Home

RFA300A Measurement Set 8VSB B020000 and Above User Manual

Contents

1. Data Data segment Data FEC segment sync sync 7 5 3 Levels 1 before pilot 1 insertion 3 5 7 4 4 gt Symbols 828 Symbols 187 data bytes 20 parity R S bytes Symbols 1 byte 1 byte t 832 Symbols 188 byte MPEG data packet 20 parity bytes gt Figure 3 16 Data segment sync 3 16 RFA300A Measurement Set 8VSB Reference The other sync signal added to the multiplexer is the Frame synchronizing segment As shown in Figure 3 17 a transmission data frame is 616 segments 48 4 ms long A Frame sync segment is sent every 313 segments 24 2 ms The Frame sync segment carries the training reference signals for the receiver equalizer It consists of the following Four byte segment sync Five hundred and eleven reference symbols that the receiver uses for adjusting long equalizer taps Three sets of 63 reference symbols for short equalization Twenty four symbols for VSB level ID Ninety two reserved symbols Twelve symbols repeated from the previous segment 313 Segments 24 2 ms o 313 Segments 24 2 ms 828 Symbols A i E Frame o Frames OS 1 1 Segment 832 Symbols Frame FrameSync 2 SOS 2 77 3 us V Figure 3 17 Frame synchronizing segment RFA300A Measurement Set 8VSB 3 17 Reference Pilot I
2. Cleaning the Exterior Check the electrical performance and the instrument accuracy certified cali brated once a year Preventive maintenance mainly consists of periodic cleaning Periodic cleaning reduces instrument breakdown and increases reliability You should clean the instrument as needed based on the operating environment Dirty conditions may require more frequent cleaning than computer room conditions Clean the exterior surfaces of the instrument with a dry lint free cloth or a soft bristle brush If dirt remains use a cloth or swab dampened with a 75 isopropyl alcohol solution A swab is useful for cleaning in narrow spaces around the controls and connectors Do not use abrasive compounds on any part of the instrument RFA300A Measurement Set 8VSB B 1 Appendix B User Service B 2 ZN Cleaning the Display Cleaning the Compact Disc Drive A A CAUTION Avoid getting moisture inside the instrument during external cleaning and use only enough solution to dampen the cloth or swab Do not wash the front panel On Standby switch Cover the switch while cleaning the instrument Use a 75 isopropyl alcohol solution as a cleanser and rinse with deionized water Do not use chemical cleaning agents they may damage the instrument Avoid chemicals that contain benzene toluene xylene acetone or similar solvents Clean the face of the display using a soft cloth dampened with deionized water The c
3. Operating Basics Windows NT Online Help Release Notes Backing Up Files 2 10 Information about Windows features is available through the Windows help system Access Windows help as you would with any Windows application 1 Go to the Windows taskbar and click Start 2 Select Help from the popup menu NOTE To access Windows NT help using the Touchscreen press the START key on the font panel The online Release Notes contain information about this release of the RFA300A application Check the Release Notes for information such as software compati bility and software version differences from last release To access the Release Notes go to the Windows NT taskbar and click Start or press the front panel START key The Release Notes are at the top of the Start menu You should back up your files on a regular basis Use the Windows Back Up tool to back up files stored on the hard disk The Back Up tool is located in the following path Programs Accessories System Tools Back Start the tool and determine which files and folders you want to back up Use the Windows online help for information on using the Back Up tool In particular you should back up your user generated masks setup files and the results database files RFA300A Measurement Set 8VSB a Reference This section gives an overview of each measurement within the measurement set and the 8VSB transmitter Out of Channel Emissions This section p
4. RFA300A Measurement Set 8VSB r Pilot Y ad Fn T F ymboi FP symbol lt F lt Fr eae 1 g F symbol a Tol 30 Hz Perform all calculations using the nominal value Appendix A Specifications Measurement Specifications Table A 2 Measurement specifications Characteristic Description S N Signal to noise ratio S N is the ratio of ideal signal power to all other signal contributions such as noise and distortion products Data is taken only from the I channel that is the real axis in phase with the pilot at each symbol time S N 20 log Where S N Signal to Noise Power Ratio in dB Ij Ideal received I channel signal 8 j Error in the actual received I channel signal S N Accuracy Reading is within 1 dB of the correct value when S N 25 dB with high smoothing Residual S N 40cB The amount of S N that is created within the RFA300A measurement set A 4 RFA300A Measurement Set 8VSB Appendix A Specifications Table A 2 Measurement specifications Cont Characteristic EVM Error vector magnitude EVM Accuracy Residual EVM RFA300A Measurement Set 8VSB Description EVM is the square root of the mean of the squares RMS of the magnitudes of the real axis symbol error vectors divided by the magnitude of the real in phase part of the outermost ideal constellation state The symbol error is the difference between the received real axis symbol and its ideal value
5. Table D 1 ResultID Values for Mask Tests Mask test ResultID Frequency Response 69 Group Delay 70 Phase Error 81 Phase Noise 77 Amplitude Error 80 Out of Channel Emissions 62 D 2 RFA300A Measurement Set 8VSB a ET Glossary Alarm Limit A parameter set in the Limits dialog box When a measurement exceeds the parameter you are notified in the measurement or Signal Monitor window Amplitude Error An error that is typically caused by an amplifier s gain changing because of signal amplitude The measurement set plots the signals instantaneous amplitude error as a function of amplitude AutoScale Sets the scale factor for both axes to default values Bit Error Ratio BER The ratio of bits correctly received to bits received in error Caution Limit A parameter set in the Limits dialog When a measurement exceeds the parameter you are notified in the measurement or Signal Monitor window Caution limits are typically set to warn you when the measurement is close to exceeding the Alarm limit RFA300A Measurement Set 8VSB Glossary 1 Glossary Constellation Unit A unit half of the minimum distance between two digital 83VSB symbols This is illustrated next using the constellation graph of the EVM window Note that a constellation unit is half of the minimum distance between two I channel constellation levels Many measurements are made in constellation units Unit size remains constant while the Digital Television
6. Window Help Tek Onl rare Smoothing OF gt Q Stop lt Back PIS A Spectrum Results listing Out of Channel Power to Average Power Lower Channel 64 6 dB Upper Channel 62 2 dB Mask indication Adiacent Channel Mask Test Pass Resolution 3 Channels E Fas Update Channel controls Pa F EnhancedAccuracy Amplitude Freq Cursors cB MHz Cursor position Sf 13 05 0 00 A 0 00 0 00 50 25 on 25 s50 MHz Current 3 29 00 3 17 23 PM Tektronix Running Cursor directions Figure 3 1 Out of Channel Emissions measurement window Out of Channel Click the Setup button in the toolbar to enable mask testing and select a mask for Emissions Setup the measurement window The setup dialog box contains the control for turning masks on and off plus a list of available masks You can create your own mask and place it into the measurement set for use Refer to Appendix D Mask File Formatting in this manual for detailed instructions Figure 3 2 shows the Out of Channel Emissions setup Instrument Setup BE Dut of Channel Emissions Limits System default 3 12 98 2 36 04 PM This is the Default Mask for Out of Band Emissions M Cancel Apply Help Figure 3 2 Out of Channel Emissions setup 3 2 RFA300A Measurement Set 8VSB Reference S N EVM and Pilot Amplitude Error This section provides a brief overview of the Sig
7. cee ee cece eeees 2 2 Table 2 2 Control key combination functions 2 3 Table 2 3 Toolbar functions 0 cc cece cece cece ee eeee 2 5 Table A 1 Input specifications ccc cece cece eee eee A 2 Table A 2 Measurement specifications cee eeeeee A 4 Table A 3 System components ccc cee eee ec eee evens A 9 Table A 4 Front panel interface characteristics A 10 Table A 5 Rear panel interface characteristics A I1 Table A 6 AC power source characteristics eeeeee A 13 Table A 7 Environmental characteristics eeeee A 14 Table A 8 Dynamics ccc cece cece cree econ cess eecnees A 15 Table A 9 Transportation 0 cece cece cece cece ee eee A 15 Table A 10 Certifications and compliances 20005 A 16 Table A 11 Mechanical characteristics cc cee eeeeee A 18 Table B 1 Troubleshooting 0 ccc cece cece eee eeee B 4 Table D 1 ResultID Values for Mask Tests 00000e D 2 RFA300A Measurement Set 8VSB vV Table of Contents vi RFA300A Measurement Set 8VSB ee a General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified Only qualified personnel should perform service procedures To Avoid Fire or Use Proper Power Cord
8. Remove the CD ROM from the drive and restart the system when prompted MS03 041 Security Update for Windows NT Workstation 4 0 KB823182 1 2 RFA300A Measurement Set 8VSB Replace the CD ROM in the drive From Start menu run E Patches WindowsNT4Workstation KB823182 x86 enu exe Remove the CD ROM from the drive and restart the system when prompted Appendix C System Recovery MS03 043 Security Update for Windows NT Workstation 4 0 KB828035 1 Replace the CD ROM in the drive 2 From Start menu run E Patches WindowsNT4Workstation KB828035 x86 enu exe 3 Remove the CD ROM from the drive and restart the system when prompted MS03 044 Security Update for Windows NT Workstation 4 0 KB825119 1 Replace the CD ROM in the drive 2 From Start menu run E Patches WindowsNT4Workstation KB825119 x86 enu exe 3 Remove the CD ROM from the drive and restart the system when prompted MS03 045 Security Update for Windows NT Workstation 4 0 KB824141 1 Replace the CD ROM in the drive 2 From Start menu run E Patches WindowsNT4Workstation KB824141 x86 enu exe 3 Remove the CD ROM from the drive and restart the system when prompted Install Database and Make sure that the RFA300A System and Application Restore Media CD ROM is RFA300A Measurement in the CD ROM drive per BYE Sotware 1 Install ODBC30 by running e ODBC30 Setup exe from the Start menu 2 Install DAO30 by running e DAO30 Set
9. This document is available from the World Wide Web at ftp atsc org pub Standards The 8VSB standard is a RF modulation format used to broadcast Digital Television DTV to the home This format was proposed by the ATSC and adopted by the FCC The 8VSB transmitter generates the 8VSB signal as shown in Figure 3 14 The transmitter must take the bit stream output from a MPEG II encoder and transmit it on a 6 MHz RF channel Trellis Encoder Data Reed Solomon Data Randomizer Encoder Interleaver Segment Sync Field Sync Pilot VSB RF Insertion Modulator Upconverter Figure 3 14 8VSB exciter block diagram RFA300A Input Signal To use the 6 MHz channel space with maximum efficiency the 8VSB bit stream must be randomized with a pseudo random bitstream This ensures a flat noise like spectrum and reduces interference to NTSC channels A recurring rhythmic pattern causes the RF energy content to cluster at certain areas in the frequency spectrum Therefore without additional processing certain parts of the 6 MHz channel could be overused while other areas are underused The Data Randomizer changes each byte value to a known pseudo random binary sequence PRBS The PRBS process is reversed in the television receiver to recover the correct data value The Reed Solomon RS encoder uses Forward Error Correction FEC to correct received bit errors that can occur during transmission The RS encoder takes the 187 byte da
10. Use only the power cord specified for this product and Personal Injury certified for the country of use Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Do Not Operate Without Covers Do not operate this product with covers or panels removed Use Proper Fuse Use only the fuse type and rating specified for this product Avoid Exposed Circuitry Do not touch exposed connections and components when power is present Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Operate in Wet Damp Conditions Do Not Operate in an Explosive Atmosphere Keep Product Surfaces Clean and Dry Provide Proper Ventilation Refer to the manual s installation instructions for details on installing the product so it has proper ventilation RFA300A Measurement Set 8VSB vii General Safety Summary viii Symbols and Terms A A Terms in this Manual These terms may appear in this manual WARNI
11. select Control Panel In the Control Panel select Display Select the Settings tab Set the Screen Area to 640 by 480 pixels Set the Color Palette to True Color Click the Apply button RFA300A Measurement Set 8VSB Appendix C System Recovery 7 8 Click the OK button to confirm Click the OK button again to exit Install Internet Explorer Make sure the RFA300A System and Application Restore Media CD ROM is in the CD ROM drive Pe a GE Be ee SIS oS From Start menu run E IE6 ie6setup exe Follow the Internet Explorer setup instructions to complete the installation Check I accept the agreement and click Next Check Install Now Typical set of components and click Next Remove the CD ROM from the drive and restart the system when prompted Replace the CD ROM in the drive From Start menu run E Patches q828750 exe Remove the CD ROM from the drive and restart the system when prompted Install Critical Security Make sure the RFA300A System and Application Restore Media CD ROM is in Updates the CD ROM drive MS03 026 Critical Security Patch for Windows NT 4 0 Blaster Worm 1 2 From Start menu run E Patches q823980i exe Remove the CD ROM from the drive and restart the system when prompted MS03 039 Security Update for Windows NT 4 0 Workstation KB824146 1 2 Replace the CD ROM in the drive From Start menu run E Patches WindowsNT4Workstation KB824146 x86 enu exe
12. Cleaning B 1 COM port configuration C 8 Configuration C 5 Configure the COM ports C 8 Configure the display C 10 Connections 1 16 Constellation unit definition Glossary 2 Contacting Tektronix x D Diagnostics descriptions B 3 extended 1 20 E Environmental characteristics A 14 Error Vector Magnitude window 3 3 Event viewer configuration C 5 Extended diagnostics 1 20 RFA300A Measurement Set 8VSB F Frequency Response definition Glossary 2 Frequency Response setup 3 7 Frequency Response window 3 6 Frequency channel 1 18 Front panel 2 1 G General care B 1 Group Delay definition Glossary 2 Group Delay setup 3 7 Group Delay window 3 6 H Hard drive restore C 3 Hardware installation 1 6 Hardware problems B 4 Help online 2 9 Home window 1 2 2 4 Incoming inspection 1 20 Input signal 1 18 Installation 1 5 hardware 1 6 Internet Explorer C 11 J JSP software C 8 K Keyboard driver C 9 Keyboard soft 2 3 Keypad 2 1 L Limits Set definition Glossary 2 Limits creating 2 6 Index 1 Index Maintenance preventive B 1 Making a measurement 2 6 Mask 2 7 Amplitude Error 3 9 definition Glossary 2 Frequency Response 3 7 Group Delay 3 7 Out of Channel Emissions 3 2 Phase Error 3 9 Phase Noise 3 5 Measurement functionality ver
13. EVM is often expressed as a percent Error Vector Magnitude EVM is defined by the following formula EVM us x 100 Where EVMpms Error Vector Magnitude Ij The error in the real axis received signal value Smax Magnitude of the real in phase part of the vector to the outermost state of the constellation EVM can also be expressed in terms of dB where EVMGB 20 l0g 100 EVM Note that the ratio is intentionally inverted to make the value in dB positive 12 of the correct reading When S N 25 dB with high smoothing lt 1 Residual EVM is created within the RFA300A measurement set Appendix A Specifications Table A 2 Measurement specifications Cont Characteristic Description Complex MER Modulation Error Ratio Complex Modulation Error Ratio Complex MER is a complex form of the S N measurement that is made by including Q quadrature channel information in the ideal and error signal power computations similar to EVM MER is defined by the following formula N Di 27 j l MER 20log S 617 Q j l Where MER Modulation error ratio Ij and Qj Ideal I channel and Q channel symbols I and SQj Errors between received and ideal I channel and Q channel symbols MER Accuracy 1 dB of the correct reading When S N 25 dB with high smoothing Residual MER 40 dB Residual MER is created within the RFA300A measurement set Pilot Amplitude Deviation 0 1 dB
14. Family Standard for Electrical Equipment for Measurement Control and Laboratory Use EMC Requirements Emissions EN 61326 IEC 61000 3 2 Immunity IEC 61000 4 2 IEC 61000 4 3 IEC 61000 4 4 IEC 61000 4 5 IEC 61000 4 6 IEC 61000 4 8 IEC 61000 4 11 Class A Radiated and Conducted Emissions Conducted Power Line Harmonic Currents Electrostatic Discharge 2 Radiated RF Electromagnetic Field 24 Electrical Fast Transient Burst 3 Surge 2 Conducted RF 2 4 Power Frequency Magnetic Field 2 Power line Fluctuation 3 Emissions comply with FCC Code of Federal Regulations 47 Part 15 Subpart B Class A Limits Compliance was demonstrated to the following specification as listed in the Official Journal of the European Union Low Voltage Directive 73 23 EEC amended by 93 69 EEC EN 61010 1 1993 ANSI ISA 82 01 1994 CAN CSA C22 2 No 1010 1 UL3111 1 IEC61010 1 Safety requirements for electrical equipment for measurement control and laboratory use Safety standard for electrical and electronic test measuring controlling and related equipment Safety requirements for electrical equipment for measurement control and laboratory use Standard for electrical measuring and test equipment Safety requirements for electrical equipment for measurement control and laboratory use 1 Compliance demonstrated using high quality shielded interface cables 2 EN 61326 Immunity Test requirement for Industrial Location inten
15. In addition the setup has a reference point selection for the measurements either channel center or the pilot The setup contains the control for turning masks on and off plus a list of available masks You can create your own mask and place it into the measurement set for use Refer to Appendix D Mask File Formatting in this manual for detailed instructions Figure 3 7 shows the Frequency Response and Group Delay setup Instrument Setup 7 x Frequency Response and Group Delay Limits System Reference Point Select the reference point for Flatness and Group Delay measurements Both Amplitude and Frequency will be referenced against this point Pilot Frequency Channel Center default 6 24 98 1 12 00 PM This is the Default Mask for Frequency Response Y V Enable Group Delay Mask Test default 6 24 98 1 12 04 PM This is the Default Mask for Group Delay he Figure 3 7 Frequency Response and Group Delay setup RFA300A Measurement Set 8VSB 3 7 Reference Amplitude and Phase Errors This section provides a brief overview of the Amplitude and Phase Errors measurement window For more in depth information refer to the online help This measurement measures amplitude and phase errors which are nonlinear distortions A signal s phase can shift with amplitude Transmitters particularly high power ones can exhibit amplitude errors in the form of clipping or compression when close to full power These err
16. Measurement Set 8VSB Installation Installing the Instrument in the Equipment Rack Perform the following steps to install the instrument in the equipment rack 1 Pull out the intermediate sections of each slide out track to the fully extended position Refer to Figure 1 8 Insert the tracks of the rack adapter into the slide out intermediate sections Press both stop latch releases and push the rack adapter toward the rack until the latches snap into their holes Again press the stop latches and push the rack adapter fully into the equipment rack Vleeeeeeo0oe o COP PFoeceeoeeed Figure 1 8 Installing the instrument into the equipment rack RFA300A Measurement Set 8VSB Installation 5 If necessary adjust the alignment of the stationary sections according to the following procedure a Loosen the mounting screws at the front of both stationary sections b Allow the tracks to seek their normal positions with the adapter centered in the rack c Tighten the mounting screws Portable Installation The optional portable cabinet allows you to operate the instrument on a bench or cart If you operate the instrument while it rests on the rear feet make sure that you properly route any cables coming out of the rear of the instrument to avoid damaging them Table 1 2 on page 1 4 lists the part number of the portable cabinet CAUTION Keep the bottom of the instrument
17. ROM drive 1 2 3 4 RFA300A Measurement Set 8VSB From the Start menu run e drivers TouchBas tnsetup exe Select touch screen type DynaPro Serial SC3 Click OK to continue Select the following communication port settings in the Hardware Controls Serial dialog box Com Port COM 3 Address 3E8 C 9 Appendix C System Recovery Install Windows NT Service Pack 6a Install the VIA Display Driver Configure the Display IRQ 10 Baud Rate 2400 Parity None Data Bits 8 Stop Bits 1 Remove the CD ROM from the drive and restart the system From the Start menu select Programs Touch and then TouchScreen Control Click the Calibration button to perform calibration Follow the instructions to calibrate the touch screen Click the User Controls button and then click the Sound check box to deselect sound Make sure the RFA300A System and Application Restore Media CD ROM is in the CD ROM drive 1 2 3 From the Start menu run e SP6a sp6I386 exe Follow the Windows NT installation instructions Remove the CD ROM from the drive and restart the system when installa tion is completed Make sure the RFA300A System and Application Restore Media CD ROM is in the CD ROM drive 1 2 Sy TA A A ee a From the Start menu run E Drivers Video Wnt4 Setup exe Remove the CD ROM from the drive check Yes I want to restart my computer now and click Finish From the Start menu
18. a shaping network to produce the corrected output RFA300A Measurement Set 8VSB EE ee Appendix A Specifications Specification Tables This section lists the electrical physical and environmental characteristics of the RFA300A Measurement Set 8VSB The tables list the specifications for the RFA300A Measurement Set 8VSB All specifications are guaranteed unless labeled typical Typical specifications are provided for your convenience but are not guaranteed Specifications marked with the symbol are checked in the Performance Verification Procedures refer to the RFA300A Measurement Set 8VSB Service Manual Performance Conditions The Performance requirements are valid within the environmental limits if the instrument was adjusted at 25 C 5 C and you allowed a minimum warm up time of 20 minutes The measurement set is limited to situations where a single high amplitude 8VSB RF signal is available for direct input to the measurement set RFA300A Measurement Set 8VSB A 1 Appendix A Specifications RFA300A Measurement Set Specifications Table A 1 Input specifications Characteristic RF Input Input Frequency Range Demodulation Modes Out of channel Emission Modes Input impedance Return Loss Selected Port Nonselected Port nominally terminated RF Inputs Isolation Signal Amplitude Without external 10 dB attenuator With external 10 dB attenuator IF Filter Adjacent Channels A 2 Other Spuriou
19. bist TENE E a I E aE A AO 2 9 Backin esp Files ty A aane nee aE a aA S A A aura a AN E AAEN 2 10 Reference RFA300A Reference esssssssesossesosssocsscoosesoeeseo 3 1 Out of Channel Emissions 00 ore eagat a p EE a a e 3 1 S N EVM and Pilot Amplitude Error 0 0 00 eee ee eee eee ee 3 3 Phase NOISCssicss f aac Ral ngiaee Treaa ia od yack Eaa a atin gay akan Ae 3 4 Frequency Response and Group Delay 00 cee eee eee eee eee 3 6 Amplitude and Phase Errors 0 2 eee cee eee en eens 3 8 Peak to Average and Channel Spectrum 0 0 ee eee eee eee eee 3 10 SISTA MONON sees cere ssl ssa Ake a tae tees ache dak Pinko aeaaea a beie d ani 3 12 SV SB OVELVIEW heee nea ea acer iae Ean tegen cde agit Soak Satan Ee 3 14 Closed Loop Transmitter Control 11 0 00 cee cece eee eee eee 3 18 RFA300A Measurement Set 8VSB i Table of Contents Appendices Glossary Index Appendix A Specifications ccc cece eee e eee e cence A 1 SpecifiCation Tables oo e eves srecace rde e e E EA A 1 Performance Conditions 0 2 cece cece eee ence een eens A 1 RFA300A Measurement Set Specifications 0 00000 eee A 2 Measurement Specifications 0 eects A 4 Platform Characteristics 0 0 eee ccc eect ence tenes A 9 Power ChartaCteristiCsin 5 athe og tive dlaok wesa ete de bb ad hava are nate Sage a A 13 Environmental Characteristics 00 eee cece eee eee ee A 1
20. cece cence vii Preface aidd a CAG a N dee tots ie Sore desta Sieh viata e S ix Related Documentation 0 cece cece eee ene nes ix Contacting Tektronix s netran a a eane a E a a a ai E neee x Getting Started Getting Started sitiari WA ed ee SA RR es eA ek SA Ee A 1 1 Product Description esc pis eee a ee DR ree ed eee 1 1 ACCESSONCS Lett otc oes a ee SAG NaS Oe aed ae 1 4 Vista Mth mn ereo a elate a ee shee ae a seca A aiela 6a hea wee AR 1 5 Check the Shipping List 0 0 eee cece eee eee een eee 1 5 Operating Requirements 00 eee eee cette eens 1 6 Hardware Installation 0 eee ce eee nee eee 1 6 Creating a Startup Disk 2 0 0 a eee cee eee nen eee 1 13 RF Connections ici cte ia fie aan a A ae Pate aaa ag ee ees 1 14 Interface Connections ie is eein aae aa ccc eee een DAEA ELES 1 16 Keyboard and Mouse Connections 0 0 c eee cece eee eee ee 1 16 Powering On and Off 0 cece een A nen eee 1 17 Selecting RF Input Channel and Channel Frequency 1 18 Incoming Inspection 0 0 eee cece eee ence eens 1 20 Operating Basics Operating Basics ccc ccc ccc cece cere reece eee ence eee 2 1 Eront Panel fic c5 cath rte os tara a N aoa altel 2 ae E a Tis OR wie Ua de ees 2 1 Home WAT OW i mesara Sear end he Gee aha Uae a an A eg arn aah ae eure eo dee pa 2 4 Making asMcasuremicnt sca suerte ek cies Westar AA E cla E E AEE sau 2 6 Onlineen sehen E ckiayaa kina oi
21. clear of obstructions to ensure proper cooling 1 12 RFA300A Measurement Set 8VSB Installation Creating a Startup Disk An RFA300A Windows NT Start Up disk is shipped with the instrument Use this disk to restart your measurement set in case of a major hardware or software failure This section creates an extra startup disk in case the original becomes corrupted All software is installed at the factory If you ever need to reinstall refer to Appendix C Software Installation NOTE You cannot reinstall software without a startup disk To create a startup disk do the following 1 RFA300A Measurement Set 8VSB Open My Computer Control Panel and double click on Add Remove Programs Select the Startup Disk tab Click the Create Disk button and follow instructions Copy the following files to the startup disk C REALMODE MSCDEX EXE C REALMODE TEAC_CDLSYS C WINDOWS COMMAND XCOPY EXE C WINDOWS COMMAND XCOPY32 EXE Create a file named AUTOEXEC BAT in the startup disk Add the line MSCDEX EXE D TEAC CDI L D to the file Open the CONFIG SYS file in the startup disk and add DEVICE TEAC_CDLSYS D TEAC CDI to the end file 1 13 Installation RF Connections The quality of the input signal path is critical in obtaining the full specified performance of the measurement set Therefore you must connect the measure ment set to your transmitter using high quality cable and connectors The following list
22. from the Start menu and then select Restart the computer You can use the procedures in this section to do any of the following m Restore the system BIOS settings to factory defaults m Restore a part of the system m Restore the complete system including installation and configuration to factory defaults RFA300A Measurement Set 8VSB C 1 Appendix C System Recovery The complete system includes m Microsoft Windows NT 4 0 Automatic logon for Windows NT 4 0 m Realtek 8139 A B C 8130 PCI Fast Ethernet Adapter m Network TCP IP and Netbeui protocols and Microsoft TCP IP printing service m ES1869 Sound Driver Version 2 01 08 m Tektronix JPS driver m Touch Base SC3 Touch Screen Driver Version 1 33 m My T Soft NT soft keyboard m Service pack 6a m VIA Display Driver m Internet Explorer 6 0 m Security Patches Microsoft ODBC m Microsoft Data Access Object m Tektronix RFA300A Measurement Set 8VSB application software C 2 RFA300A Measurement Set 8VSB Appendix C System Recovery Restore the BIOS Settings CAUTION The RFA300A Measurement Set 8VSB is programmed with custom BIOS settings choosing any other settings will cause instrument malfunction Use the setup defaults in these procedures Restore BIOS settings To reprogram the CMOS NVRAM to the custom factory settings for the BIOS fromthe CD ROM perform the following steps Power up the RFA300A Measurement Set 8VSB Press the DEL button
23. in the toolbar 2 Click the Limits tab 3 Select which results are to be compared against the limits when the measurement is running 4 Enter the low value for Alarm The value must be less than the low Caution value 5 Enter the low value for Caution The value must be less than High Caution and greater than Low Alarm 6 Enter the high value for Caution The value must be less than High Alarm and greater than Low Caution 7 Enter the high value for Alarm The value must be greater than High Caution For some measurements you cannot enter values for all limits because it would be counter productive For example there is no reason to set a high caution or alarm value for signal to noise when you want the signal to noise ratio to be as high as possible RFA300A Measurement Set 8VSB Operating Basics Masks The mask testing feature is not on when you receive your measurement set To turn masks on and off or to select different masks do the following 1 Open a measurement window For example open the Amplitude and Phase Error window 2 Click the Setup button located in the toolbar 3 Select the appropriate box to enable a mask test The mask is enabled when checked 4 Select the mask you want to use 5 Click OK to accept your changes and return to your measurement window Not all of the measurements need or include a mask test Those that do not are the Signal Noise Error Vector Magnitude and Pilot Amplitu
24. measurement set This section does not identify specific problems relating to performance verification or adjustments For information on running perfor mance verification procedures or adjustment procedures refer to the RFA300A Measurement Set 8VSB Service Manual available as an optional accessory Use diagnostics to isolate problems to software or hardware within the instru ment For additional help on diagnostics contact your local Tektronix represen tative The following diagnostic tools are available with your measurement set m Power on diagnostics These diagnostics run when you first power on the instrument or when you first start the measurement set application If any diagnostic failures are detected during power on the Power On Diagnostics dialog box appears m Extended diagnostics These diagnostics test the instrument more thoroughly than the power on diagnostics You can use extended diagnostics to isolate problems down to an individual module The extended diagnostics are part of the measurement set application To run extended diagnostics go to the Tools menu select Diagnostics and click the Extended Diagnostics tab The RFA300A Measurement Set 8VSB is shipped with software already installed For any suspected software problems try to isolate the problem to the measurement set application software or to other installed software Software problems can be caused by corrupted or missing software files Often the easiest w
25. paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the 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 REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE 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 Se Table of Contents General Safety Summary 0 cece cece c eee cece
26. previously opened window Forward opens the following window Returns to the Home window Provides a brief description of the selected control or object Operating Basics Making a Measurement Selecting Frequency Limits Versus Masks Limits The following provides a basic overview of how to make and save a measure ment Refer to the online help for details on other operating features An explanation of how help works is on page 2 9 Before running measurements you must select your channel frequency and determine that the input signal has power within the correct range Refer to Selecting RF Input Channel and Channel Frequency on page 1 18 for the procedures on selecting channel frequency and checking input signal power Before proceeding you should understand the differences between limits and masks Limits are parameters against which numeric measurement results can be compared automatically You can choose the color to highlight results that violate parameters The mask testing feature allows you to set visual parameters within the graphic portion of the measurement window The masks are lines against which you can compare waveforms After selecting your channel frequency and checking input signal power you can edit caution and alarm limits The instrument compares each new result against the current limits as soon as you enter the measurement window To edit limits do the following 1 Click the Setup button located
27. provides the requirements needed for the RF connection m Hold the nonflatness of the input signal to approximately 0 05 dB peak to peak or less over the width of the channel m Keep the station s radiated signal to at least 63 dB down from the sampled signal in the line by using appropriate shielding m The cable with connectors must have a return loss of at least 26 dB VSWR lt 1 10 over the channel width and a loss tilt of less than 02 dB over the channel width This assumes that the tap used to obtain the signal has a return loss of gt 30 dB VSWR lt 1 065 High quality cable and connectors are required to meet the listed requirements The connectors should be precision grade at both ends of the cable The best cable type is dependent on the run length and operating frequency The return loss requirement is hardest to meet at high frequencies and the loss tilt is hardest to meet at low frequencies In either case minimize the difficulties by using only a few feet for cable length Longer lengths 50 ft or more place extreme requirements on cable quality specifications The rear panel provides two RF input connectors for your transmitted signal Refer to Figures 1 9 and 1 10 to connect the measurement set to your transmit ter and for other connections Transmitter Channel filter Power input RFA300A Figure 1 9 Transmitter connection Connect the measurement set to your transmitter in a manner that ensure
28. signal varies in amplitude Thee ae ae L AO a ame ee 8 1 1 1 1 1 l 1 4 4 i dJ i i i 1 Y 1 too id 7 3 x i hot Py i a ron 1 i 1 1 1 1 1 1 1 r 1 1 1 1 1 1 5 3 i ee ooo Bs fe ea Soe at Se Re ea eae a ws Sata ae ee ee eS Ooi en oe ES eens ES E E E ees eee ae HK ae ea he rented cen pe wf ae Gree ua ig poset i a of E a 7 7 s 4 1 1 i 7 b 2 Constellation units Frequency Response The variation of signal amplitude over a channel s frequency range Group Delay The relative time of propagation of packets of information at frequencies in the spectrum of a waveform Limits Set A set of caution and alarm parameters against which numeric measurement results are compared Mask A visual parameter within the graphic portion of the measurement window against which acquired waveforms are compared Peak Transient Power The maximum value of envelope power occasionally reached by a digitally modulated signal Glossary 2 RFA300A Measurement Set 8VSB Glossary Phase Error An error typically caused by variation of an amplifier s phase changing because of signal amplitude The measurement set plots the signals instantaneous phase error as a function of amplitude Phase Noise A noise typically added to the digital modulation by the transmitter s frequency synthesizer system The measurement set measures the pilot s phase noise Result The outcome of a measurement in n
29. the Event Viewer Log menu select Log Settings c Select Overwrite events as needed for the Application System and Security logs d Exit the Event Viewer Set the Microsoft Explorer options as follows a Open Microsoft Explorer b Inthe View menu select Options c Select the View tab d Select Show all files e Deselect Hide file extensions for known file types C 5 Appendix C System Recovery 5 Set boot initialization countdown as follows a From the Start menu select Control Panel b Inthe Control Panel double click the System icon c Select Startup Shutdown tab d Change the Showlist for entry to 3 seconds Install and Configure Individual Components If a component is malfunctioning reinstall or reconfigure the driver or software individually This may save you from having to restore the entire partition Install Realtek Make sure that the RFA300A System and Application Restore Media CD ROM is 8139 A B C 8130 PCI Fast in the CD ROM drive Ethernet Adapter 1 Copy E Drivers Ethernet Rtl8139C to C Temp NOTE This Ethernet driver does not work directly from CD It is necessary to copy to hard disk first 2 From the Start menu select Control Panel 3 Inthe Control Panel select Network 4 Select Wired to the network 5 Do not let Windows NT detect network card Instead choose Select from list Select Have Disk Enter C Temp Rtl8139C for the driver directory location Select
30. the rackmount versions of the instrument cabinet If your existing packaging materials are in good condition compare them against Figures B 1 and B 2 to determine which packaging procedure to use Use the procedure associated with your existing packaging materials m The configuration vintage of the packaging materials is important to note Replacement components for the old design packaging materials are no longer available Also the components of the new and old designs are not interchangeable If your packaging materials are of the old design and require any replacement components you must order a new packaging kit If your instrument was originally shipped in the older design packaging and you have converted the cabinet from portable to rackmount configuration use the new design packaging which contained the rackmount conversion kit or order a new design shipping kit RFA300A Measurement Set 8VSB B 5 Appendix B User Service Replacement Packaging New packaging materials are available from Tektronix To obtain these items Materials contact your nearest Tektronix representative The replacement packaging kit Tektronix part number 065 0651 XX includes all of the packaging material shown in Figure B 1 Each packaging component in the illustration has an index number which corresponds to reference numbers in the packaging procedure Note The keyboard mouse manual and their boxes do not need to be returned with the in
31. with front and rear cushions attached and lower into the shipping box 4 as indicated by Figure B 1 8 Position the tray 1 into the top of the box pressing the tray down until it rests on the tops of the front and rear cushions NOTE To ensure packaging integrity and product safety the tray 1 must be installed regardless if any accessories are being included in the package 9 If you are shipping the accessories arrange the accessories in the tray 10 Close and tape the shipping box 11 Attach the appropriate shipping documents needed to ship the instrument to its destination RFA300A Measurement Set 8VSB B 7 Appendix B User Service Repackaging Procedure Old Design B 8 If your instrument was shipped in the older packaging materials as shown in Figure B 2 inspect your existing packaging materials to make sure they are complete and in good condition as described in Packaging Inspection on page B 5 If your existing earlier packaging materials are in good condition follow the procedure below to repackage your instrument for shipment When the instrument is shipped it is important to package it well to protect the instrument Figure B 2 shows how to repackage the instrument for shipment using the old packaging materials It is not necessary to return the accessories received with the instrument when returning the instrument for repair NOTE The packaging materials illustrated in Figure B 2 will accommod
32. your own mask and place it into the measurement set for use Refer to Appendix D Mask File Formatting in this manual for detailed instructions Figure 3 5 shows the Phase Noise setup Instrument Setup BE Phase Noise Limits System default 1 6 98 12 40 32 PM This is the Default Mask for Phase Noise z cea aeo Hoe Figure 3 5 Phase Noise setup RFA300A Measurement Set 8VSB 3 5 Reference Frequency Response and Group Delay 3 6 This section provides a brief overview of the Frequency Response and Group Delay measurement window For more in depth information refer to the online help This measurement measures frequency response and group delay errors These errors are the result of linear distortion caused by transmitter imperfections or possibly small impedance mismatches or both The frequency response errors are listed in dB The frequency at which the minimum and maximum errors were found is also shown Group delay errors are in nanoseconds The measurement set calculates these measurements by deriving the amplitude and time delay response of the channel from the equalizer tap coefficients Frequency response and group delay are calculated relative to the pilot frequency or the center of the channel as selected in the setup The Frequency Response and Group Delay measurement window is shown in Figure 3 6 The measurement window contains the following areas m A listing of measurement results m Cu
33. 0 2 x deviation reading dB When S N 25 dB with high smoothing A 6 RFA300A Measurement Set 8VSB Appendix A Specifications Table A 2 Measurement specifications Cont Characteristic Out of Channel Emissions Measurement Limit Out of Channel Accuracy Upper Lower Channel Power Accuracy Transmitter Frequency Response Error Frequency range Display accuracy Residual Flatness Error Transmitter Group Delay Frequency Range Display Accuracy Residual Group Delay Error Amplitude Error Accuracy Phase Error Residual Phase Accuracy RFA300A Measurement Set 8VSB Description Out of channel emissions are spectral power versus frequency measurements similar to those made by a spectrum analyzer FCC Out of Channel Emissions Standard as referenced to MM Docket No 87 268 In the first 500 kHz from the authorized channel edge transmitter emissions must be attenuated no less that 47 dB below the average transmitted power More than 6 MHz from the channel edge emissions must be attenuated no less than 110 dB below the average transmitted power At any frequency between 0 5 MHz and 6 MHz from the channel edge emissions must be attenuated no less than the value determined by the following formula Attenuation in dB 11 5 Af 3 6 where Af frequency difference in MHz from the edge of the channel All attenuation limits are based on a measurement bandwidth of 500 kHz The 8 VSB Transmitter Emissions Mas
34. 004 023 es 3 75 100 125 150 C Constellation Units CU Smoothing Curent 9 10 98 45401 PM Tektronix Cursor directions Figure 3 8 Amplitude and Phase Errors measurement window Amplitude and Phase Click the Setup button in the toolbar to enable and select masks for the measure Errors Setup ment window The Setup dialog box contains controls for turning masks on and off and selections for using different masks You can create your own mask and place it into the measurement set for use Refer to Appendix D Mask File Formatting in this manual for detailed instructions Figure 3 9 shows the Amplitude and Phase Errors setup Instrument Setup 7 x Amplitude and Phase Error Limits System defaut 2 5 98 11 59 16 AM This is the Default Mask for Magnitude Error z M Enable Phase Error Mask Test default 12 19 97 10 47 08 4M This is the Default Mask for Phase Error Cancel Apply Help Figure 3 9 Amplitude Error and Phase Error setup RFA300A Measurement Set 8VSB 3 9 Reference Peak to Average and Channel Spectrum This section provides a brief overview of the Peak to Average and Channel Spectrum measurement window For more in depth information refer to the online help This window measures the cumulative distribution of peak power over time Peak power is the maximum value of envelope power that is randomly reached by the digitally modulated signal Power amplifiers driven beyond their capability c
35. 11 provide the interconnection ports for peripheral devices and networking Pin assignments for the rear panel and side panel connectors are listed in Table A 4 and Table A 5 in Appendix A Specifications Keyboard and Mouse Connections Connect the keyboard and mouse to the left side of the instrument as shown in Figure 1 11 009242202 262596959208 09090 O08 OB 0 O86 oro OS Earphones Not used USB Keyboard Mouse Figure 1 11 Keyboard and mouse connections 1 16 RFA300A Measurement Set 8VSB Installation Powering On and Off This section contains the procedure for powering on the instrument for the first time To power off the instrument refer to Powering off on page 1 18 First Time Power On Power on the measurement set as follows 1 Press the On Standby switch to power on the instrument see Figure 1 12 for the switch location On Standby switch Figure 1 12 On Standby switch 2 Wait for the instrument to complete power on self tests The screen displays an Enter Windows Password dialog box prompting you for a logon name and password However if a password is entered then each time you power on the measurement set you will be prompted for logon information To avoid this do the following steps a Enter a user name for example RFA300A in the Enter Windows Password dia
36. 3 7 Figure 3 8 Amplitude and Phase Errors measurement window 3 9 Figure 3 9 Amplitude Error and Phase Error setup 3 9 Figure 3 10 Peak to Average and Channel Spectrum measurement WINDOW 155 6 Ses hale cee eit te ears Voie ets eae ee ea a ek 3 10 RFA300A Measurement Set 8VSB iii Table of Contents Figure 3 11 Peak to Average Setup cc cee ceceeceees 3 11 Figure 3 12 Signal Monitor measurement window 3 12 Figure 3 13 Signal Monitor Setup 0 cee ee cece eee 3 13 Figure 3 14 8VSB exciter block diagram 0eeeeee 3 14 Figure 3 15 Data interleaving ccc cece cece eee 3 15 Figure 3 16 Data segment sync cc cece eee cee eeeeee 3 16 Figure 3 17 Frame synchronizing segment 0 e000 3 17 Figure A 1 IF filter characteristics 0 cece eee ee eeee A 3 Figure A 2 8VSB transmitter emissions mask 62 A 8 Figure B 1 Repackaging the instrument new packaging B 6 Figure B 2 Repackaging the instrument old packaging B 8 Figure B 3 Placement of bottom spacer pad in inner shipping box B 9 RFA300A Measurement Set 8VSB Table of Contents List of Tables Table 1 1 Standard accessories cece cece cece eeees 1 4 Table 1 2 Optional accessories cece cece cece eens 1 4 Table 1 3 Operating requirements cee eee eee evees 1 6 Table 2 1 Front panel key controls
37. 4 Electromagnetic Compatibility 0 0 cee eee eee eee A 16 Mechanical Physical Characteristics 0 0 0 0 cece eee eee A 18 Appendix B User Service sebia Waele gue Ooi 6 ERETT B 1 General Care rrei ed AARE E EEOAE E eta oe E ale bad awe ea B 1 Preventive Maintenance eee eee cee tence tenes B 1 In CaSe of Problems sesso wean the wae ee PEP aes Pees Ae B 3 Repackaging for Shipment 0 ATEENA ATEENA RTE eee B 5 Appendix C System Recovery cc cee cece eee ceceeeece C 1 OVERVIEW 80 55 ease 8 ei ea ae Wiad Ns cae Mle A a E ek C 1 Restore the BIOS Settings 2 0 0 eee cece eee eens C 3 Restore the Contents of the Partitions 00 00 eee eee eee C 3 Install and Configure Individual Components 0 0000 C 6 1 Appendix D Mask File Formatting 0 ce cece e cece I RFA300A Measurement Set 8VSB Table of Contents List of Figures Figure 1 1 RFA300A 8VSB Measurement Set front panel 1 2 Figure 1 2 Home window ccc cece ec ee ec ecececeees 1 3 Figure 1 3 Attaching the extension brackets to the Stationary tracks esssssssessessossosssoscsecssosso 1 8 Figure 1 4 Mounting hole selection on the front rails of the equipment rack ccc cece ce reece reece renee Ea E 1 8 Figure 1 5 Attaching the extension bracket to the rear rail of the equipment rack osare rra cece cece reece reece eee ene ETE 1 9 Figur
38. 8139 A B C 8130 PCI Fast Ethernet Adapter Me SO sas oS Select TCP IP Protocol 10 Select NetBEUI Protocol 11 When prompted for Windows NT files specify E I386 12 When prompted a second time for Windows NT files specify E I386 13 Set RTL8139 Duplex Mode to Auto 14 When prompted to use DHCP select No C 6 RFA300A Measurement Set 8VSB Appendix C System Recovery 15 Set the IP address to 1 1 1 1 the computer name to RFA300A and the workgroup tt WORKGROUP 16 Remove the CD ROM from the drive and restart the system when prompted Install NT services Make sure that the RFA300A System and Application Restore Media CD ROM is in the CD ROM drive A SEE Rm ober a From the Start menu select Control Panel In the Control Panel select Network In the Services tab select the Add button Select Microsoft TCP IP Printing in the list then select the OK button Select the Close button Remove the CD ROM from the drive and restart the system when prompted Install ESS Technology Make sure that the RFA300A System and Application Restore Media CD ROM is ES1869 Sound Chip Driver in the CD ROM drive 1 RFA300A Measurement Set 8VSB From the Start menu select Control Panel In the Control Panel select Multimedia In the Device tab select Audio Devices Select ES1879 1869 1878 1868 1887 1888 Audio and click the Remove button Remove the CD ROM from the drive and restart the system Replace the CD R
39. ACrms 47 63 Hz Steady State input current 6 Arms maximum 1 9 A typical Maximum power consumption 540W Temperature 5 C to 45 C 32 F to 113 F 30 C hr max gradient non condensing derated 1 C per 1 000 ft above 5 000 ft altitude Humidity 20 to 80 relative humidity non condensing Max wet bulb temperature 31 C derates relative humidity to 50 50 C Altitude To 10 000 ft 3 040 m derated 1 C per 1 000 ft above 5 000 ft altitude Before you can operate the product you must connect the provided power cord Refer to Figure 1 10 and connect the power cord to the instrument Refer to Table 1 3 for the supply voltage rating and connect the other end of the power cord to the proper source Do not connect to any power sources other than those for which the instrument is rated This section deals with hardware installation To reinstall software refer to Appendix C System Recovery The factory installed cabinet is designed to operate in an equipment rack see Rackmount Installation on page 1 7 The optional portable cabinet allows you to operate the instrument on a bench or cart see Portable Installation on page 1 12 For proper cooling at least two inches 5 1 cm of clearance is recommended on the rear and sides of the instrument cabinet The measurement set is limited to installations where a single high amplitude 8VSB RF signal is available for direct input to the measurement set Refer to R
40. B above average Running Curent 9410 98 4 55 27PM Tektronix Figure 3 10 Peak to Average and Channel Spectrum measurement window 3 10 RFA300A Measurement Set 8VSB Reference Peak to Average Setup Click the Setup button in the toolbar to select the target operating point method for the measurement window You can select in dB or percentage of time Figure 3 11 shows the Peak to Average Setup Instrument Setup timis System Figure 3 11 Peak to Average Setup RFA300A Measurement Set 8VSB 3 11 Reference Signal Monitor 3 12 This section provides a brief overview of the Signal Monitor measurement window For more in depth information refer to the online help The Signal Monitor allows you to continuously monitor one or more of the other measurements in one window while the instrument is unattended You can enter the setup for each measurement in each measurement s Setup dialog box Set all cautions and alarms in the Limits dialog box refer to Limits on page 2 6 The selection of which measurements to monitor is made in the Signal Monitor Setup Figure 3 12 shows the Signal Monitor measurement window G RFA300A Amplitude amp Phase Errors BBE File Edit Yiew Setup Bun Stop Tools Window Help elaja Setup Smoathina pomi he oO Stop lt lt Back F d gt gt Ls 1 Test Name Result Time stamp System Notes Frequency Response amp Group Delay Freq Resp Max 0 35 dB 9 2 98 1 21 28 PM F
41. F Connections on page 1 14 RFA300A Measurement Set 8VSB Installation Rackmount Installation If your instrument has the rackmount cabinet there is rackmounting hardware on each side of the cabinet temperature at all air intake vents inside of the rack must not exceed 50 C CAUTION For proper cooling in an equipment rack installation the air Mounting the Stationary Tracks in the Equipment Rack The slider kit consists of left and right stationary tracks that must be installed in the equipment rack Extra hardware is provided with the slider assemblies Since the hardware is intended to make the sliders compatible with a variety of racks and installation methods not all of the hardware will be used for any installation procedure 1 Attach the extension bracket to the rear of the stationary track a Measure the distance between the front and rear rails of the equipment rack using method A or method B Refer to Figure 1 3 m Method A If the extension bracket is to be mounted against the front edge of the rear rail in the equipment rack measure from the front edge of the rear rail to the front edge of the front rail m Method B If the extension bracket is to be mounted against the inside surface of the rear rail in the equipment rack measure from the front corner of the rear rail to the front edge of the front rail b Attach the extension bracket to the rear of the stationary track so that the length of the c
42. Licensing If the RFA300A software is correctly installed the first time you use the soft keyboard the My T Soft keyboard registers itself If the RFA300A is not installed the My T Soft keyboard will be loaded as a demo version To undo this uninstall the My T Soft keyboard properly install the RFA300A software and then reinstall the keyboard RFA300A Measurement Set 8VSB 2 3 Operating Basics Home Window 2 4 Menus Toolbar To display the license status select Licensing from the My T Soft program group from Programs in the Start Up menu NOTE The My T Soft keyboard must be installed on the same drive letter as the RFA300A software The Home Window is the point of entry into the measurement set From the home window you access all measurements by clicking on the appropriate icon A measurement begins to run immediately when the window opens Figure 2 2 shows the Home window Refer to the Reference chapter for an overview of each measurement window GA RFA300A Home BBE File Edit iew Setup Gun Stop Tools Window Help BE s Smosting JO oS Fe Frequency Response Amplitude Error Out of Channel Peak Average Group Delay Phase Error Channel Spectrum Phase Noise Signal Noise Signal Monitor Error Vector Magnitude Pilot Amplitude Error ST 9 1 98 1 29 26 PM Figure 2 2 Home window Menu selections are available from any measurement window and the Signal Monitor window Refer to the on
43. NG Warning statements identify conditions or practices that could result in injury or loss of life CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product The following symbols may appear on the product A CAUTION Protective Ground Refer to Manual Earth Terminal RFA300A Measurement Set 8VSB Preface This manual contains operating information for the RFA300A Measurement Set 8VSB The manual consists of the following sections Related Documentation Chapter 1 Getting Started Provides a product description installation procedures connection information and information on getting the instrument ready for use Chapter 2 Operating Basics Provides basic information about using the instrument Chapter 3 Reference Contains an overview of each measurement window and of the 8VSB standard Appendix A Specifications Lists the environmental physical and electrical properties of the instrument Appendix B User Service Provides user service information including general care preventive maintenance troubleshooting and repa
44. OM in the drive In the Control Panel select Multimedia In the Device tab select Audio Devices Select Audio Device and click the Add button Select Unlisted or Updated Driver Specify the E Drivers Essaudio directory as the driver location Click OK to install the ES1879 1869 1878 1868 1887 1888 audio driver Specify the following configuration I O Address 220 Capture DMA 0 Capture IRQ 5 C 7 Appendix C System Recovery Configure the COM Ports Install the Tektronix JPS Software C 8 14 MPU 401 I O Address 330 Playback DMA 3 Remove the CD ROM from the drive and restart the system From the Start menu select Control Panel In the Control Panel select Ports Click the Add button to add a COM Port You need COM1 COM3 and COM4 If COM3 and COM4 are not present add them If COM2 is configured delete it 4 Configure COM1 as follows Input Output Range 3F8 03FF Interrupt Request IRQ 4 Baud Rate 9600 Data bits 8 Parity None Stop bits 1 Flow control None 5 Configure COM3 as follows Input Output Range 03E8 03EF Interrupt Request IRQ 10 Bits per second 2400 Data bits 8 Parity None Stop bits 1 Flow control None 6 Configure COM4 as follows Input Output Range 02E8 02EF Interrupt Request 03 Bits per second 9600 Data bits 8 Parity None Stop bits 1 Flow control None 7 Remove the CD ROM from the drive and restart the system Make sure that the RFA300A System and App
45. RFA300A Measurement Set 8VSB Ly lt i Installation Read this section before attempting any installation procedures This section describes site considerations power requirements and ground connections for your instrument Check the Shipping List Verify that you have received all of the parts of your measurement set Use the shipping lists that came with your instrument to compare against the actual contents of your order You should also do the following m Verify that you have the correct power cord for your geographical area m Verify that you have the CD that contains a backup copy of the installed software Store the CD in a safe location where you can easily retrieve the software for maintenance purposes m Verify that you have a boot disk in case you reformat the hard drive or damage operating system files or drivers NOTE Keep the software packaging available You will need it to enter the Windows NT software registration number when you first power on the analyzer See step 3 under Powering On and Off on page 1 18 m Verify that you have all the other standard and optional accessories that you ordered RFA300A Measurement Set 8VSB 1 5 Installation Operating Requirements Hardware Installation 1 6 Table 1 3 lists the operating requirements Refer to Appendix A Specifications for a complete specification list Table 1 3 Operating requirements Requirement Specification Source voltage 90 250 V
46. RTS 8 CTS 9 RI Appendix A Specifications Table A 5 Rear panel interface characteristics Cont Characteristic SVGA Output Port Ethernet Port Alarm Contacts Description 15 pin female high density D sub SVGA connector Compliant with EIA RS 343A Selectable 640 X 480 VGA 800 X 600 and 1024 X 768 SVGA When internal display is active VGA mode must be selected for this SVGA output port Pin assignments 1 Red 2 Green 3 Blue 4 NC 5 GND 6 AGND 7 AGND 8 AGND 9 key 10 GND 11 NC 12 NC 13 HSYNC 14 VSYNC 15 NC 10 Base T 100 Base T on PCI bus RJ45 Connector Plug amp Plan compatible Bus master mode RJ45 Pin assignments 1 TX 2 TX 3 RX 4 NC 5 NC 6 RX 7 NC 8 NC DB 9 female connector C form relay contacts change state upon an alarm condition Contact Ratings 28 V 2A maximum Pin assignments 1 Normally closed 3 Common 5 Normally open RFA300A Measurement Set 8VSB Appendix A Specifications Power Characteristics Table A 6 AC power source characteristics Characteristic Description Source Voltage Range for the line voltage needed to power the measurement set to meet performance requirements 90 VAC to 250 VAC RMS 47 Hz to 63 Hz continuous range CAT II Fuse Rating 10 A Fast 250 V Maximum Power Consumption 540 Watts max 170 Watts typical Steady State Input Current 6 Amps max 1 9 Amps RMS typical Inrush Surge Current 65 Amps maxim
47. Set 8VSB There is information about the physical instrument and introductory material on how to operate it Once you have a basic understanding proceed to the next chapter Operating Basics to form a conceptual model of how the measurement set works The measurement set provides information on 8VSB digital television signals in conformance with the ATSC Digital Television Standard Signals are acquired at the transmitter and the measurements consist of the following m Complex Modulation Error Ratio m Signal to Noise Ratio m Error Vector Magnitude m Pilot Amplitude Error Out of Channel Emissions m Frequency Response Error m Group Delay Amplitude Error m Phase Error m Phase Noise Error m Peak to Average Ratio m Channel Spectrum display of the selected channel not a measurement The instrument s measurements can run continuously thereby monitoring transmitter performance on a constant basis Operation of the instrument is controlled from the front panel keypad and the touch screen or from an attached keyboard and mouse Figure 1 1 shows the front panel of the measurement set RFA300A Measurement Set 8VSB 1 1 Getting Started Tektronix 7 Figure 1 1 RFA300A 8VSB Measurement Set front panel The measurement set uses the Microsoft Windows NT operating system The Home window is the point of en
48. Upper adjacent Upper adjacent Channel NA channel N 1 RFA300A Measurement Set 8VSB Appendix A Specifications System Components Table A 3 System components Characteristic Mainframe Form Factor Processor System Memory Real Time Clock Retention Time Real time clock CMOS setup and PnP NVRAM BIOS Bus Expansion Slots Graphics Non volatile Storage Floppy Disk drive CD ROM drive Hard Disk Drives Mainframe Interfaces RFA300A Measurement Set 8VSB Description Tektronix manufactured common platform mainframe Rack mountable in standard 19 inch rack One 733 MHz Celeron processor 256 MB Real time clock calendar with a resolution of 1 second or less Projected battery life is10 years Award BIOS field upgradable 32 bit PCI 8 PCI slots 640 x 480 VGA resolution with up to 16 million colors 3 5 inch PC compatible floppy disk drive 1 44 Mbyte high density double sided 2HD PC compatible half height IDE CDROM drive 24X 40 GB EIDE HDD One loop through ethernet port One bi directional RS 232 port One alarm relay out One parallel port printer Two hot pluggable keyboard ports one on the rear panel one on the left front side panel Two hot pluggable mouse ports one on the rear panel one on the left front side panel A 9 Appendix A Specifications Table A 4 Front panel interface characteristics Characteristic Mouse Port Keyboard Port USB Port Touch Panel A 10 Descr
49. User Manual Tektronix RFA300A Measurement Set 8VSB B020000 and Above 071 0697 02 www tektronix com Copyright Tektronix Inc All rights reserved 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 Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix Inc WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If a product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product 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 the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for
50. ackaging for Shipment A Packaging Inspection Your instrument was originally shipped by Tektronix in a carton with packaging components designed to protect the instrument from damage during shipment If you need to ship the instrument to another location it is strongly recommended that you use the original shipping carton and packaging components to provide adequate protection during shipment CAUTION To prevent the loss of your instrument s warranties Tektronix strongly recommends that you use your original shipping carton one that is in good condition when you ship the instrument to another location or when you return the instrument to a Tektronix service center for repair Tektronix cannot honor the instrument s warranties if the instrument arrives at the service center damaged and it was not shipped in its original carton or in a replacement carton and its supporting packaging material purchased from Tektronix If you lose your original packaging material contact your Tektronix representative to obtain replacement packaging When preparing to ship your instrument to another location it is important to inspect your existing packaging materials for condition missing components and vintage m Ifthe condition of your existing packaging materials is poor or if you are missing some of the components it is strongly recommended that you order a new packaging kit The new packaging kit will accommodate both the portable and
51. ag prevents dust moisture or other debris from entering the cabinet Fold the top of the bag neatly over the top of the instrument to make it as flat as possible and seal with packing tape Place the bagged instrument in the inner shipping box The small feet on the bottom of the cabinet go in the square holes in the spacing pad and the larger feet near the front of the instrument go in the larger rectangular holes The bezel end of the cabinet fits over the edge of the spacer pad Place the other spacer pad on top of the instrument Place the side with the small square holes against the side of the box The protective front cover on the bezel of the instrument is not covered by the top spacer pad Close and tape the inner shipping box 3 Place one of the support inserts 4 in the bottom of the outer shipping box film side up as shown in Figure B 2 Place the sealed inner shipping box 3 in the center of the bottom support insert in the outer shipping box 4 Put the second support insert 2 over the inner shipping box film side down NOTE It may be necessary to pre stretch the film in the support inserts by pushing down firmly several times on the top support insert 12 13 14 15 Place the top tray 1 in the box If you are not shipping accessories with the instrument close and tape the outer shipping box 5 When shipping the accessories place the two accessory trays in the top tray then arrange t
52. al amplitude 0 1 0 2 x p p dB p p measured amplitude error dB Plots the signal s instantaneous phase error as a function of amplitude This error is typically caused by variation of an amplifier s phase because of signal amplitude 5 0 2 x p p degrees measured error degree Appendix A Specifications Table A 2 Measurement specifications Cont Characteristic Phase Noise Phase Noise Marker Accuracy Residual Phase Noise Residual Phase Jitter Peak to Average Ratio Marker Accuracy Description 5 dB lt 105 dBc Hz at 20 kHz carrier offset This is the single sideband noise exhibited by the RFA300A local oscillator lt 5 milliradians RMS integrated over the range from 2 kHz to 300 kHz 1 dB OdBorvy r The reference amplitude is the i total transmitter output power including the pilot signal 10 dBpty 20 dBpty 30 dBpty f 40dBptv dBprvis dB as defined by the FCC s measurement method 50 dBpty Out of channel 60 dBpry f measurements are referenced to a 500 kHz noise bandwidth 70 dBpty f RFA300A measurement A capability is limited to less than the FCC s specification 80 dBpty f 90 dBprv The FCC s specification continues down to 110 dBpry below total carrier output K JAN J 2N IN 2 1 y Y Next lower adjacent channel N 2 Lower adjacent channel N 1 Figure A 2 8VSB transmitter emissions mask In channel N if A Next
53. ate only the portable version of the instrument cabinet Note The keyboard mouse and manual boxes do not need to be returned with the instrument for servicing Figure B 2 Repackaging the instrument old packaging RFA300A Measurement Set 8VSB Appendix B User Service The inner shipping box pads and protective bag provide the necessary protection to allow the shipping materials of the outer shipping box to correctly support the product for shipment Pack the inner shipping box as follows 1 If an instrument is to be shipped to a Tektronix field office for repair attach a tag to the instrument showing the following m Owner s name and address Instrument serial number m Description of the problem s encountered and or service required If you have the original packaging material start by placing one of the spacer pads in the bottom of the inner box 3 Position the side of the pad with the smaller square holes against the side of the box as shown in Figure B 3 Ss gt gt lt Bottom spacer pad Outside edge of box Spacer pad positioned inside the bottom of the box Figure B 3 Placement of bottom spacer pad in inner shipping box RFA300A Measurement Set 8VSB B 9 Appendix B User Service 10 11 Place the protective front cover on the front of the instrument Place the instrument in the protective bag The b
54. ation that does not require additional bandwidth expansion although there are extra bits for FEC The Trellis encoder takes an eight bit byte and splits it into four two bit words Every two bit word is compared with previous words A three bit code is assigned to each two bit word that describes the transition from the previous word to the current one Therefore for every two bits in the encoder produces three bits out The Trellis decoder Viterbi in a receiver uses the three bits to reconstruct the evolution of the data stream from one two bit word to the next The Trellis and Viterbi coding scheme is very effective in managing white noise RFA300A Measurement Set 8VSB 3 15 Reference Multiplexer Supplementary sync signals are added to a multiplexer to form the 8VSB baseband signal Each of the eight levels represents a symbol value After every 828 symbols a Segment sync is sent The Segment sync is two level binary data that is 10 constellation units peak to peak in amplitude and four symbols long This makes each 8VSB data segment 832 symbols long as shown in Fig ure 3 16 The Segment sync has two roles it replaces the sync byte that was removed before the RS encoding and it increases the signal robustness It is easily located by the receiver s decoder in the presence of noise
55. ause compression of peaks This distorts the signal causing out of channel emissions and lower signal to noise ratio The measurement is calculated by taking the percentage of time that the signal is greater than the average amplitude This measurement and the ideal are both plotted on the Peak to Average graph The Peak to Average and Channel Spectrum measurement window is shown in Figure 3 10 The measurement window contains the following areas m Listing of measurement results m A selection control for setting the target operating point in the peak to aver age graphic Select the target operating point method in the setup refer to Peak to Average Setup next m Graphics showing the measured and ideal peak to average power curves and the channel spectrum The channel spectrum is another tool to assess a transmitter s amplitude linearity To view this graph click on the Channel Spectrum tab OA RFA300A Peak Average amp Channel Spectrum File Edit View Setup Bun Stop Tools Window Help rE E i Smoothing High _ swe lt lt Back Fud gt gt amp l z Pp a Peak to Average Peak to Average Channel Spectrum 2 Results listing 7 Cumulative Distribution of Peak Power L_ ActuaHo ldeal Difference vs Average Power Target Operating Point Target operating Planning Factor dB E point control cei Me of time peak exceeds average 2 3 4 6 6 7 8 9 4 Pesk to Average d
56. ay to solve software problems is to reinstall the software Refer to Appendix C Software Installation for instructions on reinstalling software RFA300A Measurement Set 8VSB B 3 Appendix B User Service Hardware Problems Table B 1 Troubleshooting Symptom Instrument does not power on Instrument powers on but does not complete the power on sequence Power on diagnostics fail Instrument does not recognize accessories such as monitor printer or keyboard Windows NT comes up but the measurement set application does not Windows NT comes up in Safe mode Instrument will not power off with On Standby switch Table B 1 lists some of the symptoms of software problems and possible solutions If you suspect problems with the software contact your local Tektronix representative or refer to Contacting Tektronix in the Preface Hardware problems can have several causes The first step to identifying a problem is to review the installation instructions in this manual to verify that you have properly installed the instrument The second step is to determine if the problem is in the mainframe or the measurement set s modules If you are certain that you have installed the instrument correctly run the extended diagnostics located under the tools menu to identify any problems with the individual modules Table B 1 lists some of the symptoms of hardware problems and possible solutions Possible causes and recommended a
57. ckaging Appendix C Software Installation Describes how to format a hard drive and reinstall the operating system software and associated hardware drivers Appendix D Mask File Formatting Describes how to format a mask file using a text editor In addition to this user manual the following documentation is available for your measurement set RFA300A Measurement Set 8VSB The online help provides information about using the measurement set To view online help select Help Topics from the Help menu The optional RFA300A Measurement Set 8VSB Service Manual provides board level service information Preface Contacting Tektronix Phone Address Web site Sales support Service support Technical support 1 800 833 9200 Tektronix Inc Department or name if known 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA www tektronix com 1 800 833 9200 select option 1 1 800 833 9200 select option 2 Email techsupport tektronix com 1 800 833 9200 select option 3 6 00 a m 5 00 p m Pacific time This phone number is toll free in North America After office hours please leave a voice mail message Outside North America contact a Tektronix sales office or distributor see the Tektronix web site for a list of offices RFA300A Measurement Set 8VSB Getting Started Product Description This chapter provides basic information about using and installing the RFA300A Measurement
58. contents Standard F1 key Print Screen Copies the screen to the clipboard Alt plus Print Screen copies the active window START Key Numbers 0 to 9 period and minus sign Opens the Windows Start menu Standard number keys most have second Shift and third Function functions Control name Mechanism Description Up Arrow Button Use to navigate and change focus from one window function to another Select Button Same as the space key Adjust Knob Rotary encoder Multi function control increment decrement field values or screen element size or position Run Stop Button with 3 color Starts or stops a measurement LED indicates LED whether product is in Run or stop state Esc Button Standard Escape key Tab Button Standard Tab key Print Prints current measurement using the same print settings as for the previous print Touch an Toggles Touch Screen state on and off LEDs Fetn Button with LED Modifier for numeral keys to create keys F1 through F12 Locked mode key feature LED indicates when on Del Deletes selected text or object Backspace key t Enter key Ctrl Button with LED Control key LED indicates when keypad is in control mode Refer to Table 2 2 for a list of control functions Locked mode key feature Alt Button with LED Alternate key LED indicates when keypad is in alternate mode Locked mode key feature Space Space bar or use as mouse button 1 Shift Button with LED Shift ke
59. ctions Verify that the power cord is connected to the instrument and to the power source Check that the instrument receives power when you press the On Standby switch check that fans start and that front panel indicators light Check that power is available at the power source Instrument failure contact your local Tektronix service center Check for and remove any disk in the floppy disk drive make sure instrument boots from the hard disk drive Possible software failure or corrupted hard disk Refer to Software Problems at the beginning of this chapter Isolate problem to faulty platform or to faulty module Contact your local Tektronix service center Check that accessories are properly connected or installed Contact your local Tektronix service center Instrument not set up to start measurement set application at power on start application from the desktop by double clicking on the RFA300A icon Make sure the Start Programs Startup folder contains a shortcut to the measurement set application Faulty or corrupt software refer to Software Problems at the beginning of this chapter Exit the Safe mode and restart the instrument Windows NT operating system problem Try powering off the instrument using the Windows NT shutdown procedure If the instrument still does not power off push and hold the On Standby switch for five seconds to power off the instrument RFA300A Measurement Set 8VSB Appendix B User Service Rep
60. de Error window and Peak Average and Channel Spectrum window You can create a mask for those measurements that include mask testing Refer to Mask file formatting in the online help Viewing Results Once you open a measurement window notice that the measurement runs and provides results soon after the window opens To stop the measurement press the Stop button located in the toolbar To restart press the Run button Saving Results After making a measurement you can save your results to a database by doing the following 1 Go to the File menu and select Save Results As 2 Enter name destination and any notes you want saved with the results Results can be printed or exported to other applications using the Report dialog box selected in the File menu You can also recall results for further study at any time Signal Monitor The Signal Monitor allows you to continuously monitor one or more of the other measurement s numeric results in one window To select the measurements to monitor do the following 1 Open the Signal Monitor window 2 Click Setup in the Toolbar 3 Select the measurements you want to monitor 4 Select how often you want your results to be automatically saved or select Off to disable the function RFA300A Measurement Set 8VSB 2 7 Operating Basics 2 8 5 Ifyou selected At Intervals in step 4 enter the amount of hours to save between AutoSave actions NOTE An indication of how long the
61. ded use 3 EN 61326 Minimum Immunity Test requirement 4 Performance Criteria Signal Noise Ratio greater than or equal to 38 dB A 16 RFA300A Measurement Set 8VSB Appendix A Specifications Table A 10 Certifications and compliances Cont Category Standards or description Installation Overvoltage Category Terminals on this product may have different installation overvoltage category designations The installation categories are Pollution Degree Laser Classification Safety standards Safety Certification Compliance Temperature operating Altitude maximum operating Equipment Type Safety Class Installation Overvoltage Category Pollution Degree Supply Voltage Range Current Rating Fuse Rating Relative Humidity maximum operating RFA300A Measurement Set 8VSB CAT III Distribution level mains usually permanently connected Equipment at this level is typically in a fixed industrial location CAT II _Local level mains wall sockets Equipment at this level includes appliances portable tools and similar products Equipment is usually cord connected CATI Secondary signal level or battery operated circuits of electronic equipment A measure of the contaminates that could occur in the environment around and within a product Typically the internal environment inside a product is considered to be the same as the external Products should be used only in the environment for which the
62. e 1 6 Mounting the stationary section to the front rail of the equipment rack cece cece cece cece eee E Eer eens 1 10 Figure 1 7 Stationary bracket extension bracket and attaching SCrEWS 2 0 2 cc ccc cece cece reer e ence e eee eees 1 10 Figure 1 8 Installing the instrument into the equipment rack 1 11 Figure 1 9 Transmitter connection 00 cece cece eens 1 14 Figure 1 10 Rear view ccc cece ccc c cece cece rene eens 1 15 Figure 1 11 Keyboard and mouse connections 0 1 16 Figure 1 12 On Standby switch ccc eee e cere eens 1 17 Figure 1 13 System setup cc cece cece cece eee e eee eees 1 19 Figure 2 1 Front panel 2 ccc cece eee c eee cece eeees 2 1 Figure 2 2 Home window c ccc cc cece ec ececececeees 2 4 Figure 2 3 Toolbar 2 0 0 0 ccc cece cece cee eee cece eeees 2 5 Figure 2 4 Help menu ccc cece eee c eee e eee eeeeees 2 9 Figure 3 1 Out of Channel Emissions measurement window 3 2 Figure 3 2 Out of Channel Emissions setup 006 3 2 Figure 3 3 S N EVM and Pilot Amplitude measurement window 3 3 Figure 3 4 Phase Noise Measurement window 2 0 3 5 Figure 3 5 Phase Noise setup 0 ccc ee cee ee ccc ee cece 3 5 Figure 3 6 Frequency Response and Group Delay measurement WAN OW esonte Saves SG E028 acess AUPE Slave 6 E acaene E 3 7 Figure 3 7 Frequency Response and Group Delay setup
63. e connectors are internally terminated in 50 Q so no external termination is needed If the input signal strength is more than 1 watt but no greater than 2 watts make sure that the external 10 dB attenuator is installed Power on the instrument Click the Setup button on the toolbar Click on the System tab to display the System page shown in Figure 1 13 RFA300A Measurement Set 8VSB Installation Instrument Setup 7 Limits System Instrument Tuning FF Input pemi Yatoa F 686 31 aA a r Results Database Fle Using File Change File Size KBytes 1 210 creates Create New Last Modified File Notes OK Cancel Apply Help Figure 1 13 System setup 6 Click on the Input button to select the RF Input channel Input 1 or Input 2 to which you connected the transmitter Only one of these channels can be input at a time 7 Enter the desired frequency NOTE The frequency is the pilot frequency not channel center Refer to Selecting channel frequency in the online help 8 Click Apply and then click the Input Signal Power button 9 Check to see if the RF input signal level is in the OK range if it is not then adjust the output of your transmitter accordingly 10 Close the Input Signal Power dialog box and click OK to close the System Setup window RFA300A Measurement Set 8VSB 1 19 Installation Incoming Inspection Extended Dia
64. each measurement RFA300A Measurement Set 8VSB SEE Operating Basics Front Panel Keys This chapter describes the basic operation of the RFA300A Measurement Set 8VSB For operating details refer to the online help The front panel controls are used to operate the measurement set without the mouse or keyboard Figure 2 1 shows the front panel Tektronix RFA 300A Measurement Set 8VSB Figure 2 1 Front panel You can use the front panel keys as an alternative to a keyboard All keys and key combinations critical to operating the instrument or for basic Windows tasks are available via the front panel To enter letters of the alphabet or special characters use the soft keyboard feature refer to Entering text from the screen in the online help For key combinations it is unnecessary to hold down more than one key at a time For example you can press SHIFT in the hex keypad and then press another key to accomplish a Shift key combination The same is true for other key combinations such as CTRL and ALT keys This feature is often referred to as a locked mode Table 2 1 lists front panel key controls and describes their use RFA300A Measurement Set 8VSB 2 1 Operating Basics Table 2 1 Front panel key controls indicate Touch Screen On Off state Menu application key Same as mouse button two Help Opens the Help
65. es have the following generic format Mask files are stored as text files You can create them using a text editor The extension on a mask file must be of the form mskxx where xx is an integer representing the ResultID value for the mask test result for this file see Line 1 below Mask files must be placed in C RFA300 Masks to be recognized The format of mask files is as follows Lines are delimited with the newline character Numbers on a line are comma delimited the newline character is typically generated with a carriage return in most text editors Line lengths are limited to 200 characters maximum Line 1 contains the ResultID value for the mask test result for this file Refer to Table D 1 Line 2 contains a note associated with the file Line 3 contains a number that represents the number of points in the mask Lines 4 through x each contain one point in the mask The format of this line is x yl y2 or y x1 x2 Normally masks are of the first form If the mask has a single value per x location it will be x y1 otherwise if it has two values per x location for example a min and a max it will be of the form x y1 y2 A mask of the form y x1 x2 is one which does not necessarily have a value for all x locations x and y numbers are in integer or scientific format Table D 1 lists the ResultID for each type of mask RFA300A Measurement Set 8VSB D 1 Appendix D Mask File Formatting
66. etwork before beginning this procedure RFA300A Measurement Set 8VSB C 3 Appendix C System Recovery 1 Power up the RFA300A Measurement Set 8VSB with the RFA300A System and Application Restore Media CD ROM in the CD ROM drive 2 Enter restp1 bat at the DOS prompt 3 Click Continue when prompted 4 In the warning dialog box confirm with Yes A window will show the progress of the restore function 5 Remove the CD ROM from the drive and restart the system when prompted Easy Restore If Partitions 1 and 2 are both corrupted or you want to restore the hard drive to Partitions 1 amp 2 factory status use the Partition 1 procedure on page C 4 except replace restp1 bat with restdisk bat This will remove all of the data from both partitions Create Partition 2 To restore only Partition 2 to factory status removing all data from Partition 2 without removing data from Partition 1 you can use the following procedure This procedure uses the Windows NT Disk Administrator tool to create a new Parition 2 After you create Partition 2 using this procedure if you later use the Easy Restore Partition 1 procedure on page C 4 Partition 2 will be preserved in most cases NOTE You typically do not need to use this procedure the Easy Restore procedures are normally sufficient to restore Partitions 1 and 2 To create Partition 2 perform the following steps 1 From the Start menu select Program Administrative Tools and then D
67. frequency synthesizer system Phase noise can reduce the S N ratio The measurement set performs this measurement by calculating the residual phase jitter This jitter is what is left after removing the effects of other transmis sion errors The Phase Noise measurement window is shown in Figure 3 4 The measure ment window contains the following areas m Listing of measurement results m A mask test pass or fail indicator m Cursor direction controls m Listing of each cursor s position and the difference between the two m Graphic showing the pilot s phase noise spectral density measured in dBc Hz versus frequency The selected mask is overlaid on the display if you enabled any in the setup see Phase Noise Setup next RFA300A Measurement Set 8VSB Reference GR RFA300A Phase Noise File Edit View Setup Run Stop Tools Window Help jula Smoothing Hin gt Q Sion lt lt Back Fedo m e Results listing gt Integrated Phase Noise 2 2 mrad Mask indication gt Phase Noise Mask Test Noise Pwr BcHe X 102 32 A 133 Running Curent 9 10 98 4 47 393PM _ Tektronix Cursors Cursor directions Figure 3 4 Phase Noise Measurement window Phase Noise Setup Click the Setup button in the toolbar to enable and select a mask for the measurement window The setup dialog box contains the control for turning masks on and off plus a list of available masks You can create
68. gnostics Signal Power Measurement Functionality 1 20 Incoming inspection consists of verifying basic operation of the measurement set The Power on diagnostics check basic functionality These diagnostics run every time you power on the instrument If a failure is detected the Power on diagnostics dialog box opens with the failed test indicated Run the extended diagnostics to test functionality in more detail To run extended diagnostics do the following procedure 1 Go to the Tools menu and select Diagnostics 2 Click the Extended Diagnostics tab 3 Select All Modules and Tests and then select One Time 4 Click Run and observe that a failure does not occur If a failure does occur contact Tektronix using the information provided in the Preface of this manual or click on Support located under the Help menu Perform the procedure on page 1 18 titled Selecting Channel Frequency and verify that the RF input signal has sufficient power and is connected to the selected RF input 1 or 2 Open each measurement window and verify that activity is occurring For example to check Frequency Response and Group Delay do the following procedure 1 From the Home window click on the Frequency Response and Group Delay icon to open the measurement window 2 Verify that a signal is visible in each waveform graphic within a few seconds 3 Verify that the readout for both measurements is updating Perform the same procedure for
69. he accessories in the trays Close and tape the outer shipping box 5 Attach the appropriate shipping documents needed to ship the instrument to its destination RFA300A Measurement Set 8VSB EEE 4a Appendix C System Recovery Overview If you have problems with either BIOS configuration or system application software use the procedures in this section to restore the system to factory default installation and configuration NOTE If you are restoring software after replacing the hard disk drive with one you ordered as a replacement from Tektronix follow the instructions provided with the hard disk drive replacement If you are restoring software after reformatting the hard drive perform all of the procedures in this section in sequence These procedures require the RFA300A System and Application Restore Media CD ROM which was shipped with the RFA300A Measurement Set 8VSB Installation should only be performed by a qualified technician who is familiar with installing drivers and configuring for networking These tips apply to the procedures in this section m Use default settings unless otherwise indicated in the following procedures m These procedures use drive e as the CD ROM drive m At the end of some steps you are instructed to restart the system To do this if you are prompted to restart remove the CD ROM from the drive and select Yes If not prompted remove the CD ROM from the drive select Shutdown
70. holes in the rear rails that correspond to the same level as the front rail holes selected If the rear rail mounting holes are tapped the bar nut is not used to attach the extensions If the rear rail mounting holes are not tapped use the bar nut on the inside of the rail as shown in Figure 1 5A or use suitable captive nut clips not supplied Figure 1 5B shows the extension bracket mounted to the inside surface of the rear rail Method A Method B P Q 2 Q Rear rail Rear rail gt Q Q Q a a yo OAs C 40 32 PNH gE n EG Ss screws a a 2 o WAN Q O AD 6 Ze A 5 A 2 0 Bar nut use if rear rail is not tapped A2 Q Figure 1 5 Attaching the extension bracket to the rear rail of the equipment rack RFA300A Measurement Set 8VSB 1 9 Installation b Mount the stationary sections with the bracket extensions to the front rails If the front rails are not tapped use the bar nuts Refer to Figure 1 6 N Pa e a a NY S a LA 2 lt Barnut z ve use if front rail N a P is not tapped Q Q fi Screws Figure 1 6 Mounting the stationary section to the front rail of the equipment rack 4 Tighten the screws attaching the extension bracket to the stationary section Refer to Figure 1 7 sSVgge see Wy Figure 1 7 Stationary bracket extension bracket and attaching screws 1 10 RFA300A
71. ifying 1 20 Measurement specifications A 4 Mechanical characteristics A 18 Menus 2 4 MER complex window 3 3 Microsoft Explorer options C 5 My I Soft keyboard 2 3 My T Soft Keyboard driver C 9 NT Services and Protocols C 7 0 On Standby switch 1 17 Online help 2 9 Operating requirements 1 6 Out of Channel Emissions window 3 1 Out of Channels Emissions Setup 3 2 P Packaging for shipment B 6 Packaging replacement B 6 Peak Transient Power Glossary 2 Peak to Average setup 3 11 Peak to Average window 3 10 Phase Error Glossary 3 Phase Error setup 3 9 Phase Error window 3 8 Phase Noise Glossary 3 Phase Noise Setup 3 5 Phase Noise window 3 4 Phone number Tektronix x Pilot Amplitude window 3 3 Portable installation 1 12 Power on procedure 1 17 Preventive maintenance B 1 cleaning B 1 compact disk drive B 2 display cleaning B 2 keyboard B 3 mouse B 3 Index 2 Problems hardware B 4 software B 3 Product description 1 1 Product support contact information x R Rackmount installation 1 7 Recover software C 1 Repacking for shipment B 5 B 10 Requirements for operating 1 6 Restore BIOS settings C 3 Result definition Glossary 3 Results Database Glossary 3 RF connections 1 14 RFA300 Measurement Set 8VSB description 1 1 RFA300A software C 12 S Saved files bac
72. include sound saving results email and by activation of an external device see Figure 1 10 on page 1 15 for the alarm connection location How often or when to be notified Figure 3 13 shows the Signal Monitor Setup Instrument Setup Signal Monitor Setup Limits System Measurements to Monitor Frequency Response amp Group Delay Amplitude amp Phase Errors Out of Channel Emissions Peak Average amp Channel Spectrum Phase Noise Signal Noise amp EVM SSS S S m AutoS ave of Signal Monitor Results AutoS ave fort z Interval i oo 4 hours Remaining disk space based on current settings File Size m Notification Criteria Notify on Alarm and Error only Notify on all violations Alarm Caution Error No Notification Notification Actions disabled Violations indicated in the display only m Notification Actions Beep I Save Results Email Settings I Switch Closure Suspend Actions ea ae e gt Notification controls Figure 3 13 Signal Monitor RFA300A Measurement Set 8VSB Setup 3 13 Reference 8VSB Overview Data Randomizer Reed Solomon Encoder This section provides an overview of the 8VSB transmitter For a complete understanding of the transmitter refer to Advanced Televisions Systems Committee ATSC Digital Television Standard document A 53
73. instrument can run before running out of space is provided Click the File Size button to limit the size of your result database files Refer to Limiting the size of a results database file in the online help 6 Select when to be notified under Notification Criteria if a caution alarm or error occurs You can also select not to be notified 7 Ifyou selected to be notified in step 6 select the notification action NOTE Before you can set up Email notification you must install a Messaging Application Program Interface MAPI compliant Email application 8 Click the Email Settings button to change Email parameters NOTE Selecting Send Email opens the Email dialog box if the destination is not yet specified You can enter the address include a message and send the current results or only results that have violated limits 9 Click Suspend Actions and select how often you want to be notified 10 Click OK to close 11 Click the Setup s OK button to apply your selections and return to the Signal Monitor window RFA300A Measurement Set 8VSB Operating Basics Online Help Help Topics What s This Help The online help gives detailed information about the operation of the measure ment set Look in the online help for details about user selections and controls that are not described in this manual To access online help go to the Help menu as shown in Figure 2 4 File Edit View Setup Bun Stop To
74. iption PS2 compatible mouse port using a mini DIN connector Pin assignments 1 data 4 5V 2 NC 5 clock 3 ground 6 NC PS2 compatible keyboard port using a mini DIN connector Pin assignments 1 data 4 5V 2 NC 5 clock 3 ground 6 NC Series A USB receptacle Pin assignments 1 Vous 3 data 2 data 4 GND Standard 10 4 in touch panel pointing device mounted on the surface of the TFT display connecting to the Front Panel Interface Board RFA300A Measurement Set 8VSB Appendix A Specifications Table A 5 Rear panel interface characteristics Characteristic Description Parallel Interface Port Port supports standard Centronics mode Enhanced Parallel Port EPP or Microsoft high speed mode ECP and uses a 25 pin D connector Compliant with IEEE P1284 DB25 for bi directional Parallel Peripheral Interface for Personal Computers 1284 1994 IEEE Pin assignments for compatible mode 1 SRTB DATAO DATA DATA2 DATA3 DATA4 DATAS DATA6 DATA7 10 ACK 11 BUSY 12 PMT 13 SEL OMON DO F amp F WP 14 AUTOFEED 15 ERR 16 INIT 17 SELIN 18 GND 19 GND 20 GND 21 GND 22 GND 23 GND 24 GND 25 GND See IEEE P1284 A in IEEE Standard 1284 1994 for pin connection definitions for other modes Serial Interface Port on back panel 9 pin male D sub connector RS232 Pin Assignments 1 DCD 2 RXD 3 TXD 4 DTR 5 GND RFA300A Measurement Set 8VSB 6 DSR 7
75. isk Administrator Click CD ROM From the Tools menu select Assign Drive Letter Select E for the CD ROM ca E Click the unpartitioned space on disk 1 N CAUTION It is important to select Create Extended in the following step 6 From the Partition menu select Create Extended to create an extended partition Use all of the remaining free space 7 From the Partition menu select Commit Change Now 8 Click within the partition that you just created C 4 RFA300A Measurement Set 8VSB Appendix C System Recovery 9 10 11 Miscellaneous Setups RFA300A Measurement Set 8VSB From the Partition menu select Create to create a logical drive Use all of the free space Assign drive letter D if needed From the Partition menu select Commit Change Now From the Tools menu select Format the new partition Format it with the NTFS file system Configure automatic logon to allow the RFA300A to automatically log on when you start the system or reboot as follows a From the Start menu run E tools autologon exe where E is the CD ROM drive letter b Enter the user name Administrator c Enter the password RFA300A d Click OK Set auto hide for the task bar as follows a From the Start menu select Setting and then Taskbar b Check Auto Hide c Click OK Set the Event Viewer as follows a From the Start menu select Programs Administrative tools and then Event Viewer b From
76. k for the measurements is shown in Figure A 2 This mask lowers the power radiated in the adjacent channel to a level of 44 dB below the average power transmitted Other measurement bandwidths may be used as long as the appropriate correction factors are applied In the event interference is caused to any service greater attenuation may be required gt 71 dBoty dBptv is dB as defined by the FCC s measurement method 2 dB over a range of 12 MHz with respect to the edges of the channel in use 3 dB Shows the integrated power present in the upper and lower adjacent channels Plots the deviation of the transmitter s spectral amplitude as a function of frequency with respect to the ideal 8VSB root cosine transmitter curve Measurements are made from 0 to 5 68 MHz with respect to the pilot frequency of the signal under test 0 25 0 05 x p p measured amplitude deviation dB 0 25 dB peak to peak error over the frequency range Plots deviation of the transmitter s spectral group delay response from the ideal The ideal group delay response is zero variation over the channel bandwidth From 0 kHz to 5 68 MHz with respect to the pilot frequency of the signal under test 4 0 2 x p p measured group delay deviation ns 8 ns peak to peak over the frequency range Plots the transmitter s instantaneous amplitude error as a function of amplitude This error is typically caused by an amplifier s gain changing because of sign
77. king up 2 10 Saving results 2 7 Security Components C 11 Selecting the channel frequency 1 18 Selecting the RF input channel 1 18 Service support contact information x Service user preventive maintenance B 1 Session definition Glossary 3 Setup Amplitude Error 3 9 definition Glossary 3 Frequency Response 3 7 Group Delay 3 7 Out of Channels Emissions 3 2 Peak to Average 3 11 Phase Error 3 9 Phase Noise 3 5 Signal Monitor Setup 3 13 Shipping B 5 Signal Monitor tutorial 2 7 Signal Monitor setup 3 13 Signal Monitor window 3 12 Signal to Noise Glossary 3 Signal to Noise window 3 3 Soft keyboard 2 3 Soft keyboard driver C 9 Soft power off C 9 Software problems B 3 Software recovery C 1 Sound chip driver C 6 C 7 Specification measurement A 4 Specification tables definition A 1 Starting measurements 2 7 Startup disks 1 13 Stopping measurements 2 7 system component characteristics A 9 RFA300A Measurement Set 8VSB Index System Recovery C 1 T Target Operating Point Peak to Average 3 11 Technical support contact information x Tektronix contacting x Touch screen 2 3 Touch screen driver C 9 Troubleshooting B 3 Tutorial 2 6 U URL Tektronix x User service general care B 1 preventive maintenance B 1 V Verifying functionality 1 20 RFA300A Measurement Set 8VSB Verifying i
78. lication Restore Media CD ROM is in the CD ROM drive 1 From the Start menu run E Drivers Tekjps Setup exe RFA300A Measurement Set 8VSB Appendix C System Recovery Oui ae ee aS Click Next in the Choose Destination Directory dialog box Click Next to continue Remove the CD ROM from the drive Check Yes I want to restart my computer now and click Finish Install the Soft Power Off Make sure that the RFA300A System and Application Restore Media CD ROM is in the CD ROM drive 1 2 From the Start menu run E Drivers PowerOff Poweroff bat Remove the CD ROM from the drive and restart the system Install the My T Soft NT Make sure that the RFA300A System and Application Restore Media CD ROM is Soft Keyboard Driver in the CD ROM drive Sey i hy Ne ay tes Re LE 10 From the Start menu run E Drivers Mytsoft SETUP EXE Follow the default options to install the driver Remove the CD ROM from the drive and restart the machine as instructed After restart replace the CD ROM in the drive In the My T Soft group double click My T Soft Setup to start the setup On the My T Soft Setup utility click on the keyboard Make sure the International Keyboard is set to US Click OK Click Exit to exit My T Soft Setup Remove the CD ROM from the drive and restart the system Install the Touch Base Make sure that the RFA300A System and Application Restore Media CD ROM is SC3 Touch Screen Driver in the CD
79. line help for a description of each menu selection All toolbar selections are available from any measurement window and the Signal Monitor window The toolbar provides an easy method for accessing frequently used functions Figure 2 3 shows the toolbar and Table 2 3 lists the toolbar functions RFA300A Measurement Set 8VSB Operating Basics Recall Results Print File Edit iew Setup Bun Stop Tools Window Help alaa Save Edit Results Setup Figure 2 3 Toolbar Smoothing JO Smoothing Run Stop What s Selection Button Back amp Forward This Fiun lt lt Back Eidi K Run Home Status Table 2 3 Toolbar functions Toolbar selection Recall Results Save Results Print Edit Setup Smoothing Selection Run Status Run Stop Button Back and Forward Home What s This RFA300A Measurement Set 8VSB Function Recalls a previously saved measurement Save the results of the current measurement Prints one copy of the current measurement Provides setup controls for the instrument and measurements Selects the degree for reducing the variations of the waveform and results Smoothing is accomplished differently for each type of measurement Refer to the online help for each measurement window to determine how smoothing is accomplished Shows when the measurement is running or stopped Red is stopped and green is running Begins or stops performing measurements Back opens the
80. log box b Click OK but do not enter a password c Click OK in the Set Windows Password dialog box but do not enter a password RFA300A Measurement Set 8VSB 1 17 Installation 3 Follow the instructions on the screen and enter the Windows NT Product Identification number located above the bar code on the Windows NT software package that came with your instrument Enter other information as required The internal setup software automatically configures your instrument and installs all required devices After the setup software completes configura tion the measurement set application will start The next time you power on the application starts automatically You do not need to perform step 3 again Powering off Always power off the instrument using the Windows NT shutdown process and then press the On Standby switch NOTE Once a month power down and restart the instrument The measurement set performs an internal calibration as part of the power on procedure This ensures the optimum measurement accuracy of the instrument Selecting RF Input Channel and Channel Frequency Use the following procedure to select the RF Input channel select the channel frequency and verify that the RF input signal has sufficient power Without sufficient power at the test signal input the instrument cannot perform accurate measurements 1 Connect your transmitter to one of the RF input connectors shown on page 1 15 th
81. nal to Noise Error Vector Measurement and Pilot Amplitude Measurement window For more in depth information refer to the online help The S N EVM and Pilot Amplitude Error measurement window provides an overview of the transmitter s 8VSB signal quality Signal to Noise S N Error Vector Magnitude EVM and Complex Modulation Error Ratio MER are similar measurements The calculations for each are slight deviations from each other Refer to S N EVM and Complex MER calculations in the online help Figure 3 3 shows the measurement window with the constellation display The window contains the following areas m A listing of measurement results m Two display graphics constellation and eye diagram A control for turning equalization on and off Equalization removes linear distortions from the measurements This allows you to distinguish among causes of poor signal quality A control for subtracting the pilot amplitude from the horizontal axis RFA300A Signal Noise amp EVM File Edit View Setup FRun Stop Tools Window Help guja E smecthing OH Q_s Constellation Eye Diagram Signal Noise EVM Results listing Complex MER Pilot Amplitude Error T Use Equalizer Subtract Pilot Offset from Symbol axis Running Curent 9 10 98 4 40 21 PM Tektronix Figure 3 3 S N EVM and Pilot Amplitude measurement window S N The S N measurement provides a broad measure of impairments in the
82. nput signal power 1 18 VIA display driver C 10 Viewing results 2 7 W Web site address Tektronix x Window Amplitude Error 3 8 Channel Spectrum 3 10 Complex MER 3 3 Error Vector Magnitude 3 3 Frequency Response 3 6 Group Delay 3 6 Home 1 2 2 4 Out of Channel Emissions 3 1 Peak to Average 3 10 Phase Error 3 8 Phase Noise 3 4 Pilot Amplitude Error 3 3 Signal Monitor 3 12 Signal to Noise 3 3 Windows NT Service Pack C 10 Index 3 Index Index 4 RFA300A Measurement Set 8VSB
83. nsertion VSB Modulation A small DC offset is added to the baseband signal to produce a pilot at the carrier frequency of the resulting modulated spectrum The pilot is 0 3 dB of average signal power and is used by the receiver for carrier acquisition The receiver then uses the Segment sync to lock on the symbol timing The 8VSB signal is transmitted as a single sideband suppressed carrier signal The baseband signal is typically mixed with a 44 MHz signal and passed through a root raised cosine filter The output is a 44 MHz IF signal upper sideband only with root raised cosine response Closed Loop Transmitter Control Correction Processor This section provides a brief overview of the closed loop feedback system that can be used to control a transmitter exciter to maintain the signal within required transmitting parameters A correction processor is either a closed loop correction system or an open loop correction system depending on how advanced the transmitter is The correction processor is used to shape the exciter signal to precorrect for frequency response and envelope delay errors in the transmitter power amplifier Precorrection can also reduce non linear errors A closed loop system samples the outgoing RF to determine what type and how much correction is needed and adjusts the precorrection accordingly A less advanced transmitter can have an open loop precorrection system that requires manual adjustments to the controls in
84. o qualified service personnel 80 for temperatures up to 31 C decreasing linearly to 50 at 40 C A 17 Appendix A Specifications Mechanical Physical Characteristics Table A 11 Mechanical characteristics Characteristic Classification Overall Dimensions Height without feet Width Depth Weight RFA300A Shipping Weight Construction Materials A 18 Description Transportable platform intended for design and development bench lab based applications 8 9 inches 22 5 cm 16 75 inches 42 5 cm 21 5 inches 55 0 cm 33 Ib 15 0 kg without accessories 60 Ib 27 2 kg Chassis parts are constructed of aluminum alloy and aluminized steel front panel and trim pieces are constructed of plastic circuit boards are constructed of glass and or ceramic glass laminate RFA300A Measurement Set 8VSB aE eee Appendix B User Service General Care ZN This appendix describes general care and service procedures for the RFA300A Measurement Set 8VSB Instrument and module service troubleshooting procedures are located in the service manual refer the Preface for a list of manuals Protect the instrument from adverse weather conditions The instrument is not waterproof Do not store or leave the instrument where the LCD display will be exposed to direct sunlight for long periods CAUTION To avoid damage to the instrument do not expose it to sprays liquids or solvents Preventive Maintenance
85. ols Window Help ajala n Smoothing or z o Fiun Click for Topic help e lt Back Click for What s This help on selected object Figure 2 4 Help menu Help topics tell you how to perform tasks and describe software features and selections shown on the screen There are two types of help topics reference topics and task topics Reference topics describe application features such as the measurement windows Reference topics may also describe concepts Reference topics are available through the Help menu and through Help buttons in dialog boxes From the Help menu click Help Topics and locate the topic using the Contents or Index tab The Index tab is easier to use As you enter a word into the text field Help searches for and highlights the topic if one can be found If not try the Find tab Enter a word or phase and help will display all topics that contain the word or phrase The Help on Window selection in the Help menu provides reference help for the current window Task topics provide procedure information on how to perform specific tasks Task topics are available through the Help menu From the Help menu click Help Topics and locate the topic using the Contents or Index tab What s This help provides a short description of the control or screen feature selected First click the What s This button on the toolbar as shown in Figure 2 4 and then click the item of interest RFA300A Measurement Set 8VSB 2 9
86. ombined assembly is approximately that of the measure ment taken in step a above Use the screws and bar nuts provided with the chassis tracks Leave the screws loose 2 Select the appropriate mounting holes in the front rails of the equipment rack observing the clearance measurements shown in Figure 1 4 The front panel of the rack adapter is designed to fit in an 11 inch high opening RFA300A Measurement Set 8VSB 1 7 Installation Method A Method B Rear rail f Rear rail OOO OOP EERE Extension bracket Stationary track Automatic latch Use this measurement Stop latch NOTE Right hand and left hand stationary sections are designated by the hole RH and the LH marked on the rails Stop latch holes should be towards the bottom when slides are in place The right hand rail is shown above Figure 1 3 Attaching the extension brackets to the stationary tracks E T O O O d k 0 500 in _ _ oy 18 1 75 in O y Adjacent equipment Figure 1 4 Mounting hole selection on the front rails of the equipment rack REV SEP 1994 1 8 RFA300A Measurement Set 8VSB Installation 3 Mount the stationary sections with extension brackets attached to the front and a rear rails of the equipment rack Install the rear of the stationary section in front of behind or beside the rear rail of the equipment rack Use the mounting
87. ompact disc CD drive requires routine maintenance to operate at maximum efficiency The CDs can be damaged if dirt and dust accumulate on the surface Store the CDs in their protective containers where they will not be exposed to dust or dirt CAUTION Electrostatic discharge ESD can damage components in the CD ROM drive Do not touch lens or exposed metallic parts on the platter Clean the face of the CD drive monthly with a cloth dampened with deionized water CAUTION Do not allow moisture to enter the disk drive When power is applied the internal components may be damaged RFA300A Measurement Set 8VSB Appendix B User Service Cleaning the Keyboard and Mouse A In Case of Problems Diagnostics Software Problems Clean the exterior surfaces of the keyboard and mouse with a dry lint free cloth or a soft bristle brush A swab is useful for cleaning in narrow spaces around the controls and connectors Do not use abrasive compounds on any part of the instrument CAUTION Avoid getting moisture inside the keyboard and mouse during external cleaning use only enough solution to dampen the cloth or swab Clean with a 75 isopropyl alcohol solution and rinse with deionized water Do not use chemical cleaning agents they may damage the instrument Avoid chemicals that contain benzene toluene xylene acetone or similar solvents This section addresses problems that you may encounter while using the
88. ors decrease a transmitter s Signal to Noise ratio thereby reducing the coverage area The measurement set performs the measurement by calculating ideal signal magnitude and phase from the received I Q signal and comparing it with the actual signal The Amplitude and Phase Errors measurement window is shown in Figure 3 8 The measurement window contains the following areas m A listing of measurement results m A mask test pass or fail indicator for each measurement m Cursor direction controls m A listing of each cursor s position and the difference between the two m Graphics showing signal amplitude error versus ideal signal amplitude measured in dB versus constellation units refer to the Glossary and signal phase errors versus ideal signal amplitude measured in degrees versus constellation units The selected masks are overlaid on the graphics if enabled from the setup refer to Amplitude and Phase Errors Setup next RFA300A Measurement Set 8VSB Reference GA RFA300A Amplitude amp Phase Errors _ File Edit View Setup Run Stop Tools Window Help 2al Smoothing High Maximum Peak Peak Deviation Amplitude Error Results listing Phase Error Magnitude Error Mask Test Phase Error Mask Test Mask indication 6 0 7 5 10 0 125 15 Constellation Units CU D AmplEr Phase Const Cursors Cursor position lt dB Er Unit ool 027 450 S003 004 Ay
89. req Resp Min 0 02 dB 9 2 98 1 21 28 PM Freq Resp Pk Pk 0 37 dB 9 2 98 1 21 28 PM Freq Freq Resp Max 178 650 MHz 972 98 1 21 28 PM Freq Freq Resp Min 174 150 MHz 9 2 98 1 21 28 PM Freq Group Delay Max 177 700 MHz 9727 98 1 21 28 PM Freq Group Delay Min 179 380 MHz 9 2 98 1 21 28 PM Frequency Response Mask Test 9 2 98 1 21 28 PM Group Delay Mask Test 9 2 98 1 21 28 PM Group Delay Max 9 2 98 1 21 28 PM Group Delay Min 9 2 98 1 21 28 PM Group Delay Pk Pk 9 2 98 1 21 28 PM Amplitude amp Phase Errors Amplitude Error Mask Test il 9 2 98 1 18 55 PM Amplitude Error Pk Pk 9 2 98 1 18 55 PM Phase Error Mask Test 9 2 98 1 18 55 PM Phase Error Pk Pk 9 2 98 1 18 55 PM Out of Channel Emissions Out Chal Pwr to Avg Pwr Lower 4 9 2 98 1 19 02 PM Out Chal Pwr to Avg Pwr Upper 4 9 2 98 1 19 02 PM Out of Channel Mask Test il 9 2 98 1 19 02 PM Summary for this Session All results Saved results Running Curent 72 981 17 52PM Tektronix Figure 3 12 Signal Monitor measurement window RFA300A Measurement Set 8VSB Reference Signal Monitor Setup Measurement selections lt AutoSave controls lt NC In addition to selecting measurements to monitor you can also select the following in the Signal Monitor Setup How often to save your results automatically if at all m Size limit for the results database file m When and how to be notified of caution alarm and error conditions Choices of how to be notified
90. rovides an overview of the Out of Channel Emissions measure ment window For more in depth information refer to the online help Out of Channel Emissions is a vital measurement that is specified by the FCC To prevent interference outside of the allotted spectrum the RF signal must comply with the specified mask for the transmitter under test NOTE The measurement set is limited to measurements between 0 and 80 dB on the FCC scale The measurement set performs the measurement by calculating the power of the signal that passed through an 30 kHz filter before being digitized The measured values are adjusted to an equivalent 500 kHz noise bandwidth and divided by the total transmitter output power This is the FCC measurement method The Out of Channel Emissions measurement window is shown in Figure 3 1 The measurement window contains the following areas m A listing of measurement results m A mask test pass or fail indicator m Controls for selecting the number of channels to display m Controls for resolution m Cursor direction controls m A listing of each cursor s position and the difference between the two m Graphic showing the spectral waveform with the selected mask overlaid on the spectrum display if enabled from the setup refer to Out of Channel Emissions Setup next RFA300A Measurement Set 8VSB 3 1 Reference GA RFA 3004 Out of Channel Emissions File Edit View Setup Run Stop Took
91. rsor direction controls m A mask pass or fail indicator for each measurement m A listing of each cursor s position and the difference between the two m Graphics showing frequency response measured in dB versus frequency and group delay measured in time nanoseconds versus frequency Selected masks are overlaid on the display if you enabled any in the setup refer to Frequency Response and Group Delay Setup next RFA300A Measurement Set 8VSB Reference Results listing lt Mask indication Cursor position lt Cursor directions Frequency Response and Group Delay Setup GA RFA300A Frequency Response amp Group Delay BBE File Edit View Setup Rum Stop Tools Window Help BREI Smoothing Aan z Gp ste eea cs o ne Freg MHz Level Frequency Response Error Freq Resp Max 1 900 0 11 dB Freg Resp Min 2 650 0 26 dB Freq Resp Pk Pk 0 38 dB Group Delay Max 1 000 12 2 ns Group Delay Min 2 250 12 0ns Group Delay Pk Pk 24 1 ns Frequency Response Mask Test Pass Group Delay Mask Test Fail Ampl Eror Dhy Freq cB Error 012 6 06 is ae Pie a iP 5 Beihai p H i A MHZ 1 1 f 1 1 Piste peer peretg tet tgttts4qadd Running Cunent 9 10 98 4 45 04PM Tektronix Figure 3 6 Frequency Response and Group Delay measurement window Click the Setup button in the toolbar to enable and select a mask for each measurement in the measurement window
92. s Signals Description Channel 7 through Channel 69 174 MHz to 806 MHz 162 MHz to 818 MHz 50 Q gt 25 dB 174 MHz to 806 MHz 15 dB 174 MHz to 806 MHz 80 dB 174 MHz to 806 MHz 1 mW to 1 W 0 dBm to 30 dBm NOTE The input power indicator indicates over amplitude power input beginning at 0 2 W 23 dBm The variable attenuator of the input circuitry has enough range to handle up to 1 W at the input connector 10 mW to 2 W 10 dBm to 33 dBm For all measurements requiring demodulation the 8VSB signal is passed through a DSB based vestigial sideband IF filter with the characteristics given in the formula shown in Figure A 1 The formula also defines the idealized frequency response curve of the transmitter 50 dB Analog lt 50 dB Digital This specification is the allowable signal amplitude of TV signals other than the one the RFA300A is to measure It is defined as the ratio of the desired signal s average power divided by the sync tip power of analog TV or average power of DTV signals lt 50 dB RFA300A Measurement Set 8VSB Appendix A Specifications F DOI 0 eo lt FS Fn Sg F F ar F symbol F symbot 5 1 sin aa Era PSF S Pet Fy F symbo 1 Fou aet Sis Fn T Fr 1 9 H F F ymboi FF pio Ea 1 1 sin 27r F Symbol Where gmi 2922 5x 10 10 762 238 MHz a 26MH 1 91150007 F symbol Figure A 1 IF filter characteristics
93. s the instrument will receive only one channel If the input signal strength is more than 1 watt install the external 10 dB attenuator the input signal strength cannot be more than 2 watts RFA300A Measurement Set 8VSB Installation NOTE Power to the measurement set must be within the following ranges gt 1 mW and lt 1 W without the external 10 dB attenuator gt 10 mW and less lt 2 W with the external 10 dB attenuator installed Ethernet Parallel Power Alarm SVGA port RS 232 RF COM port 1 connections Figure 1 10 Rear view RFA300A Measurement Set 8VSB 1 15 Installation Interface Connections The interface connectors on the rear and side of the RF measurement set shown in Figure 1 10 and Figure 1
94. strument for servicing A protective bag for the instrument is included in the packaging kit but is not shown Figure B 1 Repackaging the instrument new packaging B 6 RFA300A Measurement Set 8VSB Appendix B User Service Repackaging Procedure When the instrument is shipped it is important to package it well to protect the New Design instrument Figure B 1 shows how to repackage the instrument for shipment using the new packaging materials It is not necessary to return the accessories received with the instrument when returning the instrument for repair NOTE The packaging materials illustrated in Figure B 1 will accommodate both the portable and the rackmount versions of the instrument cabinet 1 Ifthe instrument is to be shipped to a Tektronix field office for repair attach a tag to the instrument showing the following m Owner s name and address Instrument serial number m Description of the problem s encountered and or service required 2 Place the protective front cover on the front of the instrument 3 Place the instrument in the protective bag The bag prevents dust moisture or other debris from entering the cabinet 4 Fold the top of the bag neatly over the top of the instrument to make it as flat as possible and seal with packing tape 5 Place the front cushion 3 over the front of the instrument 6 Place the rear cushion 2 over the rear of the instrument 7 Carefully lift the instrument
95. ta block and adds 20 parity bytes The receiver compares the 187 byte block to the 20 parity bytes to determine if the data is valid RS encoding can correct up to 10 byte errors per one 187 byte data block packet RFA300A Measurement Set 8VSB Reference Data Interleaver Some noise burst durations are longer than the RS encoder can manage For further protection a time diversity scheme called data interleaving is used Refer to Figure 3 15 c3 c2 C1 63 b2 b1 a3 a2 a1 lt non interleaved c3 b3 a3 c2 b2 a2 c1 b1 al lt Interleaved Noise burst Figure 3 15 Data interleaving A noise burst could delete all the b bytes of a non interleaved signal resulting in a loss that the RS decoder in a receiver cannot recover However if the data is interleaved only one byte is lost in each of the a b and c byte segments of the interleaved signal This leaves enough data for the decoder to determine the correct value In reality 8VSB data is interleaved to a depth of 52 This allows the decoder to determine the correct value of data that has been damaged by a 193 us noise burst Trellis Encoder A Trellis Encoder is another Forward Error Correction method However where as the RS encoder dealt with the entire data packet as a block the Trellis encoder affects the stream of bits as they develop through time Trellis encoding is accomplished by Trellis Coded Modulation TCM TCM is a combination of coding and modul
96. tive humidity is 50 Up to 10 000 ft 3 040m derated 1 C or 1 8 F per 1 000 ft 305 m above 5 000 ft 1524 m altitude 40 000 ft 12 190 m RFA300A Measurement Set 8VSB Appendix A Specifications Table A 8 Dynamics Characteristic Description Random Vibration Operating 0 27 gems total from 5 to 500 Hz 10 minutes each axis 3 axes 30 minutes total Non Operating 2 28 gnus total from 5 to 500 Hz 10 minutes each axis 3 axes 30 minutes total Functional Shock Non Operating Half sine 20 g s 11ms duration 3 drops each side 18 shocks total no media in floppy disk p drive rive Table A 9 Transportation Characteristic Description Transportation Package Material Transportation Package material meets recycling criteria as described in Environmental Guidelines for Package Design Tektronix 063 1290 00 and Environmentally Responsible Packaging Handbook Tektronix 063 1302 00 RFA300A Measurement Set 8VSB A 15 Appendix A Specifications Certifications and Compliances Table A 10 Certifications and compliances Category EC Declaration of Conformity EMC FCC Compliance EC Declaration of Conformity Low Voltage U S Nationally Recognized Testing Laboratory Listing Canadian Certification Additional Compliance Standards or description Meets intent of Directive 89 336 EEC for Electromagnetic Compatibility Compliance was demonstrated using EN 61326 1997 Product
97. to enter the BIOS setup menu Select Load Optimized Defaults Select Y and then Enter to confirm selection Gis Re ONS OS Select F10 and then Enter to Save and Exit setup To manually configure the BIOS settings refer to the RFA300A Measurement Set 8VSB Service Manual for settings and instructions Restore the Contents of the Partitions In some situations such as when the power has been interrupted or files were mistakenly deleted the RFA300A may fail to boot from the hard drive If this happens use the RFA300A System and Application Restore Media CD ROM to restore the hard drive to factory default installation status The RFA300A Measurement Set 8VSB contains one IDE hard drive with two partitions The first partition used for the RFA300A system is approximately 2000 MB and is formatted with the FAT format The second partition uses all of the remaining space on the hard drive and is formatted with NTFS Easy Restore To restore the contents of partition 1 only NT system and RFA300A applica Partition 1 tion use the following steps This restore process is effective only if the hard drive is still good The process should take less than 15 minutes CAUTION The following procedure should preserve the data on Partition 2 A N D drive However under some extreme conditions such as problems with the partition table or Partition 2 the data may be lost Therefore you should back up important data on disks or over the n
98. trans mitted signal S N is the power ratio between the ideal received signal and the difference between the ideal and actual received signal as measured along the real axis during symbol times only A comparison is made between the deviation RFA300A Measurement Set 8VSB 3 3 Reference EVM Complex MER Pilot Amplitude Error Phase Noise 3 4 of the actual digitally modulated television signal and an ideal signal of the same data This measurement is the major all in one indicator of the transmitter s signal quality The test is an early indication of system problems before they become bit errors and is more sensitive to modulation errors than Bit Error Ratio BER tests The EVM Error Vector Magnitude measurement also provides a broad analysis of the transmitted signal EVM analysis can reveal incorrect filter shaping see VSB Modulation on page 3 18 and other modulation quality problems Complex MER is a complex form of S N The measurement is made by including Q quadrature channel information into the calculation Refer to Complex MER calculation in the online help This measurement shows any error of the pilot signal amplitude This section provides a brief overview of the Phase Noise measurement window For more in depth information refer to the online help This measurement window measures the random low frequency phase deviations of the entire 8VSB signal Phase noise is typically added by the transmitter s
99. try into the program Access each measurement from the Home window by clicking on the appropriate icon as shown in Figure 1 2 on page 1 3 1 2 RFA300A Measurement Set 8VSB Getting Started oR HFA3O0A Home Figure 1 2 Home window Refer to the next chapters Operating Basics and Reference for an overview on operating the measurement set For detail information refer to the online help RFA300A Measurement Set 8VSB 1 3 Getting Started Accessories 1 4 Table 1 1 and Table 1 2 list the standard and optional accessories Table 1 1 Standard accessories Description RFA300A Measurement Set 8VSB User Manual RFA300A Measurement Set 8VSB Application Software on CD ROM Windows NT Software and manual on CD ROM WINNT keyboard US Tektronix three button mouse Standard IEC power cord 125 V Front protective cover 10 dB Attenuator Rackmount slides hardware kit Table 1 2 Optional accessories Description Accessory pouch Power cord options Opt A1 Universal Euro 230 V 50 Hz Opt A4 North America 240 V 60 Hz Portable cabinet kit w instructions Option D1 Calibration certificate RFA300A Measurement Set 8VSB Service Manual with Performance Procedure and Adjustment Procedure software disk Part number 071 0697 XX 063 3623 XX 119 5514 XX 119 6216 XX 119 4330 XX 161 0104 00 200 4408 XX 119 6328 00 016 1441 XX 161 0104 06 161 0104 08 016 1929 XX 071 0698 XX 063 3411 XX
100. um Power Factor Correction Yes RFA300A Measurement Set 8VSB A 13 Appendix A Specifications Environmental Characteristics Table A 7 Environmental characteristics Characteristic Cooling airflow Required Clearance Use Rating Atmospherics Temperature Operating meeting accuracy specifications Operating without damage Non operating Humidity Operating Non operating Altitude Operating Non Operating Description Intake is from the front and sides of the instrument Exhaust is to the bottom and rear of the instrument 2 in 50 mm air space adjacent to the bottom of the instrument is required Rated for indoor use only 5 C to 45 C 32 F to 113 F 30 C hr max gradient non condensing derated 1 C or 1 8 F per 1 000 ft or 305 m above 5 000 ft or 1524 m altitude 5 C to 50 C 32 F to 122 F 30 C 54 F hr max gradient non condensing derated 1 C per 1 000 ft or 305 m above 5 000 ft or 1524 m altitude With a floppy diskette media in the floppy drive the operating specification lower limit is 10 C 50 F 20 C to 60 C 4 F to 140 F 30 C 54 F hr max gradient non condensing 20 to 80 relative humidity non condensing Max wet bulb temperature 31 C or 87 8 F at 50 C or 122 F maximum relative humidity is 50 8 to 80 relative humidity non condensing Max wet bulb temperature 40 C or 104 F at 50 C or 122 F maximum rela
101. umeric pass fail and graphic forms Results Database A file where results from a measurement are held for later recall exporting or reporting Data in these files can also be used for further study or analysis by external applications The files are in Microsoft Access format Signal to Noise The power ratio between the ideal received signal and the difference between the ideal and actual received signal along the real axis Session A collection of any results saved by the Signal Monitor during the time between the Run and Stop events A session can include a few results or the results from many iterations through a set of measurements Setup A collection of instrument control settings that includes measurement monitoring and viewing parameters Setups do not include any option settings or system frequency selection RFA300A Measurement Set 8VSB Glossary 3 Glossary Glossary 4 RFA300A Measurement Set 8VSB Index Numbers 8VSB overview 3 14 A Accessories 1 4 Address Tektronix x Alarm Limit definition Glossary 1 Amplitude Error Glossary 1 Amplitude Error setup 3 9 Amplitude Error window 3 8 Automatic logon C 5 AutoScale definition Glossary 1 BIOS settings restore C 3 Bit Error Ratio definition Glossary 1 Boot installation countdown C 6 C Caution Limit definition Glossary 1 Channel frequency 1 18 Channel selection 1 18 Channel Spectrum window 3 10
102. up exe from the Start menu 3 Install the RFA300A Measurement Set 8VSB software as follows a From the Start menu run e RFA300 Setup exe b Click Next c Select Typical setup type d Click Next e Click OK to acknowledge the comctl32 dll update f Click Finish for the pass 1 setup g Remove the CD ROM from the drive to let the system boot from the hard drive C 12 RFA300A Measurement Set 8VSB Appendix C System Recovery h As soon as the NT boot starts from the hard drive reinsert the CD ROM into the drive i The system completes the NT boot from the hard drive and then uses the CD ROM for pass 2 of the setup j When you are prompted to finish remove the CD ROM from the drive and click to restart the system The RFA300A Measurement Set 8VSB will be available for use after the restart This completes the Software Installation Procedure RFA300A Measurement Set 8VSB C 13 Appendix C System Recovery C 14 RFA300A Measurement Set 8VSB ee eee eee Appendix D Mask File Formatting The mask testing feature allows you to set visual parameters within the graphic portion of the measurement window The masks are lines against which you can compare waveforms To create your own mask files you must understand how they are formatted This section provides that information For information on creating a specific mask refer to the online help for example Creating Out of Channels Emission masks Mask fil
103. y LED indicates when keypad is in shift mode Locked mode key feature RFA300A Measurement Set 8VSB Operating Basics Table 2 2 Control key combination functions Control key Function Ctrl A Invokes the AutoScale function Ctrl B Opens the previous window same as the toolbar lt lt Back Ctrl C COPY Ctrl F Opens the following window same as the toolbar Fwd gt gt Ctrl H Opens the Home window Ctrl K Opens the Keypad dialog box Ctrl O Opens the Recall Results dialog box Ctrl P Prints the measurement Ctrl S Saves the results of the current measurement Ctrl T Toggles the Touchscreen on or off Ctrl V PASTE Ctrl X CUT Ctrl REPEAT Ctrl Z UNDO Touch Screen The touch screen allows you to use your finger instead of a mouse Move your finger around the screen to move the cursor Tap to select an object and select ENTER to activate the object Soft Keyboard You can use the soft keyboard with any application To display the soft key board select My T Soft from the Program menu click the keyboard icon in the System Setup menu or click a keyboard icon displayed in an application You can configure the keyboard change the size for example To do this click the icon shaped like a hand in the upper right corner of the keyboard display to access a dialog box Tutorial For a tutorial on how to use the soft keyboard select My T Soft Welcome from the My T Soft program group in Programs in the Windows startup menu
104. y are rated Pollution Degree 1 No pollution or only dry nonconductive pollution occurs Products in this category are generally encapsulated hermetically sealed or located in clean rooms Pollution Degree 2 Normally only dry nonconductive pollution occurs Occasionally a temporary conductivity caused by condensation must be expected This location is a typical office home environment Temporary condensation occurs only when the product is out of service Pollution Degree 3 Conductive pollution or dry nonconductive pollution that becomes conductive due to condensation These are sheltered locations where neither temperature nor humidity is controlled The area is protected from direct sunshine rain or direct wind This product contains a CD ROM drive which utilizes a Class 1 laser and complies with EN60825 1 94 and with the U S FDA regulations The drive is marked with the laser s classification and date of manufacture as well as the following information Complies with the DHHS rules 21 CFR Chapter 1 Subchapter J applicable at the date of manufacture 5 to 50 C 3000 meters Test and measuring Class 1 as defined in IEC 1010 1 Annex H grounded product Overvoltage Category II as defined in IEC 1010 1 Annex J Pollution Degree 2 as defined in IEC 1010 1 Note Rated for indoor use only 100 240 VAC 50 60 Hz single phase 6 0 Amps max Mains fuse is 10A 250V Fast Not operator replaceable Refer servicing t

Download Pdf Manuals

Related Search

Related Contents

Analisi ambientale - Comune di Reggio Emilia  CE Certificate  HEV Ⅳ Real Time RT-PCR Kit User Manual For In Vitro  Benutzerhandbuch GCS900 für Bagger (PDF 6,1MB)  

Copyright © All rights reserved. Failed to retrieve file