AR ciate a a a Bet Ae Ma ae ee Rok 3 18 A oh APR ACRE R ANCAP MRC ARO BOR RC ACA Rn EnO E SRR ORE RES AP EECA POT REE TRENT REECE 3 21 Measure 22 64 ses tc areas hn eset en Be Ae ard cn Sa ogee et Bite Bs eee 3 38 Configures 3 0 45 36 oid Sead es SR eA ERE ee BA As SINE NR NE Res 3 43 BECUIC 523 08 ste aon fee Oi coe NE E i ee ete ela eet eee Bi oo mite 3 70 Help ii ce Sic Behe ae eR EG SABRE AA ee SS se uN ease Roa A eas 3 70 Button Bai sts tec 3 ie hea esate eae ees eg ERR ig hig ot a a hs 3 72 Appendices Appendix A Menu Map cccccc ccc cccccccccsscsccece A 1 Appendix B Error Warning and Informational Messages B 1 Error Messages ivi tect coh Soin ae Bacco ak ARR a eke wa a A B 1 Warning Messages sisi idan hese ok Bea A ee O das eas B 9 Informational Messages 0 0 0 eee eee B 10 Appendix C Channel Table Editor 0c c cece eee
176. lation E103 RS 232 Write Error Unable to write to the RS 232 device Check Cable and device RS 232 settings E104 RS 232 Read Error Unable to read from the RS 232 device Check Cable and device RS 232 settings E105 RS 232 Timeout device not responding RS 232 device notresponding in sufficient time Device may need to be reinitialized E106 RS 232 port not available for this RS 232 is in use by another application Close all other applications that use application RS 232 E220 Cannot communicate with XX Cannot communicate with specified instrument Check that the settings in the Connections dialog match match the instrument Check that the cabling is correct E221 Unknown 2714 2715 firmware version The firmware version of the 2714 or 2715 is not recognized by the the software and therefore the current operation cannot proceed Obtain the correct firmware version Cable TV RF Measurements Software for Windows User Manual B 1 Appendix B Error Warning and Informational Messages Table B 1 Error Messages Cont Error Number Error Message Explanation E222 Cannot allocate memory for 2714 2715 System running low on memory Try closing other applications stored result E223 Stored results in 2714 2715 are corrupt The results file s in the 2714 2715 are corrupt The results could not be retrieved You may need to delete all stored results from the 2714 2715 E224 Existing 2714 2715 stored results partially Some notall
177. le 1 Choose the Limits command button on the Button Bar or from the Configure menu choose Measurement Limits This displays the Measure ment Limits dialog box as shown in Figure 2 64 Cable TV RF Measurements Software for Windows User Manual 2 71 Advanced Measurements Tutorial Measurement Limits Clear Limits File lt Select Limits File Limits File Summary Limits Save As Defaults Lower Upper Lower Upper Range Caution Caution Alarm Alarm Visual Carrier Level Difference dB 6 0 40 Adjacent Visual Carrier Level Difference dB ig 3 40 Figure 2 64 The Measurement Limits dialog box In the present setup all of the channels have the same Limits file associated with them NTSC LIM Now take a look at the contents of this file or whatever Limits file you might like 2 Select a Limits file from the Limits file combination box the example uses ntsc lim 3 Choose the Edit Limits File command button Figure 2 65 shows the Edit Limits File ntsc lim dialog box Use the vertical scroll bar to display all of the measurement limits 2 72 Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Edit Limits File ntsc lim Open Limits File Get Defaults Seve As Limite Filej Save As Dofauks Clear Limits Range Caution Caution Lower Lower Upper Limit Limit Visual Carrier Level 0 Visual Carrier Frequen
178. le std cht Test ID Training Wheels Carrier to Noise dB Figure 2 63 The results of turning on the Test ID Results filter 7 Choose the Test ID command button on the Button Bar 8 Display the selection of Worksheet Test IDs and select Learner s Permit The Worksheet Test IDs are the Test IDs used in the current worksheet The other list is all of the Test IDs ever used 9 Choose the OK command button to save the change and exit the Test ID dialog box You will only see the measurements that you made under the Learner s Permit Test ID not the Carrier to Noise measurements 2 70 Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Defining Limits Edit a Limits File 10 From the View menu choose Test ID Results to turn the view filter off and return to the normal spreadsheet with measurements collected from both Test IDs displayed Limits files determine how to characterize your measurement results Results can be passing in alarm in caution or have no limits defined You can change the range of these values to suit your own application In fact you can have a different set of limits for every channel For example the premium and the public access channels may have their own unique Limits files First enter a Limits file to see the information it contains NOTE When you edit a Limits file the changes affect all worksheets using that Limits fi
179. le Name Directories c tek_159438 2 Figure 2 73 The Export dialog box 6 Enter a name for the destination file in the File Name combination box The example uses the name bringin wsr 7 Select the OK command button You are returned to the Get Stored Results dialog box as shown in Figure 2 74 Notice that the Site 888 now has the bringin wsr results file associated with it and the Export button is disabled 2 82 Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Get 2714 2715 Stored Results Chan Table Count Results File 128 bringin wsr WWW UY WU UU 238 Figure 2 74 The Get Stored Results dialog box after the selected site results have been exported to a results file 8 Choose the Import Results command button to load the information into the current worksheet Because no Site name is defined for this worksheet the Site name in the exported file does not match and a message box like the one shown in Figure 2 75 appears 2714 2715 SW Warning W354 Import site Site888 does not match worksheet site Tektronix Beaverton Continue importing results Yes Figure 2 75 A warning that the site name does not match the current site name in the worksheet 9 Choose the Yes command button to continue importing the results The Warning shown in Figure 2 76 then appears Cable TV RF Measurements Software for Windows User Manual 2 83 Advanced Measu
180. le load All measurements are available If this field is marked No then this channel is not loaded in the RF instrument and the RF measurements are not available from the software These cells are grayed out as shown in Figure C 34 Channel 2 was not included in the transfer Global View ae No View Filter is On View Results Detail Help Vis Vis Aur Aur 2nd 2nd ore i a Py Ws Alt H Car Car Car Car Aur Au 8Y9 7 2 st TPR cl c u mod fur Lev Frq Lev Frq Lev Freq N UJO B Sie eel e E ee cers cae Figure C 34 The Global View from the software application Switcher Control String This string with a maximum of 110 characters is used to control a connected switcher it is usually unused when using the Cable TV Software If there are any commands in this string they are executed prior to the software making any measurements This software release supports Pesa and Grass Valley Group GVG switchers and others Both switchers require slightly different control strings The key to the switcher string is that a backslash and the next two numbers are always the ASCII character values in hex For example 02 is control B important for the GVG switcher 27 is Escape important for the Pesa and 13 is Return or Enter All characters can be entered as ASCII strings if desired Another important code is FF This is the Pause Delimiter Whenever this code is encountered the switcher pauses for
181. lick on the cell with the right mouse button 2 Choose the Print command button in the Results Detail Display 3 Leave the Results Detail Display by choosing the Close command button You have just completed the basic Tutorial for the software At this point you should be able to do the following m Select cells See page 2 11 m Enter Worksheet Header information See page 2 14 m Make simple measurements See page 2 18 m Enter the Results Detail Display See page 2 22 m Enter the Global View See page 2 23 m Define a Measurement Sequence See page 2 25 m Runa Measurement Sequence See page 2 29 m Define a Measurement Sequence using the Auto Selection buttons See page 2 31 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial m View what is being broadcast on the computer monitor See page 2 34 m Set up your printer See page 2 34 m Print out assorted reports See page 2 36 The next chapters are about advanced topics and build on the above information If you are not comfortable with any of the above topics please go back and review them before beginning on the advanced topics Cable TV RF Measurements Software for Windows User Manual 2 37 Basic Tutorial 2 38 Cable TV RF Measurements Software for Windows User Manual a Advanced Setups Tutorial This chapter explains how to set up your system to give you only the information that you want and to make th
182. ls must be in frequency order for All channels for the stated instrument must be listed in order of ascending XX record YY visual carrier frequency The stated channel at least is out of order E1061 Too many channels in XX table XX The Channel Table in the specified instrument contains more channels than the application can handle E1062 Too many channels in file XX The Channel Table file has more channels than the application can handle E1063 Too many channels for XX The specified instrument cannot store all of the channels in the current Channel Table E1064 Incomplete channel table information The application read all of the Channel Table information possible but was not able to read all channels E1065 Channel Table XX is unavailable Selectit The read only channel tables in the 2714 2715 are not readable via RS 232 in the YY and try again or GPIB unless they are selected first Select the table via the 2714 2715 menu system and try again E1066 Transfer was incomplete Unknown The channel table was transmitted to the instrument but was not found in Error the instrument when checked at a later time Cable TV RF Measurements Software for Windows User Manual B 7 Appendix B Error Warning and Informational Messages Table B 1 Error Messages Cont Error Number Error Message Explanation E1067 Invalid GPIB Address for XX Check the Connections information for the instrument in the Transfer Con
183. m 2 Press the arrow keys until the window is in the desired position 3 Press ESC to stop moving the window Size Size allows you to change the size of the application window Minimize The Minimize command changes the application to an icon The application is still running but it is no longer the active window The Channel Table Editor stays in exactly the same operating state as when it was converted Cable TV RF Measurements Software for Windows User Manual C 15 Appendix C Channel Table Editor C 16 Menu Bar to an icon This performs the same function as the Minimize button small box with the down arrow on the upper right hand corner of the worksheet See page 3 4 Maximize The Maximize command changes the application from an icon back to the active window This also changes a sized window into one that fills the entire display area Maximize performs the same function as the Maximize command button small box with an up arrow on the upper right corner of the worksheet Exit Closes the Channel Table Editor application window Switch To The Switch To command changes from one running application to another The Menu Bar of the Channel Table Editor see Figure C 12 provides access to all of the Channel Table Editor s functions File Edit View Transfer Help Figure C 12 The Menu Bar File The File menu see Figure C 13 contains the basic windows file manipula tion commands shown below
184. me measurements 2 With those cells still selected choose Copy from the Edit menu The Copy dialog box with the As Displayed option button selected appears as shown in Figure 2 54 No View Filter is On Export Format O include Measurement History Figure 2 54 The Copy dialog box 3 Select the As Displayed option button 4 Choose the OK command button The information from the spreadsheet is copied to the Clipboard Switch to the Excel Application Select a cell in the spreadsheet 3 From the Edit menu choose Paste This loads the new data into the spreadsheet The Table see Figure 2 55 shows the results Notice the differences between the two spreadsheets Figure 2 53 and Figure 2 55 Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Microsoft Excel Sheet Format Data Options Macro Window Help Carrier to Noise dB 61 3 31 6 66 9 54 8 Figure 2 55 The result of the Copy As Displayed pasted into Excel 4 Use Excel to make a graph of the measurement results trend similar to the one shown in Figure 2 56 Use the Excel documentation to help you make the graph if necessary Cable TV RF Measurements Software for Windows User Manual 2 63 Advanced Measurements Tutorial 70 50 40 dB 30 20 10 Carrier to Noise dB 55 3 61 3 67 3 Channel MHz Figure 2 56 Data for the Carrier to Noise Rati
185. measurements and all six are performed for the channel To perform all measurements for a single channel select the entire row Conversely if you want one measurement for all channels select the entire column This is the same as Meas Sel from the Button Bar see page 3 72 For a single cell achieve the same result as Current Selection by double clicking on the cell with the left mouse button For a single row or column achieve the same results by double clicking on the measurement or channel name If at least one of the Carrier Levels and Frequencies measurements Visual Carrier Levels Visual Carrier Frequency Aural Carrier Level Aural Frequency Offset Second Aural Carrier Level or Second Aural Frequency Offset is selected for all analog channels and Average Power measurements are selected for all digital channels the software presents a message to allow the user to do a Carrier Survey instead of a series of individual Carrier Level and Average Power measurements The advantages and drawbacks of selecting the Carrier Survey are as follows Advantages m Faster measurement execution Smaller UDP size allows for more measurements to be loaded before exceeding the UDP size limit Disadvantages m The Pause For New Channel preference will not pause for new channels within the survey m All measurement results are tagged with the same date and time m The software display is not updated until the survey is finished You might
186. mits file 3 Select the Visual Carrier Frequency measurement Caution Lower Limit cell Present value is 5 in the example Type 4 Values automatically overwrite Move the cursor to the Caution Upper Limit cell Type Select the Visual Carrier Frequency measurement Alarm Lower Limit cell Enter 20 FAN ww FB Press TAB to move to the Alarm Upper Limit 10 Enter 20 11 Choose the Save As Limits File button to save the file 12 Save this as a new file 13 You are prompted for a new name and the cursor is already in the list box Type in learners 14 Choose the OK command button to leave the Edit Limits dialog box You are back to the Measurement Limits dialog box Attach a Limits Filetoa 1 Select the first channel on the list In the example it is channel 2 Channel 2 Select your file LEARNERS LIM from the Limits list box The selected file appears in the box at the top of the list box 3 Attach the file to the channel Either double click on the file name with the left mouse button or choose the Select Limits File command button The Limits file for channel 2 is now LEARNERS LIM Remove a Limits File from 1 Select your second channel In the example it is channel 3 a Channel Cable TV RF Measurements Software for Windows User Manual 2 75 Advanced Measurements Tutorial Return to the Spreadsheet to See the Results Summary Limits
187. more information than a single cell could hold There are three ways to enter a Results Detail Display for the cell m Single click on the cell using the RIGHT mouse button m Select a cell then choose the Results command button from the Button Bar m Select a cell then from the View menu choose Results Detail Example Results Detail for CSO for Channel 2 1 Select the CSO measurement cell for channel 2 2 Choose the Results command button from the Button Bar See Figure 2 20 for the dialog box 2 22 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Results Detail for CSO Worksheet Navigation Select History Channel 3 61 25 MHz Prev Channel Table digilog cht Site Tektronix Beaverton Nex Measurement Summary No View Filter is On Violated Violated Measurement Lower Upper Limit Limit 56 5 CSO Loc 1 dBc CSO Offset 1 MHz 1 25 CSO Loc 2 dBc 78 9 CSO Offset 2 MHz Z CSO Loc 3 dBc CSO Offset 3 MHz CSO Loc 4 dBc CSO Offset 4 MHz CSO Loc 5 dBc CSO Offset 5 MHz i Figure 2 20 The Results Detail dialog box 3 Scroll to the right to view the Date amp Time and the Test ID for these measurements Choose the Close command button to return to the spread sheet Also see Results Detail Display on page 2 54 Cell Coloring You might have noticed that the cells have different colors They are white green yellow red blue or gray T
188. ms ascribed to the software product THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO PROVIDE REMEDIAL SERVICE WHEN SPECIFIED REPLACE DEFECTIVE MEDIA OR REFUND CUSTOMER S PAYMENT IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES B a Table of Contents Getting Started Operating Basics PROG ACO 6556555 TERANE Ts ES ee Mesa Bie Oe Welcome to Cable TV RF Measurements Software for Windows C st mer SUpport a5 sina ekaa saa Rareras ka A hag ec ha nee wits What is in this Manual 0 0 eee eee Vans taal enti th 552652 oi sas s a avs Sota ve aia tov a ee ties E Wa eed are Wa ere wave Hardware Requirements 0 cece cece eee eee eens Software Installation 20 0 cece cette nets Step by Step Procedure to Install the Cable TV RF Measurements Software for Windows e neea aaa ooh datashcaabas a tea a a E Sew statin Results of the Software Installation 0 0 02 Test Equipment a A a T a ea etna a Sa a Boece ae batten To Install the Equipment 2 0 cece ects Upg
189. must be unique for both the Cable TV Software and the Channel Table Editor 2 40 Cable TV RF Measurements Software for Windows User Manual Advanced Setups Tutorial Configure Measurement Setups There are many different ways that your system can run measurements The Measurement Setups dialog box tells the software how your system needs to be set up in order to make measurements and get the best results There are setup parameters that affect all channels and some that are channel specific From the Configure menu choose Measurement Setups or choose the Setups command button from the Button Bar The Measurement Setups dialog box looks similar to Figure 2 34 Measurement Setups P All Channels alas eri Weta Power Line a External Preamp Frequency Attenuation Amplification On 60 Hz Help _ dB or 50Hz Carrier Levels Mode Accurate Frequency and Amplitude Accurate Amplitude Only Fast Amplitude Only Get Defaults Save As Defaults l Selected Channels Figure 2 34 The Measurement Setups dialog box The All Channels Group Use the 2714 2715 Sub Group to set up a 2714 or 2715 for taking measure ments m External Attenuation Amplification Enter the attenuation or amplification in dB of the test point in this text box For example if the measurements are being made at a 10 dB down test point enter 10 dB m Power Line Frequency This is the power line frequency of you
190. nd changes from one running application to another Switch To can change from the software to Excel to process the data and then back to the software to get more data without closing the software application Cable TV RF Measurements Software for Windows User Manual Menu Bar File New The Menu Bar lists the available menus There are seven menus File Edit View Measure Configure Execute and Help If you are using a mouse click on the word with the left mouse button to open the drop down menu associated with each menu If a mouse is not available then press ALT the underlined letter of the selected menu item to make the drop down menu available For example to get the File menu press ALT f The following sections describe each menu item The File menu see Figure 3 4 controls file manipulation including New Open Save Save As Import Export Print Print Setup and Exit Open Save Save As Print Print Setup Figure 3 4 The File Menu New creates a new worksheet New automatically sets all Measurement Setups and Limits files to defaults not what is in the current worksheet All results in the current worksheet are either saved to that worksheet or deleted New also erases any Measurement Sequence that may have been defined There are several fields in this dialog box see Figure 3 5 m Site Site specifies the location where the measurements take place but there are no defined values tha
191. nd the highest and lowest level across all channels The difference between them is the result Adjacent Visual Carrier Level Difference These calculated results also look at the results of the Visual Carrier Level measurement However the measurement looks at the difference between two channels that are adjacent in frequency NOTE If you have a view filter on so that not all channels are displayed the calculated results do not comply with FCC requirements because the measure ment only looks at the displayed channels Make sure no view filters are on when you want to check these results Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Set the Summary Limits Choose the Limits command button from the Button Bar Figure 2 68 shows the Summary Limits Group in the Measurement Limits dialog box Measurement Limits Channel Limits File l Summary Limits Get Defaults Save As Defaults Visual Carrier Level Difference dB Adjacent Visual Carrier Level Difference dB Clear Limits File lt Select Limits File learners lim ntsc lim Edit Limits File Lower Caution Upper Lower Caution Alarm Upper Alarm Range 0 40 E o Figure 2 68 The summary limits Edit the text boxes as required Choose the Parameters command button to set the window for adjacent channels This dialog box see Figure 2 69 defines what constitutes an adjacent ch
192. ndix F Controlling a 2714 2715 Over a Modem F 4 Cable TV RF Measurements Software for Windows User Manual _ E E Glossary Accuracy The closeness of the indicated value to the true value Adjacent Channel Leakage The power in the channels adjacent to the channel under test that is due to leakage from the channel under test into adjacent channels Aural Deviation The peak FM deviation measured for the selected channel Average Power The integral of the power spectral density of all screen locations between the edges of the channel Carrier Levels and Frequencies Carrier levels is the peak amplitude with the preamp off Carrier Frequencies is the frequency measured against the frequency of the internal counter of the instrument Carrier to Noise The ratio of the carrier to noise amplitude with the default noise floor normalized to 4 MHz relative to the visual carrier peak Cross Modulation The peak fundamental component of 3rd order distortion at the horizontal sync frequency AM measured on the unmodulated visual carrier CSO Composite Second Order Distortion from second order intermodulation distortion CTB Composite Third Order or Triple Beat Distortion from third order intermodulation distortion Desired to Undesired The ratio of the average power of the desired signal to the average power of undesired signals Hum LFD Hum Low Frequency Disturbance is the power line frequency measured on an unmodulat
193. nections menu selection E1068 Channel Table is in use in instrument XX Selecta different table in the instrument before attempting to delete or and cannot be deleted or overwritten overwrite the table E1069 Channel Table name is incompatible Some of the characters in the Channel Table name are inappropriate for the with XX stated instrument For a 2721A only characters A Z 0 9 and underscore are allowed E1070 Channel Tables in the XX are incompat All channel tables in the stated instrument are incompatible with the current ible with this version version of CTLOADE E1071 Channel Table XX already exists Delete When attempting to transfer a channel table to an instrument a channel it first table with the same name was found Delete it from the instrument first E1072 Cannot overwrite an XX NVRAM Fixed When attempting to transfer a channel table to an instrument a fixed table channel table of the same name was found Enter a different name to transfer the table to the instrument E1073 Incompatible second aural offset for XX For the 2714 2715 the second aural offset must be a number within the record YY acceptable range E1074 Incompatible quiet line with XX record Enter a number within range YY Enter a number between XX and YY E1075 Incompatible white line with XX record Enter a number within range YY Enter a number between XX and YY E1076 Incompatible ICR test line with XX Enter a number within range record YY Enter a numbe
194. nel Response O Adjacent Channel Lkg Figure 2 36 The Get Defaults dialog box m Save As Defaults This command button takes the current entries in the text boxes and selections of the option buttons and stores them as the default Measurement Setup values in the Cable TV Software initialization file It only saves as defaults the groups selected in the check The rest keep the current defaults When a new worksheet starts these defaults load automati cally You can also load these defaults into selected channels using the Get Defaults command button when editing the setups for those channels m Copy to All Channels The Copy to All Channels command button takes the settings on the current Edit Setups for Channel dialog box for the selected groups and copies them to all of the channels However if the current channel is digital CTB and CSO setups are copied only to digital channels Similarly if the current channel is analog CTB and CSO setups are copied only to analog channels Cable TV RF Measurements Software for Windows User Manual Advanced Setups Tutorial NOTE For both Save As Defaults and Copy to All Channels the changes take place immediately You do not need to wait until you exit the dialog box Leave the Edit Setups for Channel XX Dialog Box Save all of the changes and leave the Edit Setups for Channel XX dialog box and return to the Measurements Setup dialog box by choosing OK Leave the Measurement Save all
195. nels adjacent to the channel under test This is a headend test with the 2715 connected to the test port of the modulator Select Upper to measure the power in the upper adjacent channel only Lower to measure the lower adjacent channel only or Both to measure both the upper and lower channels CSO Group The measurement options are Auto Auto with Pause Single Sweep or Gated For digital channels only Auto with Pause is available Auto performs this measurement without turning the carrier off Auto with Pause expects the carrier to be turned off and will prompt the operator to do so Single Sweep also expects the carrier to be turned off and will prompt you to turn it off It also performs all of the measurements in one sweep instead of one sweep for each test location Gated measurements are made on a quiet unmodulated line This is only available for the 2715 Enter the frequency locations relative to the visual carrier where this measure ment should be made See Distinguishing 2714 CTB and CSO Measurement Results on page 3 65 for information on how the CSO and CTB measurements are calculated CTB Group The measurement options are Auto Auto with Pause or Single Sweep For digital channels only Auto with Pause is available Auto performs this measurement without turning the carrier off Auto with Pause expects the carrier to be turned off and prompts you to do so Single Sweep also expects the carrier to be turned off
196. nothing to continue the measurement The software might respond with a message to turn off the scrambling if that particular channel has scrambling enabled and the requested measurement requires it When all of the measurements for the channel are finished then another message reminds you to turn the scrambling back on The software might also respond with the Message box shown in Figure 2 15 2714 2715 SW Message O Switch RF signal connection to the 2714 2715 Figure 2 15 Message dialog box This is an optional dialog box warning you to double check your equipment setup The measurement halts until you choose the OK command button To stop the measurement choose the Cancel command button You can turn this message box on or off see Configuration Preferences on page 2 46 Cable TV RF Measurements Software for Windows User Manual 2 19 Basic Tutorial If everything is properly connected select the OK command button The software responds with the dialog box in Figure 2 16 to let you know that it is working on the measurement Measurement Execution Executing Carrier Levels and Frequencies measurement on Channel 3 61 25 MHz Figure 2 16 Measurement Dialog box Again you can cancel the measurement at this point by choosing the Cancel command button The software fills in the first four or six cells for the selected channel There are only four measurements made in the following example because std cht
197. nship violated XX gt YY Caution and Alarm lower and upper limits must be adhere to the relationship Alarm lower limit lt Caution lower limit lt Caution upper limit lt Alarm upper limit E341 Select one or more check boxes Select at least one check box to indicate which item s should be used E1000 Error opening file XX The file is corrupt or notin the proper format E1001 Memory allocation error operation Running low on memory Try closing other applications canceled E1011 Number out of range Enter a number Enter a number between the stated limits between XX and YY E1012 Error writing file XX Possibly out of disk The stated file could not be written space E1013 XX file XX is not valid The stated file is corrupt or of the wrong type E1014 Error initializing help Help files are corrupted E1015 Only 1 help window may be open ata Close the open help window before trying to open another one The Help time window may be under another window E1016 Help topic not found The Help file has been lost Make sure that there is a help sub directory in the 271X_SW executable directory Check to see if there are any hlp files in that sub directory E1017 Error creating window Running low on memory Try closing other applications E1018 Error writing CTLOADE INI file Out of disk space or the application has been corrupted E1019 Error writing WIN INI file File has been corrupted E1020 CTLOADE already running Only one copy of CTLOADE can be run ata time
198. nt executes on this new worksheet the software will automatically select the new channel table in both the test equipment If the named channel table does not exist in the test equipment the channel table is loaded into the equipment before making the measurement The software detects channel table mismatches by comparing the channel table name only It does not compare the actual contents of the channel tables Therefore use caution when editing named channel tables For instance assume the current worksheet is using a channel table named MYSYSTEM CHT and that this table exists in the test equipment Now suppose the channel table is edited using the Channel Table Editor from the Create Edit Channel Table command button on the Worksheet Info dialog box to add channel 78 and then saved under the same name MYSYSTEM CHT Upon returning to the software worksheet notice that the new channel is not present in the spreadsheet Also notice that the new channel will not be present in the MYSYSTEM tables in the test equipment So that even if a new worksheet is created which includes the edited channel table the new channel will still not be accessible in the instru ments for the measurements This is because the software compares channel table names and not contents Use the following guidelines for editing existing channel tables If an existing channel table is edited in any way it is easiest to save it under a different name Then create a new
199. nto a single test called CTB CSO The software keeps CTB and CSO test results separate When a user gets stored results from a 2714 with early firmware the software must make a determination as to whether each CTB CSO result from the 2714 should be treated as a CTB result or a CSO result The paragraphs below describe how the software makes this determina tion based on the value of the test frequency and whether the frequency was specified as relative or absolute Begin with a default CTB and CSO Measurement Setup of CSO 1 25MHZ Rel 0 75MHz Rel CTB OMHz Rel NOTE Older 2714 firmware versions 06 05 92 and 01 05 93 use the combined CTB CSO measurement as the generic distortion measurement Newer firmware versions split CTB and CSO into separate measurements The software still uses the generic distortion measurement for both CSO and CTB This is displayed as CTB in the newer post 01 05 93 2714 firmware Cable TV RF Measurements Software for Windows User Manual 3 65 Menu Bar 3 66 The Measurement Setup of CSO and CTB is done from Measurement Setups in the Configure menu see page 3 62 Since the 2714 uses a single generic distortion measurement to measure both second and third order beats and distinguishes the two only by the specified test locations the software uses the following rule to separate results from the 2714 generic distortion measurement Results measured at an absolute Abs frequency location or
200. nual Basic Tutorial Special Command Button Keyboard Shortcuts 2 8 All Test IDs lt undefined gt Worksheet Test IDs lt undefined gt Figure 2 5 The Test ID dialog box 2 Single click the left mouse button on the Press ESC Cancel command button to close the dialog box without making any changes Many dialog boxes have two special command buttons OK and Cancel To choose OK from the keyboard press ENTER with anything highlighted except the Cancel button To choose Cancel from the Keyboard either press ESC or press TAB until the Cancel command button is highlighted then press ENTER Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Scroll Through the Spreadsheet Mouse Either Click on the left right up or down scroll arrows in the Vertical or Horizontal Scroll Bar with the left mouse button This scrolls the spreadsheet one cell at a time or Click on the scroll box in the Vertical or Horizontal Scroll Bar with the left mouse button then hold down the left mouse button and drag the scroll box to the desired position Release the mouse button Keyboard Place the cursor in the spreadsheet Use the arrow keys if you are on the Button Bar or ESC if you are on the Menu Bar Use the arrow keys to scroll the spreadsheet to the desired position The spreadsheet display will move every time you move to a cell that is off screen The HOME END
201. nywhere in the row and or channel in the Measurement or Channel press SHIFT spacebar Header To Select an Entire Column Place the cursor anywhere in the column and press CTRL spacebar Selecting an Entire Spreadsheet Mouse From the Edit menu choose Select All or Click on the upper left cell where the Channel and Measurement Headers intersect with the left mouse button Keyboard Cable TV RF Measurements Software for Windows User Manual Press CTRL SHIFT Spacebar 2 13 Basic Tutorial Set Up a Worksheet 2 14 Enter a Site and Description NOTE From now on the act of selecting cells is referred to as Select XX cells from the spreadsheet where XX defines the exact cells needed Create a new worksheet for practice There are four parts to a worksheet definition Site Test ID Channel Table and Worksheet name The Worksheet is the main file that stores everything Each Worksheet may only have one Site and one Channel Table associated with it If the Channel Table or Site changes the software automatically gives you the option to start a new worksheet or rename the Site in the current worksheet 1 From the File menu select New If there was a worksheet already defined the following Warning dialog box Figure 2 9 is displayed 2714 2715 SW Warning W350 Worksheet has changed Do you wish to save it Figure 2 9 Warning dialog box 2 Do not save the old worksheet choos
202. o for four channels 5 Switch back to the software Using Export Use Export when you want to save the results to a file instead of just to the clipboard This is useful for archiving the measurement results without needing to save all of the files necessary to archive an entire worksheet 1 From the File menu choose Export The Export dialog box looks similar to Figure 2 57 File Name Directories c 271x_sw ck E gt 271x_sw help G limits Drives c tek_159438 Figure 2 57 The Export dialog box 2 64 Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial View Filters Measurements and Channels View Filter 2 The worksheet name with a wsr extension is automatically inserted in the File Name combination box If you want a different filename type it in the combination box 3 Select Include Measurement History 4 Choose the OK command button to export the data to a file 5 Clear the worksheet include history to be ready for the next exercises There may be times when you do not want to see the entire list of measurements and channels on the spreadsheet rather only the few that you are working with at the moment Cut the spreadsheet down to only the interesting cells through the use of three view filters They are Measurements and Channels Sequence Results and Test ID These filters hide any measurements results that you are not cur
203. o start the Channel Table Editor select Channel Table Editor from the Execute menu or Create Edit Channel table from the Worksheet Info dialog box of the Configure menu The Create Edit Channel Table command button calls the Channel Table Editor It can be called independently from the Program Manager using CTLOADE EXE NOTE When starting from the Worksheet Info dialog box of the software it is not good practice to type a channel table name into the Worksheet Info dialog box before going into the Channel Table Editor Select a name from the list provided You can change channel tables once you have entered the Channel Table Editor Always include the cht filename extension The results with the standard channel table std cht loaded are in Figure C 1 Channel Table Editor std cht File Edit View Transfer Help Visual or Channel 2714 pemis0 Aural 2214 2715 RFM150 Program Tag Center Freq Width Edge 2715 Second Second E Channel H MH MHz MHz Tope 55 250000 1 250000 CATY 61 250000 1 250000 CATY 67 250000 1 250000 CATY 77 250000 1 250000 CATY 83 250000 1 250000 CATY 91 250000 1 250000 CATV 97 250000 1 250000 CATY i 0 00 None ji m Figure C 1 The main window of the Channel Table Editor with std cht loaded C 2 Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor Create a New Channel Table Use the following p
204. obal View by selecting a cell row or column and clicking the right mouse button You could also use the View Results Detail command button Access the Status Report from the Global View by clicking the right mouse button at the intersection of the Measurement and Channel header 2714 2715 Screen The 2714 2715 Screen command displays a copy of what is presently on the 271X screen displayed traces and readouts NOTE Place the analyzer in Single Sweep mode and be sure the current sweep is complete before requesting a 2714 2715 Screen If the analyzer is not in Single Sweep mode and the current sweep is not complete there may be inconsistencies between the marker readout text the marker positions and the waveforms because the analyzer updates these values asynchronously with respect to the query for the values Cable TV RF Measurements Software for Windows User Manual 3 33 Menu Bar 3 34 Picture Measurements and Channels The Picture command displays a video picture of what is presently on a given channel shows a complete active picture Picture requires an additional video board and associated software driver not included in the software package to operate this application The driver must be active when this command is called The default driver is the Video Blaster The displayed picture is the video source connected to the video board If a driver other than the Video Blaster is used you must edit the 271 X_SW IN
205. oducts other than the 2714 and 2715 Downloading Channel The following are the TDC 10 settings that must be used when downloading Tables toa TDC 10 via channel tables from a PC to a TDC 10 via the TDC 10 RS 232 port RS 232 Status OnLine Baud Rate Same as selected in the Connections dialog box See page C 26 Parity None Flow Control Hard Output Term CR LF or LF Echo Mode Off Use a NULL modem cable between the PC and the TDC 10 Check your PC and TDC 10 manuals to make sure that the cabling is compatible TV1350 EMFP and You cannot download channel tables into the TV1350 or the EMFP When the Channel Tables instrument needs a channel frequency it looks it up and then uses the Tune to Channel command to tune the demodulator to the required frequency Any changes made to a channel table are immediately reflected in the measurements made with the TV1350 or EMFP Channel Tables Provided Channel tables provided with the software are read only since they represent channel tables pre loaded in the equipment 271X TDC 10 and 2721A This prevents you from throwing off the alignment between a worksheet channel table and an instrument channel table The only exception is STDOFST CHT which is not associated with any instrument If you must edit a channel table you should rename it being careful not to use a name from the list below Table C 1 is a list of the standard channel tables provided with the Channel Table Editor
206. of the Worksheet Minimize Button x The minimize button quickly shrinks the application to an icon same as the Control Menu Box command Minimize See page 3 10 Maximize Button E The maximize button makes the application window fill the entire display The restore button replaces it when the window is at its maximum size This is the same as the Maximize command in the Control Menu Box See page 3 10 Restore Button E The restore button returns the application window to it previous size This is the same as the Control Menu Box command Restore The maximize button replaces it whenever the window is not at its maximum size See page 3 9 Worksheet Header The worksheet name channel table site test id and view filter status are all listed in the Worksheet Header see Figure 3 2 Worksheet ex1 wrk Site Tektronix No View Filter is 0 Chan Table std cht Test ID Learner s Permit G view ritor s Un Figure 3 2 The Worksheet Header Worksheet The worksheet name generally ends in wrk It is good practice to make sure that it ends in wrk for file organization Change the name using the Save As command in the File menu see page 3 13 The name stays with the worksheet whenever it is saved Chan Table The channel table determines what channels are available Edit using the Create Edit Channel Table command button in Worksheet Info from the Configure menu see page 3 43 or the Channel Table Editor f
207. of time and collecting the history a trend might become evident The way that the history is saved is best illustrated by an example of the life of a Cell as shown in Figure 2 41 The first column in Figure 2 41 shows three measurements made with Collect History turned on After the third measurement the history is turned off and 4 more measurements are made for a total of 7 The results are shown in the second column You still have the first three measurements stored in history measurements 4 through 6 have been written over and measurement 7 is presently displayed in the cell After the 7 measurement Collect History is turned back on and two more measurements are made for a total of 9 The results are shown in the third column The first three measurements are still there and 7 through 9 are added to the history stack 2 48 Cable TV RF Measurements Software for Windows User Manual Advanced Setups Tutorial Turn history on Make 2 more measurements 9 Stack after 4 more measurements 8 Turn history off here 7 7 3 3 3 2 2 2 Measurements in the stack 1 1 1 Figure 2 41 The life of a cell with Collect History turned on and off If you want to view the history of a measurement one way is to look at the Results Detail Display See the Results Detail on page 3 25 in for more information In this display you can flip thr
208. oftware for Windows User Manual 3 7 Parts of the Worksheet 3 8 Cable TV RF Measurements Software for Windows User Manual a ns Control Menu Box Restore Move The Control Menu Box contains standard Windows commands used to manipu late the application window and change to other applications see Figure 3 3 Restore Move Size Minimize Maximize Close Alt F4 Switch To CtrltEsc Figure 3 3 The Control Menu Box The Restore command returns the software application window to its previous size and position It is often used to change an icon back into a window It will also toggle the window between two different sizes and positions It performs the same functions as the Restore command button small box with both up and down arrows on the upper right hand corner of the worksheet See page 3 4 Move allows different placements of the software window This is equivalent to clicking on the Title Bar and holding down the left mouse button to reposition the display The Move command is only available if the application window is not at its maximum size when the Maximize button in the upper right corner is available To use Move with the keyboard 1 Choose Move Press ALT spacebar then type m 2 Press the arrow keys until the window is in the desired position 3 Press ENTER to redraw the window in its new location or press ESC to cancel moving the window Cable TV RF Measurements Software for Windo
209. ol NONE gt Parity Stop Bits i E Data Bits Delay i E M RS 232 Violations Reporting COM Port B E Baud Rate 9600 gt Figure 3 51 Connections dialog box 2714 2715 Spectrum Analyzer Group The spectrum analyzer group allows you to set the following GPIB and COM Port parameters m GPIB If your system is GPIB enter the address of the 271X in the GPIB Address text box m RS 232 If your 271X uses RS 232 instead of GPIB select the correct COM port 1 4 from the COM Port list box and the correct baud rate from the Baud Rate list box Switcher Control Group This group contains all of the parameters required to communicate with a switcher See the documentation provided with the switcher for how these should be set The Delay parameter is in seconds For more information on using the switcher see Switcher Control String on page C 26 RS 232 Violations Reporting Group This group sets the parameter for a port that will receive error messages from the software if one of the measurements is in a non standard condition Select the COM Port and the Baud Rate For more information on the RS 232 Violations report see page 3 48 Cable TV RF Measurements Software for Windows User Manual 3 69 Menu Bar Execute Help 3 70 Channel Table Editor Contents The Execute menu only contains the Channel Table Editor The Channel Table Editor is a separate application that allows you to edit
210. oll Bar moves the spreadsheet up and down allowing access to all channels You can either click on the up or down arrow boxes to move one step at a time or click and hold the box dragging it to the desired position Cable TV RF Measurements Software for Windows User Manual Parts of the Worksheet Horizontal Scroll Bar Cursor The Horizontal Scroll Bar moves the spreadsheet right and left allowing access to all measurements To use the Horizontal Scroll Bar either click on the right or left arrows to move one step at a time or click and hold the box dragging it to the desired position The cursor can take on one of several shapes depending upon the functions available to it It is a cross when it is in the spreadsheet From there it can select cells request a measurement on a selected cell or go to the Results Detail Display It is an arrow if it is in the menu portion of the display From there it moves through the menu It can also be an hourglass If the cursor is an hourglass the software is proces sing a command and is busy You cannot request any more actions until it turns back into either an arrow or a cross It can be a two or four headed arrow for sizing the application window If no mouse is available the cursor is either a box around a cell or command button reversed text on the command line reversed cells in the spreadsheet or a two or four headed arrow for sizing the window Cable TV RF Measurements S
211. option and using Export is Export sends data to a named file Copy copies the data to the clipboard Cable TV RF Measurements Software for Windows User Manual 3 15 Menu Bar 3 16 Print Print sends the spreadsheet to the printer See Figure 3 10 The Setup command button is identical to choosing Print Setup from the File Menu Printer Default Printer QMS PS 2200 on LPT1 l Print Range O Expand Columns J m Print Quality i B Copies C Print to File O Collate Copies Figure 3 10 The Print dialog box The Print dialog box allows you to print the worksheet using normal or Expand Columns Not using Expand Columns prints out the measurement results cells just as they are shown in the worksheet The main concern with using this method is that some cells will only display summary or worst case values You may need more information Printing using Expand Columns fills in all cells that would otherwise only print summary or worst case values with detailed measurement results The main concern with using this format is that it produces very large reports See Table 3 1 What is printed from each cell in the expanded mode is all of the results that you would normally find in the Results Detail display For example a single CTB or CSO column in the display format grows to 10 columns Since printing using Expand Columns creates such a large printout it is recommended that you use the Measurements and
212. opy the files from the B drive to C 271X_SW Insert the distribution diskette into the B drive Type XCOPY B lt enter gt Copies everything from the B drive into the current directory C 271X_SW 4 Install the software NOTE After running INSTALL BAT you may remove the INSTALL BAT and SETUPCSS EXE files to save disk space From the directory created in step 2 execute the INSTALL BAT batch file Type INSTALL BAT lt enter gt This batch file creates all the program files and directories required by the software 5 Create the Windows Program Group and Program Items Enter Windows then follow the Windows Program Manager instructions to create a Program Group and Program Item for the software application 1 2 Cable TV RF Measurements Software for Windows User Manual Installation Windows Program Items Directories Created List of Files LIMITS Sub Directory HELP Sub Directory 271X_SW EXE Optionally you can create a Program Item for the Channel Table Editor CTLOADE EXE Results of the Software Installation The following lists the icons directories and files created as a result of the software installation 271X_SW EXE Cable TV RF Measurements Software for Windows CTLOADE EXE Channel Table Editor 271X_SW or whatever you chose to call it Sub directories of 271X_SW HELP LIMITS Table 1 1 271X_SW directory 271X_SW EXE EUR_BG CHT MSMTSTUB DLL B CAST C
213. or Windows User Manual Appendix E Files This appendix covers the following topics m Approximate file sizes m Naming conventions m Starting the software with special worksheets m Adding information to the Help files m Using worksheets from older versions of the Cable TV RF Measurements Software for Windows m Using Cable TV RF Measurements Software for Windows and CSS150 together How to archive worksheets m The 271X_SW INI file Approximate File Sizes Table E 1 lists the approximate file sizes Table E 1 Files and their approximate sizes File Contents Size Worksheet File One measurement for each of the 20 measurement 364 K wrk types for 200 channels Channel Table File 200 channels no Switcher Strings 55K cht Limits File All measurements have Caution and Alarms values 14K lim Where appropriate they are for Upper Lower or both Limit values The amount of other information contained in the worksheet such as measure ment notes large worksheet descriptions and so forth reduces the number of possible measurements Cable TV RF Measurements Software for Windows User Manual Appendix E Files Naming Conventions User Aids Start the Software with a E 2 Specific Worksheet The software has very few restrictions on its file names There are defaults and it is good practice to use them to avoid confusion All worksheets should end in wrk and all exported data
214. ou can mix and match fields to match your require ments If no fields are selected then only the fields that are always displayed are shown If you are using the Cable TV RF Measurements Software for Windows you need select only View 2714 2715 Fields View Channel Table Fields View TDC 10 Fields View 2721A Fields gt View RFM150 Fields EX View Control Port Fields Figure C 21 The View Channel Table Fields dialog box Table C 2 The Channel Table fields available from each group 2714 Control 2715 TDC 10 2721A Port none Visual or Center Frequency x X X X X xX Channel Width X Channel Edge X 2714 2715 Channel Type X OO a a o RFM150 Channel Type X a a 2714 2715 Second Aural x tt Offset RFM150 Second Aural ie ae Offset Scramble X X RFM150 Carrier Noise X Bandwidth x lt Cable TV RF Measurements Software for Windows User Manual C 21 Appendix C Channel Table Editor Table C 2 The Channel Table fields available from each group Cont 2714 Control 2715 TDC 10 2721A Port none gt lt gt lt Dwell Time Use White White Line Use ICR X a E Test Pulse Offset X Offset Frequency X Switcher Control String X Transfer The Transfer menu loads the channel table into the test equipment and can also extract or delete channel tables from the instruments The commands available from the Transfer menu are shown in Figure C 22 Transfer To From
215. ough the results to see what the measurement results were in the past a lot like flipping through sheets in a log book Power Level Units Group The option buttons select between Visual Carrier Level and Average Power Level units in dBmV referenced to 1 mV or dBuV referenced to 1 uV Measurement Execution These check boxes select Group m whether to prompt the operator to make the required equipment connections before a requested measurement is executed m whether to pause on a new channel m the type of action to take if any if a measurement falls into an alarm or caution range or has some type of error Prompt for Signal Connection An example of this type of prompt is a dialog box requesting the operator to properly connect the signal under test to the test equipment You must choose the OK button before the measurement will continue This allows you to manually switch the RF signal between the 271X and demodulating equipment using one RF signal tap rather than requiring a splitter Cable TV RF Measurements Software for Windows User Manual 2 49 Advanced Setups Tutorial 2 50 Set the Preferences Make Measurements Using the Defined Preferences Pause on New Channel If you want to be informed that measurements are ready to begin on a new channel select this check box If it is turned on the measure ments stop whenever a new channel is encountered until you choose the OK button One of the things this allows you to
216. ously You enter the number of times in the Run N Times text box and the Repeat Interval in its text box If you only want the sequence to run once enter 1 in the Run N Times box and 0 in the Repeat Interval text box If you are running a Measurement Sequence several times and the Measurement Sequence is longer than the Repeat Interval the Measurement Sequence will simply start the next run as soon as the previous one completes The Repeat Interval must be an integer number of hours The Repeat Interval counts from the Measurement Sequence start time Create 2714 2715 UDP If a Measurement Sequence is being defined for a 271X to use at a remote location then you use the Create 2714 2715 UDP User Defined Program command button This command button converts the software Measurement Sequence into a UDP and immediately loads it into the 271X The instrument can then use the UDP to make measurements later at a remote location You can load the results back into the software application using the Get Stored Results from 2714 2715 command located in the Measure menu see page 3 40 Up to 9 UDPs can be stored in each 271X If the 271X will not load a UDP it may already have 9 UDPs The software allows up to 28 characters with no commas or semicolons see Figure 3 38 Create 2714 2715 UDP UDP Title example Cancel Figure 3 38 Create 2714 2715 UDP dialog box When running a UDP the preferred amplitude units may
217. plays The Status Report gives a numerical impression of how the system is doing as a whole The Status Report lists all of the measurements and channels with the worst measurement results based on the active View Filter The Violations Display is available from the Status Report and it lists all of the measurement Cautions and Alarms 1 Make all of the measurements for the first three channels The worksheet looks like Figure 2 48 NOTE In older 2714 firmware versions anytime you are making a CSO measurement a message that the 2714 is executing a CTB measurement appears on the 2714 display Although unexpected it is correct and only an artifact of the method that older firmware versions of the 2714 use to measure CSO Tektronix Cable TY RF Measurements Software Measure ne Worksheet eam Site Tektronix Beaverton No View Filter is 0 Chan Table std cht Test ID Learner s Permit oer heme Visual Visual Aural Aural 2nd Aural 2nd Aural dtl Carrier Carrier Carrier Frequency Carrier Frequency E Ley dBm Freq MHz Lev dBc Offset MHz Lev dBc Offset MHz is MO 17 4 61 238363 53 iic 11 4 Bice Figure 2 48 The worksheet after making all of the measurements for the first three channels 2 To display the Status Report choose either the Status button from the Button Bar or Status Report from the View menu This displays the Status Report dialog box as shown in Figure
218. pon the functions available If the pointer is a cross it selects cells If it is an arrow it chooses commands If it is an hourglass the software is busy and no new actions are available Title Bar This lists the title of the application running in Windows In this case it is Tektronix Cable TV RF Measurements Software Minimize Button Shrinks the application to an icon z Maximize Button Makes the application window fill the entire display area E Cable TV RF Measurements Software for Windows User Manual 2 3 Basic Tutorial Restore Button Returns the application window to its previous size e Control Menu Box Contains the standard Windows commands Restore Move Size Minimize Maximize Close and Switch To Channel Header Lists channels Measurement Header Lists measurements Vertical Scroll Bar Used to move the spreadsheet vertically Note that the Measurement Header remains along the top as a reference Horizontal Scroll Bar Moves the spreadsheet horizontally Note that the Channel Header remains along the side as a reference Menu Bar Contains all of the software menus File Edit View Measure Configure Execute and Help Button Bar Contains the command buttons The command buttons are shortcuts with equivalents in the Menu Bar The command buttons are Open Save Global Results Status Meas Sel Meas Seq Test ID Setups Limits and Print Spreadsheet Contains all of the cells
219. preferences and measurement setups the 271X may present various prompts for user action during the execution of the UDP 3 Repeat item 2 for the second test Site Remember to enter the new Site name in the 271X a When finished collecting data at the test Sites re connect the 271X to the Cable TV RF Measurements Software for Windows package 2 Open the Worksheet used to create the FCC field test UDPs using Open from the File menu a In the directory list box select FCCTESTS JUL95 FIELD b In the File Name box enter FIELD WRK c Select OK to open the worksheet Check that the Channel Table is STD CHT If it is not select that Channel Table before continuing Also for the importing of results as described below enable Measurement History Select the Collect History button in the Measurement History group of the Preferences dialog box from the Configure menu Cable TV RF Measurements Software for Windows User Manual Appendix D FCC Measurements Retrieve the Stored Results Use the following procedure to retrieve stored results 1 Retrieve the stored FCC field test results from the 271X using Get Stored Results from 2714 2715 from the Measure menu The the software will retrieve all measurement results from the 271X and present a directory of results grouped by Site name and Channel Table name The listed Sites should match the 2 test Sites TP132 and TP146 and the Channel Table names should match the system ST
220. ptable and an error message will appear if blank is in the Site field Channel Table This associates a certain Channel Table with a worksheet The Channel Table is a list of all of the available channels their frequency their program name etc Only one Channel Table is allowed per Worksheet If you want to change the Channel Table start with an empty worksheet Create Edit Channel Table See Appendix C for more information on editing the Channel Table Edit the Channel Tables with caution see the warnings in Appendix C Save as Default This command button allows you to save the Channel Table in the combination box as the default Channel Table When starting the software the default Channel Table loads automatically Cable TV RF Measurements Software for Windows User Manual Menu Bar Description Put any information that might be relevant into this field How the measurements were made the serial numbers of the equipment used who did the measurements and the dates are only examples of things that you might want to load into this field This field is limited to 500 characters Carriage returns are allowed Use this field to meet the FCC documentation requirements by entering m Identification of Instruments make model most recent calibration date m Description of procedures utilized m Statement of qualifications of the person s performing the tests The field is fully editable The information can be copied to th
221. q F Enter the Global View by choosing the Global command button on the Button Bar or from the View menu choose Global View The display should be similar to Figure 2 21 Global View E x Figure 2 21 The Global View of the spreadsheet 2 24 Again the colors tell the health of the system and can give you a good overall feel of how the system is performing You can select a cell on this display and then go to the Results Detail display for that cell by choosing the View Results Detail command button Also by selecting the entire worksheet you can go to the Status Report If you select an entire row you can go to the Channel Summary If you select an entire column you can go to the Measurement Summary Choose the Close command button to close the Global View and return to the spreadsheet Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Define and Use a Measurement Sequence Define a Measurement Sequence Suppose you need to make several measurements on a couple of different channels on a regular basis These measurements and channels are not close enough on the worksheet to select the cells and use Current Selection from the Measure menu To make these measurements you can use a Measurement Sequence A Measurement Sequence is a list of measurements that you define and run whenever you need You can only define one Measurement
222. quence from the Measure menu The Measurement Sequence executes the FCC Headend measurements When the sequence is complete answer Yes to turn on the Measurement Sequence View filter The worksheet displays only the results from the Measurement Sequence just completed the FCC Headend performance tests Choose Global View from the View menu to look for measurement cautions and or alarms Display a Status Report by selecting all of the cells in the Global View and choose the Results Detail command button Optionally print the report using the Print button Choose Close to leave the Status Report Choose Close to leave the Global View Choose Export from the File menu to save the measurement results to a results file for archiving and importing to other report tools m n the directory list box select FCCTESTS JUL95 HEADEND m Inthe File Name enter HEADEND WSR m Choose OK to export the results Optionally use Select All and then Copy from the Edit menu to copy the results to the Clipboard for transfer to other tools such as MS Excel and MS Word Once the results are exported or copied use other data analysis tools such as MS Excel to generate complete FCC Proof Reports Cable TV RF Measurements Software for Windows User Manual Appendix D FCC Measurements Save the Worksheet Use Save As from the File menu to save the worksheet for future reference 1 Choose Save As from the File menu 2 In the directory li
223. r CTB dBc X Cross Modulation dBc X Adjacent Channel Leakage dB X a a In Channel Response dB X o ia Hum LFD x Modulation Depth X X Aural Deviation kHz X X 1 2 Absolute Power Level If 4 or more Visual Carrier Level measurements are being summarized for a single channel This is the difference between the Max and Min values for the measure ments done over time on a given channel The difference between the max and min values over all the channels measured The maximum difference between any two adjacent channels See Summary Limits Group on page 2 76 to set the summary limits and for a definition of adjacent channel Maximum deviation from nominal as defined in the Channel Table The value shown is the measured frequency the violated limits are shown as nominal limit offset as defined in the Limits file Variations always includes both current and all previous data whether history is selected or not Maximum deviation from nominal as defined in the Channel Table Total Hum The Result column is color coded in the same manner as the worksheet Green is passing yellow is Caution red is Alarm and white is no limits defined or no measurements made Blue is an error Cable TV RF Measurements Software for Windows User Manual 3 23 Menu Bar 3 24 Blue indicates that an error occurred in the measurement making the results invalid The cell is blue only if all of the results in
224. r Manual 3 25 Menu Bar Results Detail for CSO Channel 2 55 25 MHz Channel Table std cht Site Tektronix Beaverton No View Filter is On Worksheet Navigation Select History m Led e j Measurement Summary Measurement CSO Loc 1 dBc CSO Offset 1 MHz CSO Loc 2 dBc CSO Offset 2 MHz CSO Loc 3 dBc CSO Offset 3 MHz CSO Loc 4 dBc CSO Offset 4 MHz CSO Loc 5 dBc CSO Offset 5 MHz Violated Violated Lower Upper Limit Limit 54 Figure 3 18 Results Detail dialog box 3 26 You can get to Results Detail many different ways m Click the right mouse button on a cell in the spreadsheet m Press the Results command button on the Button Bar m Choose Results Detail from the View menu m Choose the View Results Detail command button in the Status Report m Click the right mouse button on a cell in the Status Report m Choose the View Results Detail command button in View Violations m Click the right mouse button on a cell in View Violations m Choose the View Results Detail in the Global View m Click the right mouse button on a cell in Global View Worksheet Navigation Use four arrows to move around in the spreadsheet while staying in Results Detail The type of View Filter determines where the channel and measurement navigation arrows take you You cannot move to a channel or measurement that is not being displayed m Up arrow Moves up a channel while staying in the same m
225. r between XX and YY E1077 More than 200 Include in Transfer Only 200 channels in the channel table can be marked include in transfer channels entered for file XX since this is a limitation of all the instruments which support channel tables 500 are allowed as long as 300 are marked not include in transfer These would be used to specify control strings to switchers E1078 Duplicate channel numbers are not Assign unique channel numbers to each channel allowed for XX There are duplicate channel number YYs E1080 Multiple channel widths are incompatible 2714 and 2715 instruments with firmware versions 09 30 94 and earlier will with THIS 2714 2715 1st difference at not accept multiple channel widths Use the Copy Field to End command to record nnn make all widths the same B 8 Cable TV RF Measurements Software for Windows User Manual Appendix B Error Warning and Informational Messages Warning Messages Warning messages tell you when Cable TV Software needs additional informa tion from you before it can continue or that if you continue there may be a loss of information or settings because of the action being taken Table B 2 Warning Messages Warning Number Warning Message Explanation W350 Worksheet has changed Do you wish to Either save your changes or they will be deleted save it W351 Limits have changed Do you wish to Either save the changes or they will be deleted and the Limits file will reve
226. r system m Preamp The Preamp allows increased sensitivity when measuring low level signals Select the On or Off option button to match your measurement needs See the 2714 manual for more information on the correct settings Cable TV RF Measurements Software for Windows User Manual 2 41 Advanced Setups Tutorial Selected Channels Group NOTE The 2715 automatically sets the preamp as required for each measure ment m Carrier Levels Mode These option buttons select how the Carrier Level measurements are made This includes both regular measurements and Carrier Surveys The options are given below Accurate Frequency and Amplitude recommended Accurate Amplitude Only Fast Amplitude Only The Selected Channels Group allows you to customize the measurements down to the individual channel One of the reasons you might want to have different setups for different channels is the inability to turn the carrier off on some channels need to use alternative methods to make some measurements The categories found under Selected Channels are Carrier to Noise ACL CSO CTB and In Channel Response Most of the options are self explanatory for more information please see the Selected Channels Group on page 3 63 To enter the Edit Setups dialog box for channel 2 first double click on channel 2 in the Selected Channels list box or press TAB until the cursor is in the Selected Channels list box Then use the arrow keys to highlight
227. r to Figure 3 45 Measurement Setups All Channels 2714 2715 Pomor Line Ext I A n Attenuation On Haart Amplification n 60 Hz iene Oe oo Carrier Levels Mode Accurate Frequency and Amplitude Accurate Amplitude Only Fast Amplitude Only Get Defaults Save As Defaults Selected Channels 2 3 _ 5 Figure 3 45 The Measurement Setups dialog box All Channels Group The All Channels group allows you to customize measure ments The All Channels group categories include Get Defaults Save As Defaults and 2714 2715 Cable TV RF Measurements Software for Windows User Manual Menu Bar Get Defaults This command button loads all of the previously saved default values into the All Channels group text boxes and option buttons Save As Defaults This command button saves all of the current text box and option button settings as the default values The default values are automatically loaded whenever a new worksheet is created They are also available through the Get Defaults command button 2714 2715 Sub group This group allows you to set up the software to match your equipment setup Use External Attenuation Amplification to enter the necessary attenuation or amplification in dB needed to compensate for losses or gains in your system in this text box For example if a measurement is being made at a 20 dB down test point enter 20 in the text box Use Power Line Frequency to s
228. rading From the MS DOS Based Tektronix Cable TV Software Basic Tutorial 0 0 ccc ccc cece reece eee a eees What Can the Cable TV RF Measurements Software for Windows Do Start the Cable TV RF Measurements Software for Windows Description of the Worksheet 00 0 00 cc eee cece tenes Navigation icccinde nha dw aiene e andes ga E EEEE Set Up a Worksheets esenee tertnine nan ak E toned bpigie wake genes Make Simple Measurements 0 ce eee cee eee eee enn Define and Use a Measurement Sequence 000 cece eee eee Display the Picture Optional 0 eee cee eee eee Print Optional pis rash eae aeei tian n Eel wile Ohne a cand a End of the Tutorial 0 0 0 ee ccc cece tenet ence neenee Advanced Setups Tutorial 0 cece cece cece cece eee eeee Configure Connections 00 cece cece e eens Configure Measurement Setups 0 0 0 c eee eee eee Attach a Different Channel Table 0 00 cece eee eee Configuration Preferences 00 c eect eens REVIEW agi sasha al hs se sts aden hese deh E A ais ies Advanced Measurements Tutorial 0 cece cece eee eeee Reset the Preferences and Worksheet for this Chapter Results Detail Display 0 cece ene eee Status Report and View Violations Displays 0 0 eee eens Copy and EXPO poite 6 ead whee SEES wh SW eS BA Be N
229. re COPY C CATV CHANNELS DBF use that directory instead EXPORTDB Since the source databases may contain a large number of channel tables and test results you may want to export test results only channel tables only or both The utility asks if you want to export any channel tables and then asks if you want to export any measurement data If you answer Y to both then you will be prompted whenever a new channel table is available to be exported and whenever a new measurement data file is available to be exported If you answer N to either then all prompts concerning that category will be skipped and nothing in that category will be exported For the categories you select you can also skip exporting individual channel table or data files The exportdb utility then verifies the integrity of the database files It can export from DOS based Cable TV Software Version 1 1 and later Since there are usually test results from several sites that are based on the same channel table the databases are sorted first by the channel table name and then by the test site When channel tables are exported and a new channel table name is encountered you are told the channel table name and asked for the DOS file name to which you want it exported the default extension is CHT You can then type a new name or press the ESC key to skip exporting the channel table As you type the new name the CHT extension is overwritten unless you press the Insert key
230. re are no Channel Tables in the specified instrument which can be deleted For Transfer From operation there are no Channel Tables in the instrument of any type E1032 GPIB is non functional or not installed GPIB was selected for communicating with the selected instrument butis not installed for Windows E1033 Cannot expand table further 500 The application cannot handle more channels Channels Max E1034 No filename has been defined Save CTLOADE cannot send a Channel Table to an instrument until a filename file first has been defined since this is where the table name is derived from Save the Channel Table to a file first then transfer to an instrument E1035 Channel Table XX contains one or more When opening the channel table file one or more fields were found to not invalid fields Use Limit Check to verify meet the limits or data type requirements Use Limit Check to find out which field s were invalid E1040 Channel Table File Read Error XX The Channel Table is corrupt at the specified line and column E1041 Directory read error in XX Could not read the Channel Table directory in the specified instrument E1042 Attempted write to read only table in XX The specified Channel Table cannot be overwritten Select a new save file name from which the instrument Channel Table name is derived E1043 All channel table slots used in XX Delete Cannotsend a table to the specified instrument since all Channel Table a table first Slots are used E
231. re in Table E 3 Table E 3 Help Topics and Their Associated Files Help Topics File to Edit Adjacent Channel Leakage acl hlp Aural Deviation aurdev hlp Average Power avgpwr hip Carrier Levels and Frequencies levfreq hlp Carrier to Noise Ratio carnoise hlp Cross Modulation crossmod hlp CSO cso hlp CTB ctb hlp Desired to Undesired desundes hlp Cable TV RF Measurements Software for Windows User Manual E 3 Appendix E Files The MSMTSTUB DLL File Using the Cable TV Software CSS500 and CSS150 Together Table E 3 Help Topics and Their Associated Files Cont Help Topics File to Edit Hum LFD hum hlp In Channel Response icr hlp Modulation Depth moddepth hlp Sometimes you may want to use the software for demonstrations or training without any equipment installed It would also be nice if some results even if they are meaningless were generated The software has a dummy MSMT DLL file available that generates somewhat random numbers for results That file is called MSMTSTUB DLL To use it delete the current MSMT DLL file and make a copy of MSMTSTUB DLL called MSMT DLL When you are ready to use instruments again delete MSMT DLL and make a copy of MSMTREAL DLL called MSMT DLL NOTE You cannot make any measurements using instruments while using MSMTSTUB DLL as the MSMT DLL file Cable TV RF Measurements Software for Windows CSS500 and CSS150 are used separately If you have CSS500 you do
232. rement Summary Figure 2 51 The Results Detail display 7 Close this display and return to the View Violations display 8 Close the View Violations dialog box You are now back to the Status Report Notice that you can enter the Results Detail Display from this dialog box 9 Enter the Results Detail Display for your first entry in the Status report Place the cursor anywhere in the first row Either double click with the left mouse button single click with the right mouse button or choose the Results Detail command button to enter the Result Detail Display 10 Close the Results Detail display You are back to the Status Report 11 Close the Status Report and return to the spreadsheet Quick Summary of the The Status Report and View Violations are two nested reports or measurement Status Report and View summaries of what is going on in the worksheet Either can access the Results Violations Detail display for any measurement result of interest Print any of these by choosing the Print command button from the dialog box The view filter also affects these displays See page 2 65 for more information on the view filter If the Include History check box is selected the results include all of the measurement results collected If it is not checked then only the most recent measurement results are included Cable TV RF Measurements Software for Windows User Manual 2 59 Advanced Measurements Tutorial
233. rements Tutorial 2 84 2714 2715 SW Warning W355 Should worksheet site Tektronix Beaverton be changed to import site Site888 Figure 2 76 Warning that the current site name does not match the imported site name 10 Choose the Yes command button to change the worksheet site name to the site from the 271X Choosing No will attribute the imported measurement results to the Site name currently in the worksheet even if it is undefined If the Channel Table in the worksheet does not match the one from the 271X the warning shown in Figure 2 77 appears 2714 2715 SW Warning W356 Import channel table mystd Q does not match worksheet channel table std Continue importing results Yes No Figure 2 77 Warning that the worksheet and the 271X the Channel Tables do not match 11 Choose the Yes command button The dialog box shown in Figure 2 78 appears This dialog box is the result of a mismatch in the Channel Table There will always be mismatches in the Channel Table because the 2714 or 2715 stores only the channel number as the channel ID while the software stores channel number tag program name and nominal visual carrier Cable TV RF Measurements Software for Windows User Manual Advanced Measurements Tutorial Import Results A mismatched channel has been found euere in the import Results File Skip Channel Results l t Results Fil Worksheet Channel gig aai Gia Number 2 2
234. rently interested in The view filters affect most of the other displays such as Global View and Results Detail These displays only show the same measure ment results as the main spreadsheet The view filter affects Copy operations If you cannot see it you cannot select it Export always sends the entire worksheet to the wsr file regardless of the view filter status Note that only one view filter can be on at a time The filter that is on is displayed in the View Filter Status Box in the Worksheet Header If a view filter is on many other operations are locked out For example if Measurement Sequence View Filter is on Meas Sel from the Button Bar is unavailable Set the view filter so that only the first four measurements for the first two channels are in view 1 Select the Carrier Level and Frequency measurements for the first two channels Make the measurements 2 From the View menu choose Measurements and Channels The Measure ments and Channels dialog box appears as illustrated in Figure 2 58 Cable TV RF Measurements Software for Windows User Manual 2 65 Advanced Measurements Tutorial 2 66 Measurements and Channels View Measurements ai Selected Measurements Cancel Selected Measurements Available Measurements Visual Carrier Level t Visual Carrier Level Visual Carrier Freq _ Visual Carrier Freq Aural Carrier Level Aural Carrier Level Aural Carrier Freq Aural Carrier Freq 2nd Aural Carri
235. results are not necessarily lost See Configuration Preferences on page 2 46 Only one measurement on one channel takes place unless you select one of the first six measurements Visual Carrier Level Visual Carrier Frequency Aural Carrier Level Aural Frequency Offset Second Aural Level and Second Aural Frequency Offset Select any of these cells and all six measurements always take place Example Measure Carrier Levels and Frequencies for the First Channel Mouse Keyboard Select the cell by single clicking the left mouse button Place the cursor in the spreadsheet then use the arrow keys to select the cell Execute the measurement Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Either double click with the left mouse button Either choose Current Selection from the choose Current Selection from the Measure Measure menu or choose Meas Sel from the menu or choose Meas Sel from the Button Button Bar Bar A dialog box then appears telling you that the software application is busy making measurements Measurement Execution Executing Carrier Levels and Frequencies measurement on Channel 2 55 25 MHz Figure 2 14 Measurement Execution Dialog box If you chose the wrong measurement or channel choose the Cancel command button to stop the measurement Cancel stops after the current measurement so it does nothing when making a single measurement If everything is fine do
236. rocedure to create a new channel table which is not based on an existing channel table Clear the Channel Table From the File menu choose New This clears the channel information and loads the default values into the table information Edit the Table Information 1 Choose the Edit Table Info command button from the Button Bar This displays the Edit Table Information dialog box as shown in Figure C 2 Edit Table Information Number of Channels e 271472715 Aural Offset 4 500000 MHz Video Standard NTSC PAL M TDC 10 Aural Offset MHz Figure C 2 The Edit Table Information dialog box NOTE Channel table names may contain up to eight characters However the 2721A will only accept channel table names with up to seven characters 2 Enter a name for the new channel table in the Table Name text box The example uses test1 cht 3 Enter the number of channels The example uses 70 4 Edit the 2714 2715 Aural Offset text box with the appropriate value for your system 5 Select the correct Video Standard option button either NTSC or PAL 6 If you will use the channel table with a TDC 10 select the TDC 10 Aural Offset from the drop down list box 7 Choose the OK command button to save the changes and exit the Edit Table Information dialog box Cable TV RF Measurements Software for Windows User Manual C 3 Appendix C Channel Table Editor Edita Channel 1 Start with the fi
237. rom the Configure menu choose Test ID Type Learner s Remote in the text box Choose the OK command button to save the change and return to the spreadsheet The Worksheet Header looks similar to Figure 2 70 lt undefined gt No View Filter is On Learner s Remote Figure 2 70 Worksheet header after being edited for the UDP Define the Measurement Setups and Preferences 1 2 Cable TV RF Measurements Softw From the Configure menu choose Measurement Setups Set the 2714 2715 Power Line Frequency and Preamp option buttons to match your system at the remote location Enter the External Attenuation Amplification in the text box to match the remote location Select a channel from the list box then choose the Edit Setups command button are for Windows User Manual 2 79 Advanced Measurements Tutorial 2 80 10 11 Make the appropriate selections from the various groups Choose the OK command button to return to the Measurement Setups dialog box Repeat as necessary for all channels Choose the OK command button to save the changes and return to the spreadsheet From the Configure menu choose Preferences Select the Collect history option button Do not select any of the check boxes Choose the OK command button to save the changes and return to the spreadsheet Define the Measurement Sequence 1 2 From the Configure menu choose Measurement Sequence Choose the Clear Sequence
238. rom the Execute menu see page 3 70 If you change the channel table name the software asks if you want to save the worksheet as a new one because only one channel table is allowed for each worksheet The channel table file should end in cht 3 4 Cable TV RF Measurements Software for Windows User Manual Parts of the Worksheet Site Test ID View Filter Status Box Channel Header NOTE Use care when editing the channel table See the warnings and explana tions in Appendix C Channel Table Editor for more information Site specifies the location where the measurements take place but there are no defined values that this space must have Change using the Configure menu Worksheet Info see page 3 43 If you change the site you are asked if you want to create a new worksheet because only one site name can be associated with any worksheet If you choose not to create a new worksheet all of the measurement results are then associated with the new site name This could be your name operator number test session identification or whatever is the most appropriate for your particular application The software allows multiple Test IDs for each worksheet An example of why multiple Test IDs would be appropriate for one worksheet is to separate the Pre converter Post converter and 24 Hour results from the same site This box tells if a view filter is on The choices are No View Filter is On View Selected Filter is On
239. rst channel as shown in Figure C 3 Channel Table Editor test1 cht File Edit View Transfer Help Visual or Channel 27147 pemis0 Aural 2214 2715 RFM150 Program Tag Center Freq Width Edge 2715 Second Second E Channel MH M MHz MH2 Tiss 1 250000 CATY 1 250000 CATY 1 250000 CATY 1 250000 CATY 1 250000 CATV 1 250000 CATV f 1 250000 CATY i 0 00 None i Om Figure C 3 The test1 cht Channel Table before beginning the edits 2 Enter the Number Visual Frequency Tag and Program text boxes 3 Fill in the rest of the data by selecting the cell and either selecting from the drop down list box or entering data in the text box See pages C 28 through C 31 for more details on the various channel table fields NOTE If you are using the keyboard use ALT to open the drop down list boxes for the field 1 The 2715 Spectrum Analyzer with either Option 50 or Option 75 installed is capable of frequencies up to 2 15 GHz Frequencies above 1 8 GHz are not supported by the Cable TV RF Measurements Software For frequencies above 1 8 GHz you are limited to the 2715 front panel to create and edit the channel tables C 4 Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor 4 Choose the Save command button to save the changes The application window now looks similar to Figure C 4 Channel Table Editor test cht Help R
240. rt save them to its previous values W352 Attempt to save the Worksheet and exit Memory is getting full Save what you can and exit the software Then the application attempt to re start the application W353 Selected items will be copied to all Whatever was previously in those channels will be overwritten channels Proceed W354 Import site XX does not match worksheet All of the data being imported will be given the current worksheet Site if the site YY Continue importing results import continues W355 Should worksheet site XX be changed to You can change the worksheet Site name to match the import site name If import site YY you do any data previously in the worksheet will be associated with the new Site name W356 Import channel table XX does not match The results will be loaded into any channel numbers that match Data worksheet channel table YY Continue without a channel match in the worksheet is ignored importing results W357 Do you want to turn the Sequence view The Sequence View Filter will allow you to see only the results of the filter on Measurement Sequence and not the entire spreadsheet W358 Do you want to turn measurement history Older data will be overwritten if the Measurement History collection is not collection on turned on W359 If you have edited your worksheet The Channel Table was edited and has changed although the name has not Channel Table changes will not take changed you should put the edited Channel Table in
241. rved PAL Multiburst Line Reserved PAL Multiburst Flag Center Reserved PAL Multiburst Flag Width Center Reserved PAL Multiburst Packet 1 Center Reserved PAL Multiburst Packet 2 Center Reserved PAL Multiburst Packet 3 Center Reserved PAL Multiburst Packet 4 Center Reserved PAL Multiburst Packet 5 Center Reserved PAL Multiburst Packet 6 Center Reserved PAL Sin X X Line Reserved Demodulator Reserved Demod 4 Reserved Must be 4 Attenuation Reserved Input Reserved Level Reserved Trap or SAW Reserved Sound Reserved Zero Reference Pulse Reserved E 10 Cable TV RF Measurements Software for Windows User Manual aa ee ae ee ae Appendix F Controlling a 2714 2715 Over a Modem This section describes a method of using the Cable TV RF Measurement Software for Windows to control a 271X analyzer remotely over modems This section assumes you are using the Windows Terminal program however you can use any equivalent program The Windows Terminal program is used to dial the modem and establish communication with the remote modem and analyzer The terminal program is then exited and the Cable TV Software is started The Software does not know or care whether it is talking to the analyzer directly or if there are modems in between When you are done using the software you exit the software and restart the terminal program to hang up the modems To ensure reliable operation you should use modems that support hardware flow control and error correction
242. s Time Parameters J Run Immediately Start Day ur Minute Run N Times Repeat Interval Figure 3 37 Edit Time Parameter dialog box Run Continuously runs the Measurement Sequence in an infinite loop It runs through the entire Measurement Sequence and then starts over again until you choose the Cancel command button Run Immediately starts the Measurement Sequence whenever the Meas Seq command button or equivalent is chosen If the Run Immediately check box is not selected then the Start Day needs to be selected from the list box Your options are Any or a particular day of the week Any means today If a specific day of the week is selected then the Measure ment Sequence will not start until the internal clock of the computer reaches that day Enter the starting Hour and Minute in 24 hour time that you want it to start in the Hour and Minute text box Cable TV RF Measurements Software for Windows User Manual 3 51 Menu Bar 3 52 Please note that the Start Time is only defined by the internal clock for the PC running the software if the Measurement Sequence is run directly from the software If a UDP is generated and the Measurement Sequence is run from a remote location then the internal clock of the 271X is used as the timing reference All time date stamps for a measurement are from the internal clock of the 271X Use the Run N Times text box if you want the Measurement Sequence not to run continu
243. s and Frequencies are selected for ALL channels 6 Define the Measurement Sequence execution time parameters by selecting the Edit Time Parameters command button 7 Verify that Run Immediately Run 4 Times and Repeat Interval 6 Hours are selected These parameters are set automatically when using the 24 Hour Test button 8 Select OK to return to the Measurement Sequence dialog 9 Create a 2714 2715 UDP from the current Worksheet and Measurement Sequence setup using the Create 2714 2715 UDP command button a Enter FCC Visual Level Var 30M for the UDP title and select OK This creates the UDP and loads it into the 271X b Verify that the selected Channel Table STD is loaded in the 271X This is not done automatically at UDP generation time it must be explicitly done using the Channel Table Loader see Appendix C c Select OK to return to the Worksheet 10 Use Save As from the File menu to save the worksheet for future reference a In the directory list box select FCCTESTS JUL95 FIELD b In the File Name box enter FIELD WRK c Select OK to save the worksheet Cable TV RF Measurements Software for Windows User Manual D 9 Appendix D FCC Measurements Execute the UDPs at Each Test Site Collecting and Presenting D 10 Measurement Results Once the UDPs are defined and loaded the 271X can be removed from the Cable TV RF Measurements Software for Windows package and taken independently to each
244. sary Index Cable TV RF Measurements Software for Windows User Manual i T NNR U me m PEY IN TO e y l TETT UNNA AN Table of Contents iv Cable TV RF Measurements Software for Windows User Manual Table of Contents List of Figures Figure 2 1 The default worksheet display 0eeeeee 2 3 Figure 2 2 The Worksheet Header ccceccscscceees 2 4 Figure 2 3 The drop down File menu eeeeeeeeee 2 6 Figure 2 4 The Open dialog Dox ccc cece c cee eeeeens 2 6 Figure 2 5 The Test ID dialog box cece cece eee eeee 2 8 Figure 2 6 The spreadsheet scrolled to the Cross Modulation column 0 cece cece cece cece rere eens 2 10 Figure 2 7 Example of a cell selected on the spreadsheet 2 11 Figure 2 8 A group of cells selected cc cceccecscceees 2 13 Figure 2 9 Warning dialog Dox cc ccc cece cece cs cceces 2 14 Figure 2 10 The New dialog box cece cceccccccscceees 2 15 Figure 2 11 The Save As dialog box 0 cece eee renee 2 16 Figure 2 12 The Test ID dialog box ccceccecscceces 2 17 Figure 2 13 The worksheet header after filling in all information 2 17 Figure 2 14 Measurement Execution Dialog box 2 19 Figure 2 15 Message dialog box cccccccccccscsccsces 2 19 Figure 2 16 Measurement Dialog box eceeececes 2 20 Figure 2 17 The spreadshe
245. settings DMA Channel NONE IRQ NONE The following table lists how the 271X both GPIB and RS 232 versions needs to be configured Table 1 3 271X Option 03 GPIB Status ONLINE GPIB Address 11 Power On SRQ ON or OFF EOI LF Mode EOI Talk Only Mode OFF 1 This must be a unique address between 0 and 29 Cable TV RF Measurements Software for Windows User Manual Installation Table 1 4 271X Option 08 RS232 Status ONLINE Baud Rate 96001 Data Bits 8 Parity NONE EOL LF Flow Control HARD RTS CTS Echo OFF Verbose OFF 1 Device baud rate is selectable through the software Connections menu Other communications parameters must be set to these values Upgrading From the MS DOS Based Tektronix Cable TV Software If you are not upgrading from the MS DOS based Cable TV RF Measurements Software skip to Tutorial on page 2 1 If you are upgrading from the MS DOS based Cable TV RF Measurements Software you must run the exportdb exe utility to transfer test results and channel tables from the MS DOS based Cable TV RF Measurements Software to the MS Windows based version of the same software The Data Storage This utility is necessary because the DOS and Windows based versions of the Structure software store their data differently The DOS based software stores all test results and all channel table data together in four related database files The Windows based software is oriented around
246. shown in Figure 2 6 Notice the channel 4 is selected using the std cht position of the boxes in the Vertical and Channel Table Notice the position of the Horizontal Scroll Bar boxes in the Vertical and Horizontal Scroll Bar 3 Reverse the steps to return to the spreadsheet to display the first column Cable TV RF Measurements Software for Windows User Manual 2 9 Basic Tutorial Tektronix Cable TY RF Measurements Software File Edit View Measure Configure Execute Help Worksheet lt untitled gt Site lt undefined gt 5 ae Chan Table pumbtest cht Test ID lt undefined gt Cross Adjacent In Channel HUM LFD Modulation Aural Modulation Channel Response Depth Deviation dBc Lkg dBc dB kHz J m m Figure 2 6 The spreadsheet scrolled to the Cross Modulation column 2 10 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Keyboard Press ESC or the arrow keys until the cursor is in the spreadsheet Use the arrow keys to move the cell outline to the desired cell Select a Cell fromthe Mouse Spreadsheet Single click the left mouse button on the desired cell Example Select channel 4 s carrier to noise cell Place the mouse cursor anywhere in the cell Use the arrow keys to move the cell outline to Single click the left mouse button The the desired cell selected cell is outlined The selected cell on the spreadsheet looks similar to
247. software Control Box to start the Excel applica into Excel tion Either go to the Program Manager to start it or go to Excel directly if it is already running 2 Select the first cell in the Excel sheet 3 From the Excel Edit menu choose Paste This loads the new data into the sheet You may need to change the format width of the columns in order to read the data The resulting spreadsheet looks similar Figure 2 53 Microsoft Excel Sheet File Edit Formula Format Data Options Macro Window Help NTSC 4 5 Freq Program Carto Noi Viol Date Time Te 55 25 69 2 HEHE Le 55 25 10 3 HEHHE Le 55 25 6 4 HEHE Le 55 25 2134M HEHHE Le 55 25 49 7 PEHE Le Figure 2 53 The results of pasting the Clipboard data into Excel 4 Use Switch To from the Excel Control Box to return to the software application Cable TV RF Measurements Software for Windows User Manual 2 61 Advanced Measurements Tutorial Paste the Clipboard Data into Excel 2 62 Use the Copy As Displayed Format There is a difference between copying data As Displayed and in Export Format The As Displayed format will not copy any history or header information such as Site or Test ID In this format only the Measurement and Channel Header information follow the cell data This is very useful if you only want to process the data and don t want all of the extraneous information 1 Select the Carrier to Noise cell for the first four channels and make so
248. ssage The summary limits The Parameters dialog box Worksheet header after being edited for the UDP The Create 2714 2715 UDP dialog box The Get Stored Results dialog box The Export dialog box The Get Stored Results dialog box after the selected site results have been exported to a results file Figure 2 75 current site name in the worksheet Figure 2 76 imported site name Figure 2 77 A warning that the site name does not match the Warning that the current site name does not match the Warning that the worksheet and the 271X the Channel Tables do not match ccccccccccceccccces Figure 2 78 Figure 2 79 finished Figure 3 1 for Windows worksheet Figure 3 2 Figure 3 3 Figure 3 4 Figure 3 5 Figure 3 6 Figure 3 7 Figure 3 8 Figure 3 9 Figure 3 10 Figure 3 11 Figure 3 12 Figure 3 13 Figure 3 14 Figure 3 15 Figure 3 16 Figure 3 17 Figure 3 18 Figure 3 19 The Import Results dialog box Message box that tells you that the import procedure is Parts of the Cable TV RF Measurements Software The Worksheet Header cee ee eee ceeee The Control Menu Box 0 cece cece eeeeee The File Menu The New dialog Dox ccc cece cece cece eceecs The Open dialog Dox cc ccc cece eee e ee ceeee The Save As dialog Dox cece ccc cs eee ceees The Import dialog box The Export dialog box The Print dialog bo
249. st ID3 TP 888 File Defaults Channel Table File c 271X_SW STD CHT Video Driver VIDEO KIT grow as you add more Test IDs in the Test ID dialog box The only way to remove Test IDs is to delete them from this file Number of Test IDs in the list Which Test ID is the default The default is loaded for all new worksheets or when the software is first started Test ID names Default Channel Table file and Picture driver This is the Channel Table file used for new worksheets Update this with the Worksheet Info dialog box under the Configure Menu Used by View Picture It can only be edited here The Video Driver should be in the caption displayed by the Program Manager This is the name of the Video Blaster board P references These remember the last settings from the Preference dialog box in the Configure menu Units 0 0 dBmV 1 dBuV History 1 0 Save only most recent measurement 1 Save History Signal Connect 0 0 Do not prompt for signal connection 1 Prompt for signal connection Cable TV RF Measurements Software for Windows User Manual Appendix E Files Table E 4 The 271X_SW INI File Cont 271X_SW INI File Pause on Channel 0 Explanation 0 Do not Pause on new channel 1 Pause on new channel Pause on Alarm 0 0 Do not pause on measurement alarm 1 Pause on measurement alarm Pause on Caution 0 Pause on Error 0 0 Do not pause on measurement caution 1 Pause on measurem
250. st box select FCCTESTS JUL95 HEADEND 3 In the File Name box enter HEADEND WRK 4 Select OK to save the worksheet FCC Field Measurements The FCC field measurement requirements consist of a series of RF measure ments taken on a channel set at various points in the system Since the 271X Spectrum Analyzer can make the required measurements the following describes how to define and use 271X User Defined Programs UDPs from Measurement Sequences to perform the field measurements and how to collect and present the measurement results FCC field testing uses three separate UDPs one for the pre converter perfor mance tests one for the post converter performance tests and one for the visual carrier 24 hour variation and 30M Carrier Level Performance Test Use the three UDPs at each of the required test Sites Note that since the measurement setup parameters for example external attenuation amplification are loaded into the UDPs these parameters are set the same for each test Site If each Site needs different parameters create separate UDPs for each test Site For example the external attenuation amplification setup defines the test point loss for the Carrier to Noise measurements The FCC requires levels measured at the subscriber terminals and at the end of cable drops locations with 0 dB offset Using the UDP measurement method described remove the 2714 or 2715 from the software and take it to the various test Sites for measurem
251. stem select the channel by clicking on the REC cell and choose the Delete command button to remove them 14 From the File menu choose Save to save the edited channel table Cable TV RF Measurements Software for Windows User Manual C 9 Appendix C Channel Table Editor Load a Channel Table into the Test Equipment Cautions Matching Channel Tables in the Software Test Equipment and the Cable System C 10 Now that you have created a custom channel table for your system you must load it into the test equipment 1 From the Transfer menu choose To The dialog box shown in Figure C 10 appears To OPAL AL TDC 10 2721A RFM150 Hep Figure C 10 The To dialog box 2 Select the option button of the instrument that you want to download the channel table to The example selects the 2714 2715 3 Choose the OK command button to download the channel table 4 Repeat these steps for other instruments so that all of the equipment has the same channel table These are the basics that you need to use the Channel Table Editor application with the software application The Cautions section warns you of traps that you can avoid The Overview on page C 15 explains the available commands When creating or using a channel table follow these cautions to ensure that the software functions properly The channel table used by the software must match the channel table in the equipment Also
252. surements and Channels 2 65 3 34 View Used 3 36 memory B 3 B 9 Menu Bar 3 11 Channel Table Editor C 15 menu map A 1 Minimize 3 10 button 3 4 Channel Table Editor C 14 Modulation Depth Glossary 2 mouse button double click left 3 39 right 2 22 2 54 2 58 3 22 3 26 Move 3 9 Channel Table Editor C 14 MSMT DLL E 4 MSMTREAL DLL E 4 MSMTSTUB DLL E 4 N navigation Results Detail 3 26 New 3 11 Channel Table 3 12 Channel Table Editor C 15 Description 3 12 Site 3 11 non US countries measurement sequence changes 2 31 Notes 3 27 event number 3 27 number 3 5 Number of Channels Edit Table Info C 19 maximum C 19 O offset frequency channel information C 30 Open 3 12 Button Bar 3 72 Channel Table Editor C 15 Open Limits File Edit Limits File 3 59 operator input UDP 3 54 organizing D 1 out of bounds limits Channel Table Editor C 11 P Parameters 2 77 pasting into Word for Windows 3 20 Pause Execution 2 50 pause on measurement alarm E 7 Preferences 3 47 Pause on New Channel 2 50 E 7 Preferences 3 47 Pesa switcher control C 31 Picture 2 34 3 34 B 4 ports 2 40 3 68 C 26 Power Level Units 2 49 Preferences 3 47 Power Line Frequency E 7 2714 measurement setups 3 63 Index 4 Cable TV RF Measurements Software for Windows User Manual Index Preamp 2714 measurement setups 3 63 2715
253. t be saved Therefore it is not necessary to define measurement limits at this time 1 Set the Test ID for the worksheet to FCC Post Converter using the Test ID button on the Button Bar or Test ID from the Configure menu 2 Choose Measurement Sequence from the Configure menu 3 Define the measurements by selecting the FCC Post Converter button a Carrier Levels and Frequencies are automatically selected for ALL channels b Select the specific test channels in the Select Channels group using the Select command button These are the system specific test channels chosen to comply with the FCC regulations on number of test channels based on system frequency limit Select the channels that require these additional measurements m Carrier to Noise CTB m CSO Cable TV RF Measurements Software for Windows User Manual Appendix D FCC Measurements m Cross Modulation coherent disturbances Hum c Select the OK button when the selected test channel list is complete The Measurement Sequence dialog box displays the selected FCC Post Con verter measurements 4 Define the Measurement Sequence execution time parameters by selecting the Edit Time Parameters command button a Set to run immediately 1 time b Select OK to return to the Measurement Sequence dialog 5 Create a 2714 2715 UDP from the current Worksheet and Measurement Sequence setup using the Create 2714 2715 UDP button a Enter FCC Post Converter
254. t this space must have Cable TV RF Measurements Software for Windows User Manual 3 11 Menu Bar Description Fill this field with anything that may be relevant to this worksheet For example enter how certain measurements are made and the serial numbers of the test equipment You can copy this information to the Windows clipboard and then attach it to an Excel spreadsheet Carriage returns are allowed in this field Site e Description l Channel Table File Name Directories Create Edit Channel Table eur_il_cht hre cht irc cht japan m cht iai Save As Default japan_m cht limits 2 std cht Drives stdofst cht stndrd cht A c tek_159438 Figure 3 5 The New dialog box m Channel Table This is the Channel Table for the worksheet It defines the channels available their frequencies and other important information You can change or edit the current Channel Table by using the Create Edit Channel Table command button Editing the Channel Table without changing the name is not recommended Please see Appendix C for more information about editing a Channel Table m Save As Default This command button allows you to save the current Channel Table as the default This will cause the selected Channel Table to automatically load every time the software starts i Create Edit Channel Table This command button allows you to start the Channel Table Editor Use the Channel Table Editor
255. t you close the Help window when you are finished The software will allow only one open at a time Close the Help window by choosing Close from the Help Window Control Box or by pressing ALT F4 About The About dialog box see Figure 3 54 gives the version number and other information Choose the OK command button to leave this dialog box Cable T RF Measurements Software Version 1 0 _ Tektronix Inc Copyright 1995 Figure 3 54 The About dialog box Cable TV RF Measurements Software for Windows User Manual 3 71 Menu Bar Results Test ID Limits w c Oo x x 5 o io o lt an 3 ib T 3 72 The same as Open in the File menu on the Menu Bar See page 3 12 The same as Save in the File menu on the Menu Bar See page 3 13 The same as Global View in the View menu on the Menu Bar See page 3 32 The same as Results Detail in the View menu on the Menu Bar See page 3 25 Same as the Status Report in the View menu on the Menu Bar See page 3 22 Same as Current Selection in the Measure menu on the Menu Bar See page 3 39 Same as Sequence in the Measure menu on the Menu Bar See page 3 40 Same as Test ID in the Configure menu on the Menu Bar See page 3 45 Same as Measurement Setups in the Configure menu on the Menu Bar See page 3 62 Same as Measurement Limits from the Configure menu on the Menu Bar See page 3 57 Same as Print in the File menu on
256. tal scroll bar to view this column Test ID The Test ID when the measurement was made Use the horizontal scroll bar to view this column Notes Notes from the test equipment about how a measurement was made Only one note is available for each cell so it is replicated for each measure ment within a cell Table 3 5 lists the notes that the instruments place in the Notes field for each of the different measurements If the measurement cannot be made the instrument a colon and then an event number error appears in the Notes field 271 X E Use the event number to cross reference to the instrument documentation the 27 4 and 2715 Spectrum Analyzer Programmers Manual to find out what failed during the measurement Cable TV RF Measurements Software for Windows User Manual 3 27 Menu Bar 3 28 Table 3 5 Explanation of the notes field Measurement Notes field Meaning Visual Carrier Level sddd d dB ext ofst External attenuation or amplification in dB Visual Carrier Frequency Aural Carrier Level Aural Frequency Offset 2 Average P ower sddd d dB ext ofst External attenuation or amplification in dB Carrier to Noise sddd dZ ddd dZ 2 Noise Frequency and Noise Bandwidth in Hz and 2 dB flags G if gated Desired to Undesired ddd ddZ 2 Noise Bandwidth in Hz and 2 dB flag CSO loc Loc x Stored only Example 1A 3R 4R Loc loc oc 2 Interactive only Beat number location type and
257. ter the window with the software icon in it tion by pressing ALT w highlight the correct window then press ENTER Press the arrow keys to highlight the software icon then press ENTER to start the application The initial display is called a worksheet The worksheet will be blank except for the measurement list running across the top row and a channel list running down the left column 2 2 Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Description of the Worksheet Now is a good time to review the names for the various parts of the worksheet See Figure 2 1 Control menu box Title bar Minimize Tektronix Cable TY RF M t l ftw Restore or ektronix Cable easurements Software ve Menu bar File Edit View Measure Configure Execute Help maximize button open i Button bar Worksheetheader Worksheet lt untitled gt Site lt undefined gt 5 SF i Chan Table pumbtest cht Test ID lt undefined gt No view Fike Un l View filter status box Measurement i Visual Aural Aural T 2nd Aural header Saner Carrier Carrier Frequency gt Frequency rc Cev dBm Freq MHz Lev dBc Offset MHz Lev dBc ffset MHz Vertical scroll bar Spreadsheet Channel header lt Cell Horizontal scroll bar Figure 2 1 The default worksheet display Mouse Pointer The mouse pointer not shown in Figure 2 1 can take many shapes dependent u
258. the Channel 4 Carrier to Noise cell in Figure 2 7 Tektronix Cable TY RF Measurements Software File Edit View Measure Configure Execute Help Worksheet lt untitled gt Site lt undefined gt _Noview Fiteris On Chan Table pumbtest cht Test ID lt undefined gt Average Carrier to Desired to cso CTB Cross A Power Noise Undesired dBc dBc Modulation i dBmy dB dB dBc L Figure 2 7 Example of a cell selected on the spreadsheet Cable TV RF Measurements Software for Windows User Manual Basic Tutorial Select a Group of Cells Note that you can only select adjacent cells rows columns or blocks If non adjacent cells need to be measured as a group use a Measurement Sequence see page 2 25 Mouse Click on one of the corner cells in the desired group Keyboard Press the arrow keys until one corner cell of the desired group is selected Hold down the left mouse button and drag the mouse until all of the desired cells have reversed color When the cell color reverses itindicates selection The first cell does not reverse color Release the left mouse button Hold down the SHIFT button Use the arrow keys to move around the spread sheet until the desired group of cells has reversed color When a cell reverses color ithas been selected The first cell does not reverse color Release the SHIFT button Example Select carrier levels and frequencies for
259. the Menu Bar See page 3 16 Cable TV RF Measurements Software for Windows User Manual aE Appendix A Menu Map This chapter is a quick reference to all of the commands available from the Cable TV RF Measurements Software for Windows Menu Bar along with a brief description of what the commands do Table A 1 Menu Bar menu map Menu Command Description File New Creates a new worksheet All Measurement Setups and Limits files are automatically set to defaults instead of what is in the current worksheet Opens a previously existing worksheet and makes it active Saves all changes made to the present worksheet Saves the present worksheet under a new name Imports data from previously stored results files into the current worksheet Export Exports the worksheet results data out to a wsr file so that applications such as Excel can process the data Print Prints the worksheet on the selected printer Print Setup Sets up the printer Exit Exits the Cable TV RF Measurements S oftware for Windows application Edit Copy Copies the contents of the selected cells into the Window s Clipboard Clear Deletes the current value and or all history for the selected cells Select All Selects all of the cells in the spreadsheet View Status Report The Status Report lists the extremes for all of the measurement results Results Detail The Results Detail dialog box displays more information about a measurement t
260. the cell are invalid If any of the results are valid the cell takes on the color for the worst case valid measure ment If a measurement is invalid lt undefined gt is loaded in the Results Displays The and column replaces the color information on a monochrome display The symbol means that the measurement was in the caution range while means that the measurement was in the alarm range Violated Lower Limit is filled in with the lower limit if it was exceeded or Violated Upper Limit is filled in with the upper limit if the Upper limit was exceeded The 24 Hour Carrier Level Variation is in the Status Report only if there are at least 4 measurements in the last 24 hours on a single channel whether or not history is selected This is the channel with the worst 24 hour Carrier Level variation There are two command buttons View Violations and View Results Detail The View Violations display is explained next Results Detail is explained on page 3 25 because it can be accessed independently View Violations Display the View Violations dialog box by choosing the View Violations command button on the Status Report This dialog box shows all the measurements and channels that are in error They have either a single or double asterisk or Only the individual measurements are in this display See Figure 3 17 Measurements that pass are not shown This display is sorted by Alarm Caution then channel number and finally by
261. the desired channel 2 Press ALT e to enter the Edit Setups for Channel 2 dialog box as shown in Figure 2 35 Edit Setups for Channel 2 55 25 MHz Auto with Pause Gated Noise Bandwidth 4 MHz Auto Auto with Pause Single Sweep Gated Test Locations MHz Ren Rel Rel Rel Ren ben Upper Lower Save As Defaults Both Copy to All Channels Help _ T CTB In Channel Response Auto Auto with Pause C Gated Single Sweep Test Locations MHz 5 ne Test Locations MHz S D nei Ave Me Ren Rel O Abs i Ren Rel Abs p rey nal a Pen C O haO abs Figure 2 35 The Edit Setups dialog box for channel 2 2 42 Cable TV RF Measurements Software for Windows User Manual Advanced Setups Tutorial Carrier To Noise Group Select either the Auto Auto with Pause or Gated in service in the 2715 option button Auto with Pause expects the carrier to be turned off and will prompt you to do so Gated Gated measurements are only available for the 2715 allows you to make the measurements on a quiet or unmodulated line Quiet line is found in the Channel Table See Appendix C page C 30 for more information This allows you to make the measurements without taking the system out of service Enter the bandwidth for the noise calculation in the Noise Bandwidth text box ACL Group Measures the power in the chan
262. the number of channels blank channels are added to the end of the channel table If you decrease the number of channels the channels are deleted beginning from the end of the channel table The maximum number of channels in the channel table is 500 NOTE The maximum number of channels that an instrument can handle is 200 Therefore you can have 200 channels marked for Include in Transfer see page C 31 and 300 more just for switcher information Aural Offset The nominal difference between the visual and aural carriers The 271X uses this parameter Video Standard Either NTSC or PAL TDC 10 Aural Offset The nominal difference between the visual and aural carriers The TDC 10 uses this number m Sort You can sort the channel table three ways By Channel Number Sorts the entire channel table using the channel number as the sort key By Channel Frequency Sorts the entire channel table by frequency By Program Sort the entire channel table by program View This menu allows you to set the Channel Table Editor to only display the fields that are of current interest C 20 Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor m Channel Table Fields This dialog box allows you to only view the channel table fields that are of interest to you and hide the fields that are not relevant Figure C 21 shows the dialog box and Table C 2 lists the fields available under each choice Y
263. the same name as the file you were editing but it would help your file management by calling it Default or something similar so that you can remember what you are using as the default Limits file Cable TV RF Measurements Software for Windows User Manual 3 59 Menu Bar Save As Defaults Limits File Name Directories c 271x_sw limits rts lim al Cancel Figure 3 42 The Save As Defaults dialog box m Clear Limits This command button clears all of the Limits from all of the measurements If this is done by accident you can recover by choosing the Cancel Command button Summary Limits The Summary Limits see Figure 3 43 at the bottom of the Measurement Limits window are global parameters in that they apply to all channels 3 60 Cable TV RF Measurements Software for Windows User Manual Menu Bar Measurement Limits Channel Limits File Clear Limits File OK ntsc lim ntsc lim lt Select Limits File Cancel ntsc lim ntsc lim ntsc lim ntsc lim ntsc lim ntsc lim ntsc lim ntsc lim ntsc lim l Summary Limits Save As Defaults Lower Upper Lower Upper Caution Caution Alarm Alarm Range Visual Carrier Level Difference dB 6 0 40 Adjacent Visual Carrier Level Difference dB pa 0 40 Figure 3 43 Summary Limits dialog box Visual Carrier Level Difference defines the range that the visual carrier can vary across all channels Adjacent
264. think that the software is not working correctly Whether you select individual measurements or the survey the measurements will still be made in the mode specified in the Measurement Setups dialog box Cable TV RF Measurements Software for Windows User Manual 3 39 Menu Bar Sequence Tune to Channel Get Stored Results from 3 40 the 2714 2715 If a measurement sequence is available see Measurement Sequence page 3 48 then the software performs the Measurement Sequence This is the same as the Meas Seq command button on the Button Bar see page 3 72 Note that the computer is not strictly dedicated to the software while performing a Measurement Sequence You can switch to other applications while a Measure ment Sequence is running by sizing the software window so that other applica tion icons are visible Start the Measurement Sequence then click on another icon If you select a DOS based application that does not share memory the sequence will not be able to run until you exit that application For example you can size the software window so that it only takes half of the window and size Excel so that it takes up the other half You can run a Measure ment Sequence in one half and process results from a previous Measurement Sequence on the other half while still monitoring the results from the current Measurement Sequence Tune to Channel tunes the 271X to the selected channel It will also set the Channel Table in
265. tion is Prompt for Signal Connection An example is if you have to change some aspect of your test setup With this option the software stops so that you can make the change The second option is Pause on New Channel It is used when the pre selector needs to be tuned for each channel or some other manual adjustment needs to be done whenever the channels change The third option is a set of options that determine how non standard conditions are treated The non standard conditions include measurement results in Caution Alarm or Error The Caution and Alarm conditions are set through the limits file that is associated with a particular channel The Limit files are set using the Measurement Limits command from the Configure Menu See page 3 57 for more information on the Measurement Limits The Error condition only occurs if a measurement cannot be made or the measurement results from the instrument are out of the allowable range You can handle these conditions using Report out RS 232 or Pause Execution Pause Execution is appropriate for user interactive measurements You can watch it make the measurements and fix any problems that occur If the measurements are stopped because this is set you have two choices OK continues taking measurements Cancel stops taking measurements Cable TV RF Measurements Software for Windows User Manual 3 47 Menu Bar Measurement Sequence 3 48 Report out RS 232 sends a Violation Report out
266. to the software worksheet Get Stored Results from the 2714 2715 This menu item retrieves all the measurement results currently stored in the NVRAM of the connected 271X The results are not erased from the 271X memory after they are retrieved Results are only erased using specific 271X front panel keystrokes It is a good practice to always Import into a new worksheet or one set up specifically for importing so that no information in the current worksheet is inadvertently overwritten 1 gt Y bB From the File menu choose Open Select the remote worksheet used to define the UDP Choose the OK command button From the Measure menu choose Get Stored Results from the 2714 2715 Figure 2 72 shows the dialog box The results are grouped according to Site and Channel Table name Ordering within the directory is alphabetical by site name Count is the actual number of measurement results contained in the group specified by the Site and Chan Table columns Results File is the name of the results file to which a particular group of results has been exported Cable TV RF Measurements Software for Windows User Manual 2 81 Advanced Measurements Tutorial Get 2714 2715 Stored Results Chan Table Count Results File WWW a 238 Figure 2 72 The Get Stored Results dialog box 5 Choose the Export Results button to export some results into a wsr file the example uses Site 888 Figure 2 73 shows the Export dialog box Fi
267. tory Figure 3 14 The Clear dialog box Select All selects all of the cells in the spreadsheet If you are using a mouse you can obtain the same results by clicking the left mouse button on the upper left hand corner of the spreadsheet The View menu see Figure 3 15 allows you to see the spreadsheet data presented in several different ways such as filtered or consolidated into reports Status Report Results Detail Global View 2714 2715 Screen Picture Measurements and Channels Measurement Sequence Results Test ID Results Row Header Fields Figure 3 15 The View Menu Cable TV RF Measurements Software for Windows User Manual 3 21 Menu Bar Status Report Choosing Status Report See Figure 3 16 from the View menu is the same as choosing the Status command button on the Button Bar See page 3 72 A shortcut for getting to this display is to click the right mouse button on the upper left corner of the spreadsheet Any of these methods displays the Status Report for the current worksheet Status Report Channel Table std cht _View Results Detail Site Tektronix Beaverton View Violations No View Filter is On Measurement jaa Violated roe Channel Measurement Lower Upper Limit Limit f Visual Carrier Level dBm Max A Min Visual Carrier Level Diff dB Max Min Age Visual Carrier Level Adj dB Max to Visual Carrier Frequency MHz Max Dev SS07 7
268. tory turned on Any cell that has no results data or is in error condition does not get imported Cells that have more than one measurement will have all valid data imported and the error data results left blank Also results from channels that are not in the channel table of the worksheet are ignored The destination channel must also be of the same type analog or digital as that of the imported data For example suppose the imported data has an Average Power result on channel 63 this means that channel 63 is a digital channel If channel 63 in the worksheet is an analog channel the Average Power destination cell is inactive thus the channel 63 Average Power result will not be imported File Name Directories west c 271x_sw bringin sr Cancel G limits E c tek_159438 Figure 3 8 The Import dialog box Cable TV RF Measurements Software for Windows User Manual Menu Bar Export Export See Figure 3 9 sends the results worksheet data out to a wsr file so that applications such as Excel or other spreadsheets can process the data File Name Directories try1_wesr c 271x_sw c tek_159438 Figure 3 9 The Export dialog box The export file includes all Worksheet Header information If only certain cells need to be exported use Copy under Edit see page 3 19 and copy the data to the clipboard The main difference between using Copy from the Edit Menu Export Format
269. ts on the T Channels If you want to make measurements on the T Channel using the software you need to make a new channel table that includes the T Channels and make the measurements using that channel table C 14 Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor Overview Control Box This section goes through each of the menu commands and gives a brief description of what they are and how they work The control box menu see Figure C 11 contains standard Windows commands used to manipulate the application window and change to other applications Restore Minimize Close Alt F4 Switch To CtrltEsc Figure C 11 The Control Box menu Restore The Restore command returns the Channel Table Editor application window to its previous size and position It is often used to change an icon back into a window It will also change the window between two different sizes and positions It performs the same functions as the Restore command button small box with both up and down arrows on the upper right hand corner of the worksheet Move Move allows different placements of the Channel Table Editor window This is equivalent to clicking on the Title Bar and holding down the left mouse button to reposition the display The Move command is only allowed if the application window is not at its maximum size To use Move with the keyboard 1 Choose Move Press ALT spacebar then type
270. ual Carrier Level Visual Carrier Frequenc Aural Carrier Level Aural Frequency Offset 2nd Aural Carrier Level 2nd Aural Freq Offset Average Power Carrier to Noise Desired to Undesired cso CTB Cross Modulation Adj Channel Leakage In Channel Response Hum LFD Vis Car Level Variation Figure 3 40 The Edit Limits File dialog box NOTE The Visual Carrier Frequency Aural Frequency Offset and Second Aural Frequency Offset are specified in deviation from nominal If you want to edit a Limits file start by renaming a copy of one of the provided Limits files and edit that file rather than one of the provided files Then the original file will remain uncorrupted in case any errors occur during editing The limits file must be in the limits sub directory under the directory that contains the 271X_SW EXE file The limits file should end in lim to help simplify your file management 3 58 Cable TV RF Measurements Software for Windows User Manual Menu Bar You cannot edit the Range or Units columns they are shown for user informa tion only but the limits files are editable Figure 3 41 shows how the upper and lower limits work to flag measurement results Those four columns are editable but they are limited by the range limits If you attempt to enter a value outside those defined by the range limits then you will get an error message that cell will be highlighted and the software will expect you to enter
271. uality 300dpi Copies C Print to File O Collate Copies Figure C 16 The Print dialog box m Print Setup The Print Setup dialog box allows you to configure the printer as required See Figure C 17 This is the same dialog box accessed through the Setup command button in the Print dialog box Specific Printer Options QMS PS 2200 on LPT1 M Orientation Paper Portrait Size Letter 8 1 2 x 11 in O Landscape Source Upper Trey a Figure C 17 The Print Setup dialog box m Exit Closes the Channel Table Editor application Prompts for confirmation if the current channel table has been modified Edit This menu see Figure C 18 contains the commands used to modify the channel table They include Insert Delete Append Copy Fields to End Edit Table Info and Sort Cable TV RF Measurements Software for Windows User Manual Appendix C Channel Table Editor Insert Delete Append Copy Fields to End Edit Table Info Figure C 18 The Edit Menu m Insert The same as Insert from the Button Bar Insert places a blank row into the channel table only the default values are filled in The channel is placed just before the selected active channel m Delete Removes the selected channel from the channel table Same as Delete from the Button Bar This command is only available when a channel has been selected m Append Functions the same as Insert except it adds th
272. ults The remainder of the procedure describes how to use the Test ID Results view filter to prevent this situation 5 At this point all the measurement results for Site TP132 have been loaded into the worksheet Remember that each set of results as generated by the FCC Pre Converter FCC Post Converter and FCC Visual Level Var 30M UDPs has been tagged with a different Test ID The results from each UDP can be viewed separately using the View Test ID Results menu item 6 Select FCC Pre Converter for the worksheet Test ID 7 Use View Test ID Results to enable the Test ID Results view filter 8 The displayed results are now only those generated from the FCC Pre Con verter UDP at test Site TP132 9 The Global View from the View menu can be used to pinpoint trouble channels The Status Report and Results Detail screens can be used to further analyze data Copy from the Edit menu and Export from the File menu can be used to transfer data or results files to other analysis tools 10 Once the results are copied or exported other data analysis tools such as MS Excel or MS Word can be used to generate complete FCC Proof Reports 11 Steps 3 through 10 can be repeated as needed for each set of results Results from other test Sites can be imported and analyzed using the same procedure Cable TV RF Measurements Software for Windows User Manual D 13 Appendix D FCC Measurements D 14 Cable TV RF Measurements Software f
273. ure 3 49 Cable TV RF Measurements Software for Windows User Manual 3 67 Menu Bar 3 68 Connections Save As Defaults Cancel Oo In Channel Response O Adjacent Channel Lkg Figure 3 49 Save As Defaults dialog box Copy to All Channels The Copy to All Channels command button takes all of the settings for the selected measurements and copies the current values to all channels See Figure 3 50 However if the current channel is digital CTB and CSO setups are copied only to digital channels Similarly if the current channel is analog CTB and CSO setups are copied only to analog channels Copy to All Channels LI Ce O csi Cancel O cts O In Channel Response O Adjacent Channel Lkg Figure 3 50 Copy to All Channels dialog box The Connections dialog box see Figure 3 51 sets up the GPIB and RS 232 control connections for the software The allowable GPIB addresses are from 0 to 29 NOTE To ensure proper operation and prevent software conflicts verify that all ports and GPIB addresses are unique and match the addresses set in the instruments The ports and addresses must be unique for both the Cable TV Software and the Channel Table Editor Cable TV RF Measurements Software for Windows User Manual Menu Bar Connections 271472715 Spectrum Analyzer GPIB Address 0 oO RS 232 COM Port i E Baud Rate F Switcher Control Port COM Pott e E Baud Rate 9600 gt Flow Contr
274. us Box This tells how much of the spreadsheet is in view or available The options for the box are No View Filter is On the entire spreadsheet is in view View Selected Filter is On display only selected measurements and channels View Sequence Filter is On display only measurements made with a Measurement Sequence and View Test ID Filter is On display only measurements made with the current Test ID Only measure ments and channels in view are available for measurements Navigation The following section explains how to get around in the software All actions are first explained for the mouse and then for the keyboard If you are familiar with Windows command selection skip to Scroll Through the Spreadsheet on page 2 9 Choose from the Step Mouse Keyboard Menu Bar 1 Single click the left mouse button on the Press ALT the underlined letter in the desired menu from the Menu Bar menu Single click the left mouse button on the Press the underlined letter for the desired desired command command or use the arrow key to scroll then press Enter Cable TV RF Measurements Software for Windows User Manual 2 5 Basic Tutorial 2 6 Example Open a Worksheet Single click the left mouse button on the Press ALT word File on the Menu Bar This displays the drop down File menu as shown in Figure 2 3 New Open Save Save As Import Export Pr
275. utorial Review 2 52 2714 2715 SW Message D Execution paused for next channel Figure 2 45 Message box stating that measurements are paused 5 If necessary tune the preselector then select the OK command button to finish making the measurements Now that you have completed this Chapter you should be able to do the following Review the RS 232 and GPIB connection setups page 2 40 Set up the 271X page 2 41 Set how measurements are made page 2 41 Change to a different Channel Table page 2 45 Select whether or not to collect history page 2 47 Select the Power Level Units page 2 49 Turn on or off the user prompts page 2 49 Please refer to the page after these topics for review if you need more informa tion You can also see the Operating Basics Chapter of this manual for more information Cable TV RF Measurements Software for Windows User Manual _ S ae a Advanced Measurements Tutorial This chapter deals with advanced measurement and display topics View the history of a measurement Copy data to other Windows applications View the violations Use the various View Filters Change and define limits Define a User Defined Program UDP Load the results of a UDP back into the application Reset the Preferences and Worksheet for this Chapter 1 Make Measurements to 1 Collect History Make a new worksheet and call it example wrk Overwrite any old worksh
276. with the Windows based software and select the exported file you want to import and use You can import and use the exported data even if the channel table it is based on is not available for export In order to successfully import that data the new worksheet must be based on a channel table that contains the same channels as the ones the tests were done on and these must be analog channels the DOS based Cable TV software does not support digital channels For ease of analyzing the resultant worksheet the channel Frequency Program Name and Tag fields should also be the same Cable TV RF Measurements Software for Windows User Manual 1 7 Installation 1 8 Cable TV RF Measurements Software for Windows User Manual SSS ey Basic Tutorial The goal of this chapter is to get you to the point where you are familiar with the basic layout of a worksheet can set up a worksheet and can make simple measurements Before beginning the tutorial please check your hardware for the proper connections Double checking the hardware will prevent errors that are hard ware related making learning to use the Cable TV RF Measurements Software for Windows that much easier If you want more information on an individual command please refer to the on line help or to the Menu Bar section starting on page 3 11 This tutorial assumes that a mouse is available If a mouse is not available make selections using ALT the underlined letter of the command
277. worksheets or spreadsheets Each worksheet is based on a single channel table and site combination While several worksheets may be based on the same channel table and site combination a single worksheet may not use more than one channel table and site This utility will scan each of the two pairs of DOS based database files and allow you to create data files and channel table files that are usable by the Cable TV RF Measurements Software for Windows package Running the Utility You should run the exportdb utility from the same directory in which your Windows based Cable TV Software is installed probably 271X_SW The exported channel tables and data files will then be placed in that directory which is also the default location where the Windows based Cable TV Software looks for these files In order to provide maximum protection for your existing data please perform the following operations from the DOS command line to copy the four database files from the directory where your DOS based Cable TV Cable TV RF Measurements Software for Windows User Manual 1 5 Installation 16 Software is located to the directory in which your Windows based Cable TV Software is located Then run exportdb CD C 271X_SW directory for the Windows based CATV software COPY C CATV SARESULT DBF This assumes that the DOS based CATV COPY C CATV SA_VALUE DBF software is installed in the C CATV COPY C CATV CH_TBL DBF directory If installed elsewhe
278. ws User Manual 3 9 Control Menu Box Size Minimize Maximize Close Switch To 3 10 Size allows you to change the size of the application window Size is not available when the application window is maximized See the Windows Operator s Manual To change the size of the window using the keyboard 1 Press ALT spacebar to enter the Control Menu Box 2 Press s to choose Size The cursor changes to a 4 headed arrow 3 Press the arrow keys to change the size of the window The cursor changes to a 2 headed arrow 4 Press ENTER to redraw the window at its new size or press ESC to cancel moving the window The Minimize command changes the application to an icon The application is still running but it is no longer the active window The software stays in the same operating state as when it was converted to an icon This performs the same function as the Minimize button small box with the down arrow on the upper right hand corner of the worksheet See page 3 4 The Maximize command changes the application from an icon back to the active window This also changes a sized window into one that fills the entire display area Maximize performs the same function as the Maximize command button small box with an up arrow on the upper right corner of the worksheet See page 3 4 Close closes the software application window exits the application and halts any Measurement Sequence in progress The Switch To comma
279. x The Print Setup dialog box cceceeeees The Edit Menu The Copy dialog box The Clear dialog bOX 0 ccc cece eee e ce ceeees The View Menu The Status Report View Violations dialog box Results Detail dialog box The 24 hour Carrier Summary display Cable TV RF Measurements Software for Windows User Manual 2 83 2 84 2 84 2 85 2 86 3 3 3 4 3 9 3 11 3 12 3 13 3 13 3 14 3 15 3 16 3 18 3 18 3 19 3 21 3 21 3 22 3 25 3 26 3 30 vii Table of Contents viii Figure 3 20 Figure 3 21 Figure 3 22 Figure 3 23 Figure 3 24 Figure 3 25 Figure 3 26 Figure 3 27 Figure 3 28 Figure 3 29 Figure 3 30 Figure 3 31 Figure 3 32 Figure 3 33 Figure 3 34 Figure 3 35 Figure 3 36 Figure 3 37 Figure 3 38 Figure 3 39 Figure 3 40 Figure 3 41 Figure 3 42 Figure 3 43 Figure 3 44 Figure 3 45 Figure 3 46 Figure 3 47 Figure 3 48 Figure 3 49 Figure 3 50 Figure 3 51 Figure 3 52 Figure 3 53 Example of a Channel Summary 3 31 Example of a Measurement Summary 3 32 Global View dialog box ccccccccecsccecs 3 33 The Measurements and Channels dialog box 3 35 Worksheet with the Measurements and Channel View Filter n cis 66 iis vies sron tsi Be eb EDEN n wees oo eS 3 35 Warning Message cece ccc c cece cece ceeees 3 37 The Row Header Fields dialog box 3 38 The Measure Menu
280. y problems When the printer is set correctly choose the OK command button The printer is now ready to use NOTE As a general rule use landscape orientation for easier to read reports 2 From the File menu choose Print The dialog box shown in Figure 2 32 appears Printer Default Printer PostScript QMS on tolpd byv58s1 servers LPT1 Lox Print Range Cancel Setup All D Selection D Pouey C Print to File C Collate Copies Figure 2 32 The Print dialog box Cable TV RF Measurements Software for Windows User Manual 2 35 Basic Tutorial Print Out the Worksheet Print Out the Results Detail Display End of the Tutorial 2 36 3 Select your needed options and then choose OK to print NOTE Before printing out a worksheet select the View Used option from Measurements and Channels in the View menu This will automatically limit the display to measurements and channels that have results Choose the Print command button on the Button Bar The entire worksheet prints NOTE The print dialog box has a special check box Expand Columns This option allows all of the measurements that would normally only show Pass Caution or Alarm to expand giving all of the numerical results The columns that expand are CSO CTB and HUM LFD a Display the Results Detail for the first channel of the measurement Select the cell then click on the Results button on the Button Bar or c
281. you to run the same UDP at several Sites Clear Sequence To remove all measurements form the measurement sequence select Clear Sequence Measurement Sequences in Non US Countries If you are using the software in a country other than the US your Measurement Sequence dialog box will look different The country is defined in the Windows Control Panel using the International icon The first line in the International dialog box is the Country This is where the country is defined The differences are due to FCC a US regulatory body requirements The Auto Selection buttons that are gone were meant to aid in compliance to FCC requirements If you want to use these Auto Selection buttons change your country from the Windows Control Panel to United States and re start the software application 3 56 Cable TV RF Measurements Software for Windows User Manual Menu Bar Measurement Limits The measurements limits file see Figure 3 39 defines the alarm and caution levels for the measurement results There are two default limits files that come with the software application You can edit the files to conform to your own needs Each channel can have a different limits file assigned for example one for premium channel one for local and one for cable access or one limits file for all the channels Attach a limits file to a channel using the lt Select Limits File command button Measurement Limits Clear Limits File lt Select Limits

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