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PC-CDU User's Manual

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1. Rover tab The Positioning Mode radio button group permits the user to select one of the four avail able positioning modes DGPS Parameters To switch a roving receiver to Multi base mode select the Multi base checkbox In this mode the rover is able to use differential corrections received from more than one reference station This checkbox is associated with the receiver parameter par pos cd mult mode Correction usage If the user selects the Nearest checkbox the rover will use differential corrections transmit ted by the nearest reference station The checkbox corresponds to the receiver parameter Ipar pos cd mult nearest EI When working in the Nearest mode make sure that the checkboxes Mix and Best are unchecked The Mix checkbox allows the user to run the rover station in average mode The checkbox is associated with the receiver parameter par pos cd mult mix When the rover runs in this mode the Best checkbox must be unselected 2 Currently this mode allows the rover to use up to five reference stations simultaneously 47 With the radio buttons Corrections and Positions the user specifies which of the averaging modes will be used for position computation If both the Mix checkbox and Corrections radio button are selected the rover will be averaging differential corrections re ceived from different reference stations If the user selects the Mix checkbox and Positions radio button the receive
2. Confidential In formation with a degree of care no less stringent that the degree of care you would use in safeguarding your own most valuable trade secrets Nothing in this paragraph shall restrict you from disclosing Confi dential Information to your employees as may be necessary or appropriate to operate or care for the re ceiver Such employees must also keep the Confidential Information confidential In the event you be come legally compelled to disclose any of the Confidential Information you shall give JNS immediate no tice so that it may seek a protective order or other appropriate remedy WEBSITE OTHER STATEMENTS No statement contained at the JNS website or any other website or in any other advertisements or JNS literature or made by an employee or independent contractor of JNS modifies these Terms and Conditions including the Software license warranty and limitation of liability SAFETY Improper use of a Javad receiver can lead to injury to persons or property and or malfunction of the product The receiver should only be repaired by authorized JNS warranty service centers Users should review and heed the safety warnings in the manual accompanying the receiver MISCELLANEOUS The above Terms and Conditions may be amended modified superseded or can celed at any time by JNS The above Terms and Conditions will be governed by and construed in ac cordance with the laws of the State of California without reference to co
3. To create open a new log file take these steps Enter the desired filename in the File name edit box or select a file from the file list dis played in this window In the latter case just double click on the corresponding filename Specify the desired data recording interval a k a data update interval in the Recording interval edit box Set the desired Elevation mask Click the Site parameters button The Site Configuration dialog box will appear Figure 17 Specify the desired Site Name and then select the correct Antenna Status from the corresponding list box Set the Antenna Height parameter and select deselect the Slant checkbox depending on whether you have specified the slant or vertical antenna height Set the correct Antenna Type Press OK Site Configuration Site Parameters Site Mame Site Antenna Status Fixed Antenna Parameters Antenna Height r fo Slant Antenna Type UNKNOWN Send to receiver Cancel LSS Figure 17 Site Configuration dialog box 22 After the OK button is pressed the Site parameters dialog box will be closed and the parameters that have been specified in the box will be copied to PCCDU ini If you then press the Start button in the File Manager dialog window these settings will be enabled and put in the newly created current log file On the other hand if you need to update the site information for the current log file
4. Advanced Base Settings Refresh Apply Exit Save Set all parameters to defaults Figure 32 Base tab Base Station Coordinates Antenna Phase Center Note that the reference geodesic coordinates you specify in this tab will relate to the antenna L1 phase center There are three ways to enter the geodesic coordinates of the base antenna s L1 phase center 1 Type in the precise latitude longitude and ell height manually use the Lat Lon and Alt edit boxes 2 Use the instant absolute coordinates from the receiver by pressing the Get from receiver button 3 Use the absolute coordinates averaged over the specified time interval with the Averaged and Avg Span controls The corresponding receiver parameters are par reffavg mode and par reflavg span respectively As the names of the radio buttons GPS GLO at one time and GPS GLO separately imply these allow the user to specify for GPS and GLONASS either common reference coordi nates or individual reference coordinates In most cases it is recommended to use the same reference coordinates both for GPS and GLONASS After the user has selected GPS GLO separately he she will see the GLONASS tab appear on the screen too The GPS GLO at one time radio button is associated with the receiver parameter par ref pos geo GPS GLO separately corresponds to the receiver parameters par ref pos gps geo for GPS and par ref pos glo geo for GLONASS Pressing the Datum Par
5. Press Next if you want to adjust the requested value of Output Period 20 that it becomes consistent with the receivers current settings Next gt gt Figure 59 Wizard s 1st window 79 Output Pernod Setup Wizard Figure 60 Wizard s 2nd window Output Pernod Setup Wizard Figure 61 Wizard s 3rd window 80 Output Pernod Setup Wizard Figure 62 Wizard s 4th window Output Pernod Setup Wizard Figure 63 Wizard s 5th window 81 Appendix C Channel Navigation Status Codes Code 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 50 Meaning C A data used for position computation P1 data used for position computation P2 data used for position computation Ionosphere free combination used for position computation Measurements are not available Ephemeris is not available Unhealthy SV as follows from operational ephemeris SV health Time Frequency parameters from the ephemeris data set may be wrong Initial conditions position and velocity vectors from the ephemeris data set may be wrong Almanac SV health indicator is not available for this satellite Unhealthy SV as follows from the almanac SV health indicator 2 Alert flag from the word HOW is set URA indicates the absence of accuracy prediction for this SV This SV is excluded from position compu
6. before installing and using this software In Chapter 2 the reader will find detailed instructions about how to install PC CDU on a PC 1 5 1 6 Chapter 3 describes the main components of PC CDU s graphical user interface and explains how to launch the program Chapter 4 which is intended as a users reference manual focuses on the particular functions this program features The appendixes provide supplementary information about PC CDU Appendix A PC CDU Scripts introduces readers to the scripts and describes how to use them Appendix B Output Period Setup Wizard presents the windows which are used to adjust the periods of generating raw data and position Appendix C Channel Navigation status codes shows the list of all available satellite navigation status codes System requirements Check that you have the following required or recommended items before installing and using PC CDU e PC compatible with Intel Pentium 100 MHz or faster e 5 Mbyte free disk space e 16 Mbyte RAM or more 32 Mbyte recommended e 32 bit operating system such as MS Windows 95 98 Me NT 2000 e Color monitor at 640x480 screen resolution e Internet Server Client applications require that your computer has an internet con nection If run on a Windows NT 2000 computer PC CDU does not allow connection to the receiver via the computer s parallel ports Full and limited functionality versions of PC CDU PC CDU exists in two
7. it will be sufficient to press the Send to receiver button to send the new site settings site name antenna status antenna height etc di rectly to both the receiver log file and PCCDU ini 5 Press Start A new log file will be created and the receiver will start recording data into the file E If you set a recording interval that is not supported by the receiver PC CDU will launch a utility called Output Period Setup Wizard For more in formation on the Wizard see Appendix B Output Period Setup Wizard To stop data recording and close the file press the Stop button To keep track of the data recording process see how the log file size varies in time The field Total memory shows the total amount of space in bytes in the receiver available for data The field Free memory displays how much space in the receiver is free for storing data The buttons Delete Refresh and Exit serve the same purposes as in the Download files tab see 4 2 1 1 i According to the GRIL terminology this file is referred to as current log file 23 4 2 1 3 Download path tab In this tab you select the destination folder for the files downloaded Figure 18 2 File Manager Download files Current log file Download path E c New folder Eeste Figure 18 Download path tab Note that the window s right hand panel is for your reference only You will be prevented from doing any operations on the fil
8. 2002 Efedito Http uaa awad Com ODYSSEY E Receiver ID AEROSPEZIOO Firmware version 2 2 Apr 05 2002 n RTK support Wes Mainboard version E GGO Z RAM size Odo Power Board hw 3 fw 24 Internal modern none Fower supply x DU Antenna input ext Ext Ant DC status off Power source auto Fowercursource 6 Charger status auto Charger cur status off Battery Aly 2 61 Battery Bry ad Qn board Cy de Charger wi 40 Digital part 3 3 fv 3 3 Refresh Save to file Ok i Figure 58 About PC CDU window EI PC CDU retrieves the receiver ID and firmware version only if the connection to the receiver is established through the Connection parameters window Should you replace one receiver with another improperly i e with out using the disconnect and connect commands the About PC CDU window will not reflect the parameters status of the newly connected receiver correctly Bear in mind that Receiver ID is not the same as the receiver serial number printed on the receiver s body The Save to file button permits you to write the current receiver parameters and options into an ASCII file 72 This file helps us find out the source of the problem and then remedy it Be fore contacting JNS Customer Support about any problems with PC CDU re ceiver etc please do the following 1 2 5 4 Run PC CDU Establish the connection between PC CDU and the receiver Click Help and t
9. ATE Fised Positioning Masks Elevation mask e Standalone Ie DRS ETRE Fleet ETRE Fieed Positioning System W GPS Satellites tracked Satellites used in pos le GPS we GLONASS le GPS GLONASS GPS GLoNass waas pmjlock use om lock use pm lock use om lock use 1 I 3 e 17 4 25 e degree POOP mask wf AIM Enabled Non precision 7 Alarm arm itn ail Senee a wed l lono Correction Datum Parameters I Tropo Correction om 25 Ie oF lw 28 e 29 le 30 l 18 4 19 4 20 e 21 le 22 e 10 le 11 4 12 l 13 w 14 e 15 le 23 e 31 Ju IE MR Aw 32 le Fe All to lock a Mone to a All to use None to ai Refresh Apply 2 3 4 5 Jz E l GLONASS Measurements Use f CALI C PA Pfl2 FASB O lono Free suas sise sis aaa Aaa Advanced Positioning seins Exit Save Set all parameters to defaults Figure 27 Positioning tab Positioning Mode These four radio buttons are included in the Positioning tab only for user conven ience They simply mirror the same named buttons from the Rover tab For more information about this radio button group see 4 2 4 5 The receiver parameter as sociated with these radio buttons is par pos mode cur Enable Solutions These four checkboxes are included in the Positioning tab only for user conven ience They simply mirror the same named checkboxes from th
10. Fast dc levels The corresponding receiver parameter is par pwr charge speed e The flag Current Mode shows which of the batteries a b or none off is being charged at the moment The corresponding receiver parameter is Ipar pwr charge curbat Voltages e The indicator External shows the external power supply s voltage The corre sponding receiver parameter is par pwr ext e The indicator On Board shows what is the actual voltage drawn by the receiver board The corresponding receiver parameter is par pwr board e The indicators Battery A and Battery B show the voltage on batteries A and B respectively The corresponding receiver parameters are par pwr bat a and Ipar pwr bat b e The indicator Charger shows the charger s output voltage during battery charg ing The corresponding receiver parameter is par pwr charger Power output modes e The checkbox Ports A B allows you to turn power on and off for ports A and B The corresponding receiver parameter is par pwr out ab e With the checkbox Port C you can turn power on and off on port C The corre sponding receiver parameter is par pwr out c The two above described parameters are applicable to the Odyssey receiver only e The list box Ports governs power output on serial ports On the power board will feed all available serial ports via the correspond ing pins when the receiver is turned on If the receiver is turned off there will not be any power on the por
11. Lor ar SB 34 5353 E ETT 1021 214 m NTT 1711 527 m DTT 1993 297 m CTT 30 49 07 57 POOP 1 6694 ATE fixed LO 100 001 3167 0000 Recelver time 12 50 07 Receiver date 09 10 2001 Clock offset 0 5122 ppm Osc offset 0 5122 ppm Tracking time 04 30 27 Figure 11 Target tab e Lat Lon latitude longitude of the target or of the receiver s antenna e ETT NTT Easting to target and Northing to target in the local system with the origin at the receiver e DTT Distance to target in meters e CTT Course to target The rest of the parameters have been described above see the Geo and XYZ tabs To set the target coordinates equal to the current receiver coordinates dou ble click on either Lat or Lon field To reset the timer in the bottom right corner of the Main Window to 00 00 00 double click somewhere in the Aour min second area The Main window s menu The user can access any one of PC CDU s dialog windows by selecting the corresponding item from the main window s menu Figure 12 Some of the menu items have shortcut keys For example the user can select the Site item from the Configuration menu with the keys CTRL I Fil Configuration Tools Plots Help Figure 12 The Main window s menu The following sections will describe all available menu items and the corresponding dialog win dows in detail 18 4 2 1 File Manager window To
12. Parallel Modem Should you have an internal modem installed use the controls in this subtab Figure 36 JAPS Receiver Configuration General MINTER Positioning Base Rover Ports Events Advanced ntremal puts El METE Ippe T Antenna At Bpi Til adem ly taut k fi ade Poner a Piah rc Low Period see Figure 36 Modem subtab Internal Modem Input Output and Period are similar in their purposes to the analogous settings in the Serial and Parallel subtabs The Type list box allows the user to set operation modes Receiving or Transmitting The Mode list box intends to specify the method used to transmit data e Off internal modem is turned off e FHSS internal modem uses frequency hopping spread spectrum technique e DSS internal modem uses direct sequence spread spectrum technique These list boxes are associated with the receiver parameter par dev modem altype With the Antenna radio buttons the user sets the antenna type the modem uses Int stands for an internal antenna Ext stands for an external antenna The radio buttons corre spond to the receiver parameter par dev modem a ant You can set power transmitting mode for the internal modem using the Power radio buttons The radio buttons are associated with the receiver parameter par dev modem a pwr 52 4 2 4 7 Events This tab Figure 37 is used to review and configure the 1PPS signal and Event m
13. Slot Number fen lock use fenllock use fen lock use fen lock use IER EME BME IEM l iw SME AR fe ally Iv 3M WwW FG li Y fe iw 4 iv fe Ole fw w fw ae le iw 3 i hw Ww li Ww 2aly Iv BM Y 12M kg ah Y adi i All to lock None to lock All to use None to use Figure 30 GLONASS tab Satellite Numbering e For user convenience GLONASS satellites can be displayed ordered either by their Frequency Channel Number or by the Slot Number The tab displays three columns fcn sat lock and use which are described in Table 8 Table 8 Description of data displayed in the GLONASS tab Notation Meaning GLONASS satellites frequency channel numbers if the Frequency Channel Number checkbox is selected fcn sat GLONASS satellites slot numbers if the Slot Number checkbox is checked lock Enable GLONASS satellites for tracking use Use this GLONASS satellite for position computation Use the buttons All to lock and All to use to select all GLONASS satellites at one time Use the buttons None to lock and None to use to deselect all GLONASS satellites at one time The third tab as its name implies deals with the WAAS EGNOS satellites Figure 31 42 WAAS e Channel 1 Set WAAS 120 as GPS 12 Interpret message HO as message H fo Use lono Corrections Never Ifexist CG Only Channel 2 Set WAAS 122 Ss ERS 32 2 Interpret message HO as message fo Use
14. client New information will be added to the file after another client connects to the PC CDU server If the user wants to view the satellite information and the antenna s current position in the main windows he she must select the Display data on server checkbox Otherwise no information will be displayed in the window If the checkbox DNS lookup is selected the file pecdu_server log will contain the IP and DNS addresses Figure 5 shows an example of the Connection Parameters dialog window in Internet Server mode Connection Parameters Connection mode E Direct i Internet Client Internet Server Port s settings Port com Baud rate 115200 Infrared port le ATSACTS handshaking Program settings Passive mode Manual mode only Restore original Receiver s baud rate on Disconnect Internet settings Hostname localhost TCP port 8000 Password E le Display data on server Y Log server events e DNS lookup cnc Figure 5 Connection Parameters window in Internet Server mode In this example a four character password and the default TCP port number are used After the Connect button is pressed the dialog windows Chat and Main will be displayed The Chat window allows an operator running PC CDU Client to communicate with his her counterpart who runs the corresponding remote receiver with PC CDU Server In addition this dialog window displays information on the server s curren
15. implementations the full functionality version called PC CDU MS and the reduced functionality version called PC CDU Lite Differences between PC CDU MS and PC CDU Lite are listed in Table 3 Table 3 Differences between PC CDU MS and PC CDU Lite Function PC CDU MS PC CDU Lite Connect to a receiver via the Internet Yes No Record data on a PC s disk drive in real time bad Yes No Real Time Data Logging Graphical presentation of the receiver s current position Yes No the satellite sky plot 1 7 Each version of PC CDU MS has a limited lifetime as a full functionality tool After the current version of PC CDU MS expires its extended functions see Table 2 are automatically disabled so that PC CDU MS turns into PC CDU Lite Technical Support Occasionally PC CDU users encounter problems during installation or use of the program Should you have any problems with PC CDU please contact JNS Customer Support Please be ready to provide JNS Customer Support with the following information e Did you try to fix the problem s on your own based on the troubleshooting tips available in the manual e System hardware specifications of the computer on which you are running install ing your PC CDU e ASCII file with a complete list of the receiver options receiver parameters enabled in your receiver For how to obtain a text file listing all receiver options and parameters please refer to 4 2 16 To get in con
16. lono Corrections Never Fexist Only Enable output of true WAAS PAN numbers Figure 31 WAAS tab A WAAS enabled JNS receiver allows simultaneous tracking of two WAAS satellites Either of the WAAS satellites is allocated its own channel Below we will show how to set up Channel 1 Channel 2 is handled in the same manner The checkbox Channel 1 if selected allows you to specify necessary settings for the desired WAAS satellite e You use the spin boxes Set WAAS and as GPS to associate the selected WAAS PRN 120 138 with an appropriate GPS PRN 1 32 It is recommended to select for this purpose one of the GPS PRNs that are not used in the current GPS constel lation At writing this manual the unused GPS PRNs are 12 16 19 and 32 The spin boxes correspond to the receiver parameter par waas 1 sat e The spin box Interpret message 0 as message disables message 0 The corresponding receiver parameter is par waas 1 instead0 e The radio button group Use Iono Corrections allows you to set the desired ionosphere correction mode The radio buttons are associated with the receiver pa rameter par waas 1 ion Never ignore any ono corrections received from the WAAS satellite s If exist use in position computation not only the satellites for which the WAAS Iono Corrections are available but also all the other acquired satellites Only use in position computation only the satellit
17. open the File Manager dialog window select the File Manager item from the File menu or press the keys CTRL F The File Manager dialog window has three tabs e Download files e Current log files e Download path 4 2 1 1 Download files This dialog window Figure 13 allows you to delete log files from the receiver memory or download them onto your computer 2 File Hanager Download files Current log file Download path Total memory 15502920 bytes Free memory 15674400 bytes 02 08 001 e 2232 19476 01 08 2001 12 31 10 kin bb24f 09 07 2001 11 35 36 190709 13237 03 08 2001 9 05 35 090709 19569 09 07 2001 13 18 58 Save tor c Blocks 16 erdire mode Using Current port COM Block size 2040 bites Stop Pelete Ee Erit 49 Downloading kin Figure 13 Download files tab Before downloading the desired log file s onto your computer select the folder on PC where you want the file s to be stored To do this use the Download path tab Once the destination has been specified go to the Download files tab highlight the file s that you want to download onto the computer and press Download You will see the following color download status indicators in the course of downloading the data see Figure 13 e The green circle indicates the file s that have been successfully downloaded e The red circle marks the file that is being downloaded e The blue cir
18. parameter is par out elm curl log File name prefix specifies what prefix will be added to the names of the receiver files cre ated via Minter i e by pressing FN The prefix can be up to 20 characters long Default is log The corresponding receiver parameter is par cmd create prefix If you want the new receiver data to be appended to an existing log file enter the desired file name in the Always append to the file edit box The setting can be up to twenty characters long The corresponding receiver parameter is par button file 36 Files Creation mode Two operation modes are possible for FN button If the Log file radio button has been selected pressing FN will result in closing the current log file or if data log ging has been off opening a new log file If AFRM has been selected pressing FN will enable this mode if it has been disabled and vice versa The associated re ceiver parameter is par button rot Automatic File Rotation Mode AFRM parameters Period specifies the time duration of each of the multiple log files created in AFRM mode The corresponding receiver parameter is par log rot sc period Phase specifies the phase i e constant time shift of the multiple log files cre ated in AFRM mode The corresponding receiver parameter is par log rot sc phase Use the edit box Files total to specify how many multiple log files must be created in AFRM until this mode automatically turns off The correspond
19. peg no L Ves Ves AO Cinderella VES WES no Position Update rate Hz 20 20 O Raw data update rate Hz 20 ll Code differential Base peg peg no Code differential Rover Ves Ves AO RATE Base pez pez AO RTE Rover Hz 20 20 O Memor Mb rE rE O Co Op Tracking peg peg no 1 PPS Timing Signal 2 2 O Event Markers 2 2 In Band Int Rejection O Multipath Reduction WES Ves no Frequency Input pez peg no Freg Lock and Output peg peg no Serial Port amp Kbps 460 460 Serial Port B Kbps 460 460 O Serial Port C Kbps 460 460 O Serial Port O Kbps 460 460 O Infrared Port pez WES nO Parallel Port emmm pez AO Sp 5p Freg Hop peg peg no Sp Sp Direct pez pez AO HIM pez peg no Datums support pez Wes no Magnetic azimuth VES Ves no Geoid height peg peg no Way Pont Navigation e pez AO WAS pez pez no UMMISTAR o no peg no ATC Output 3 3 O AT CM Input 5 5 D CMA Output 1 1 O CHA Input A O JPS Output O O JFS Input 5 Refresh Load Stap Exit Figure 52 Option Manager window This window serves two main purposes First it indicates which of the receiver options are available for your receiver Second this window allows you to update the receiver options by loading a new receiver option file with the extension jpo After pressing the Load button PC CDU will prompt you to enter the name of the corresponding jpo file When the loading of the new receiver option file is over in the status bar y
20. prompt as shown below Whatever time unit is selected ia That is at the beginning of the day when multiple file logging is started by pressing the Start button 27 Real Time Logging Ea E All files with such names as Site0000 ps Ssite0007 pz etc gt residing in the folder E will be overwritten without warning Continue Yes Ho Figure 22 Overwrite existing files warning In this example the destination folder is E c s db ses the filename prefix is Site Press Yes Figure 22 to accept the prompt s default answer If you press No you will return to the real time logging window There you will need to first uncheck the Overwrite existing files checkbox and then press the Start button to start data logging In this case the numeric parts of the names of the JPS files recorded will be in cremented starting from the first unused value not necessarily from 0000 If the Autoconvert to RINEX checkbox is selected PC CDU will automatically convert all newly created JPS files to RINEX Note that this conversion is performed on the move If you want to use the Autoconvert to RINEX function make sure that the executable file jps2rinex exe is available on your computer The Setup converter button which is located immediately below the Autoconvert to RINEX checkbox allows you to set up the JPS to RINEX converter jps2rinex exe Pressing this button will open the dialog window Converter to RINEX S
21. satellite is at apogee it is marked with AZ Azimuth in degrees CA Signal to noise ratio C NO in the C A channel dB Hz P1 Signal to noise ratio C N0 in the P1 channel dB Hz P2 Signal to noise ratio C NO in the P2 channel dB Hz TC Time elapsed since the last loss of lock in the C A channel for the corresponding satellite This time is given in minutes or if the symbol is specified in the column in seconds SS Satellite navigation status For a complete description of the satellite navigation status structure see Appendix C If a satellite is not used in position computation its SS flag will be set to Otherwise will be displayed 15 Note that will be displayed everywhere in the panels where the corresponding parameters are unavailable The user can sort data in a column in descending ascending order by clicking on the column s title 4 1 1 Geo tab The Geo tab shows the receiver s antenna s current position and the time frequency parame ters describing the behavior of the receiver s local oscillator Figure 9 Geo Target Lat 55 42 50 3005 H Lon 377 35 35 6320 E Alt 2350116 m Vel 0 0068 ms AMS Pos 0 0768 m RAMS Vel 0 0238 m z POOP 1 4313 ATE fixed LU 100 001 4070 0000 Receiver time 08 55 37 Receiver date 09 10 2001 Clock offset 0 5315 ppm Osc offset 0 5315 ppm Tracking time 00 35 57 Figure 9 Geo tab e Geodetic coordi
22. size in the field 24 ve The Start button allows the user to start recording data into the file After starting the data recording the name on the button will change to Stop Pressing the Stop button will close the file If you set a recording interval that is not supported by the receiver PC CDU launches a utility called Output Period Setup Wizard For more in formation on the Wizard see Appendix B Output Period Setup Wizard Press Exit to quit the Real Time Logging dialog window The value of Recording interval specified in the Real Time Logging window applies only to this mode The Elevation mask edit box is asso ciated with the receiver parameter par out elm cur term 4 2 2 1 Single file tab Output path 0 4 GPS Satellites 8 GLONASS Satellites 4 Receiver Position my epas USSF fog 08 3 42 47 46 29 4 Y 2196996 0138 17 05 59 278 53 54 44 122 F n246 66 38894 la 1 b 262 35 30 35 5 Vel 0 0505 ms 24 O03 5 60 54 53 Jr aa POOP 1 4079 Receiver date 27 03 2002 Receiver time 07 32 26 Elapsed time 00 00 00 Received Recording interval seconds Exit Elevation mask 5 degrees A Figure 19 Real Time Logging dialog window In this mode Figure 19 PC CDU will record receiver data into one specific file on your com puter In the Save to edit box enter the name of the file where you want the receiver data to be logged By default the name of a JPS file c
23. station and rover If you set the checkbox Use old ref Coordinates to ON and then launch RTK the rover receiver immediately starts using the existing reference coordinates in place of expecting when the reference station transmits some updated reference coordinates to the rover side The checkbox relates to the receiver parameter par pos pd ref keep Care should be taken when setting this parameter to ON Imagine for a mo ment that the rover has changed the location and started a new RTK session with a different reference station Should this parameter be set to ON the rover receiver will be misusing the o d reference coordinates for some time which will most likely result in position blunders until the rover receives a first message with the correct reference coordinates The list box Source serves to specify the source port from which the receiver will use differ ential data for position computation in RTK mode This list box is associated with the receiver parameter par pos pd port CMR Settings With the GLONASS message spin box the user assigns the message type for GLONASS measurements Make sure that both the reference station and rover receiver use the same 49 4 2 4 6 JAPS Receiver Configuration x message type for GLONASS measurement data The spin button is associated with the receiver parameter par cmr rover glo type Press the Reset RTK Engine button to reset the RTK engine It means that all of the pre vi
24. to explicitly specify which of the GPS GLONASS and WAAS satellites are enabled for tracking and position computation The first tab as its name implies deals with the GPS satellites Figure 29 priest we pmilock use pra lock use prmilock use Www oly fw Ti fw Ok v SS iw w iw fw be Iw JW M IR fw dhe Y 27 4 e bw ir lr Liv fw 2lv v S Ww ll Y Zi fv 23 lv El Y Tf fw 224 4 30 le Iw IE pay aw Y Shy Iv 6w MF 24 wW Y 32 W M All to lock a None to ad All to use None to use Figure 29 GPS tab The tab displays three columns prn lock and use which are described in Table 7 41 Table 7 Description of data displayed in the GPS tab Notation Meaning prn GPS satellites pseudo random numbers lock Checkmarks in this column indicate that the corresponding satellites are enabled for tracking In Figure 29 GPS satellite PRN 8 is disabled for tracking Checkmarks in this column indicate that the corresponding satellites are enabled for position computa use tion In Figure 29 GPS satellite PRN 4 is disabled for position computation A GPS satellite s system number is identical to its PRN number Use the buttons All to lock and All to use to select all GPS satellites at one time Use the buttons None to Lock and None to use to deselect all GPS satellites at one time The second tab as its name implies deals with the GLONASS satellites Figure 30 Satellite Numberin f Frequency Channel Number
25. to monitor the offset reduction in the Clock offset field of the GEO tab After you select Freq Locked you will notice that the value in Clock offset will have started to reduce and pretty soon usually in a few minutes it will become equal to zero while in contrast Osc Offset will not change much e The Freq and Time Locked radio button means that the receiver will adjust both the internal oscillator s frequency until the measured frequency offset is re duced to zero and the internal clock until it gets fully synchronized with the speci fied reference time scale Switching from Freq Locked or Freq and Time Locked to Off may result in a temporary loss of lock to satellites Freq Locked guarantees that the receiver s 20 MHz output will have high long term stability not necessary high short term stability However there is a way to assure that both of these characteristics will be good enough It can be done by selecting Enable Co op tracking on the Loops Management subtab The radio buttons are associated with the receiver parameter par osc mode Raw Data Management This subtab which is shown in Figure 42 contains the controls for specifying the frequency at which the receiver will update raw measurement and position Also you may set up the con trols that affect the signal processing 59 nt lnterference Multipath Reduction Loop Management External Frequency Faw Data Management Raw Measurement Update Ra
26. via the Internet The parameters Port Baud rate Infrared port RTS CTS handshaking Passive mode and Manual mode serve the same purposes as in Direct mode see 3 1 1 The other group of parameters Internet Settings are intended for the user to correctly tune PC CDU for Internet connection TCP port Password Log server events Display data on server and DNS lookup Special attention should be given to setting TCP port for PC CDU servers Make sure that the selected TCP port does not coincide with any one of the reserved port numbers The default TCP port number is 8000 The edit box Password is used to protect the PC CDU server from unauthorized access The user can enter in this edit box up to 128 alphanumeric characters It is assumed that the receiver is connected to your computer directly This version allows a JNS receiver configured as PC CDU server to be accessed by only one remote receiver PC CDU client at a time 2 According to TCP specifications TCP port number can be up to 64K Although the user can formally enter a port number N which is greater or equal to 64K the software will implicitly force it to N mod 64K 11 3 1 3 If the user has selected the checkbox Log server events there will be created a text log file pccdu server log in PC CDU s working directory This file will contain all the infor mation that has been collected during the communication session between the PC CDU server and PC CDU
27. win dow are similar to the values in Main window see 4 1 G26 EL AZ CA PI P2 55 nb 6 ST 42 42 sb LA data used for position computation Figure 55 Pop up menu reflecting the information about the selected satellite To clear the Satellites window click the Clear data button 4 2 14 Position window To go to the Position window select the Position item from the Plots menu The graphs in the Position window see Figure 56 show the difference in meters be tween latitude longitude of the current receiver position and latitude longitude entered in the Target position window over the interval in seconds specified by the user in the Plots Configuration window The features of the graphs can be adjusted through the Position group box of the Plots Configuration window see 4 2 15 69 Position _ al Latitude 360 150 Oz EA er Longtitude Figure 56 Position window 4 2 15 Plots Configuration window To go to the Plots Configuration window select the Configuration item from the Plots menu With this window Figure 57 the user configures the settings in the Scatter Satellites and Position windows Plots Configuration Points colors Standalone Code differential 3 RTK float E ATE fixed Scatte Plot width 100 0000 fm M Standalone e Code differential Tick interval 110 0000 rn i RTE float W Show gid W Connect points fv ATK fired Position T
28. 00 clear Clears the manual mode window removing from it both the issued commands and receiver replies 2 specified by the user and stored by PC CDU 75 default variable name 1 9 fol lowed by its default value Defines the default values for those of the script arguments that were not explicitly specified in the command line For example default 1 a sets the variable 1 to a unless this argument is already defined in the command line disconnect Stops script execution disconnects PC CDU from the receiver and closes the manual mode window This is the same as pressing the Disconnect button echo on Turns echo on and off or displays its arguments off If echo is turned on PC CDU will be displaying all non any character sequence empty lines entered in the script specifically PC CDU com mands receiver commands and the corresponding reply messages If echo is turned off PC CDU will be displaying only replay messages preceding them with the gt character PC CDU will not show echo off and echo on com mands Default is on exit Stops script execution disconnects PC CDU from the receiver and exists PC CDU goto lt label name gt Jumps to the line following immediately after lt label name gt If PC CDU can t find such a label in the script this command is just ignored and PC CDU continues with the script send lt bytes to send gt Sends the argument to the receiver as is without making any subs
29. 101371 31700 16 40 06 last tri 56118 31 00 16 46 56 meas 1 n4370 1 00 16 33 58 thur mom 444739 HEA 10 18 30 vere 1 Cra 31 200 18 33 22 Save to C Atmpl Fetiries 17 Esclusive mode Usina COMI Curent port Pea Block size 12048 bytes Stop Pelete EEE ET ngg Last warning Waiting for the 1st black PF Figure 15 Message notifying that a problem occurred while retrieving the current block of data from the receiver If such a problem occurs you may need to try a higher baud rate or and a smaller block size Usually the larger the block size the more efficient the data transfer On the other hand if the connection between the computer and receiver is not reli able enough reducing the block size can often help to exclude or at least minimize communication errors Receiver data can also be transferred to the computer via the parallel port which normally al lows a fifteen to twenty fold reduction of the data transfer time as compared to the serial ports There are however three 3 limitations due to which you will not be able to use the parallel ports for data transfer even if such ports are available both in the receiver and the computer 20 4 2 1 2 The first limitation is the requirement that your computer runs under Windows 95 98 or ME The second limitation is that your computer s parallel port must be configured as ECP or ECP EPP The third limitation is that the option Parallel Por
30. 48 Configuration tab PDL configuration settings In the RF Channel list box the user can choose the desired channel Once the change has been made press the Apply button to program the radio Be very careful to let the program complete its programming cycle and then press Disconnect Any interruption in power can cause the radio to lose its memory map If this happens contact JNS support or Pacific Crest sup port The settings shown in Figure 49 are the only settings that work reliably with the RFM radio However if you made any changes press the Apply button to confirm the changes 63 4 2 8 2 AFM36 Configuration Configuration Senal No 9843r rrr AF Channe E 463 5500 463 5500 Radio Link Setting Link rate 3600 Retries FEC Off Scrambling Un Ei de OTE OCE Serial Interac Baud rate 398400 ki Faritv None ag EQT 10 T DTE DCE protocol mode iss TR BREAK to Command i Addresse Local fo Destination 255 Z Disconnect Refresh elo Set defaults Digisguelch Low be COMA monitor On Figure 49 Configuration tab Recommended settings Pressing the Set defaults button returns all radio link and serial interface settings back to their factory default values Digisquelch should be set to Low on the base and High on the rover If the radio at the rover is receiving external interference then you should set i
31. CU NAVIGATION SYSTEMS PC CDU User s Manual Reflects PC CDU Version 2 1 10 MS Build April 1 2002 Last Updated June 17 2002 All rights reserved Copyright O Javad Navigation Systems Inc 2002 INTRODUCTION TERMS AND CONDITION Thank you for purchasing your Javad receiver The materials available in this Manual the Manual have been prepared by Javad Navigation Systems Inc JNS for owners of Javad products It is de signed to assist owners with the use of PC CDU software which may be used with the Javad receiver and its use is subject to these terms and conditions the Terms and Conditions PLEASE READ THESE TERMS AND CONDITIONS CAREFULLY PROFESSIONAL USE Javad receivers are designed to be used by a professional The user is re quired to be a professional surveyor or have a good knowledge of surveying in order to understand the user and safety instructions before operating inspecting or adjusting Always wear the required protec tors safety shoes helmet etc when operating the receiver COPYRIGHT All information contained in this Manual is the intellectual property of and copyrighted material of JNS All rights are reserved You may not use access copy store display create deriva tive works of sell modify publish distribute or allow any third party access to any graphics content information or data in this Manual without JNS express written consent and may only use such i
32. I Currently the message reports the time within day in the GPS time scale only e Receiver date shows the receiver s current date as specified in the correspond ing RD message e Clock offset describes the time derivative of T T where Tr designates the receiver time T designates the receiver reference time For more information about T and T see the GRIL Reference Manual This parameter is obtained from the DO message and is expressed in ppm e Osc offset is derived from the message OO and it is expressed in ppm The parameter describes the difference between the VCO s nominal and quiescent fre quencies e Tracking time is the time elapsed since the last complete loss of lock event in the receiver s C A channels as specified in the corresponding TT message 4 1 2 XYZ tab The XYZ tab which is shown in Figure 10 is similar to the Geo tab except for the fact that the position of the receiver s antenna is displayed in Cartesian coordinates here a 2053565 0212 To 219 006 0452 amp 4246 8 0904 wel 0 0366 mis AMS Pos 4 7720 m AMS Wel 0 0477 mis POOP 1 6117 standalone Recelver time 10 20 00 Receiver date 26 02 2002 Clock offset 0 2123 ppm Osc offset 2 B ppm Tracking time 00 05 59 Figure 10 XYZ tab 17 4 1 3 Target tab 4 2 The Target tab Figure 11 is used to display various navigational information specifically Geo ee Target Lar 55 49 45 7220 N
33. NASS Satellites 4 EL az cal Pi ref Tc ssf Lat 55 42 50 4052 N o 2i 294 42 27 27 42 00 a iS amo Tor 22 36 42 42 37 225 00 06 36 124 48 33 34 251 00 IA os 08 72 B4 47 53 45 42 00 101 40 a4 24 24 22 00 iii am 17 05 13 210 ag 48 38 18 O04 15 68 236 52 44 44 140 00 lBmeve imma 24 03 65 2101 54 54 48 128 00 17 gur 162 53 44 43 178 00 POOP 1 2047 18 33 172 48 al 31 65 00 standalone 21 Br 1941 35 12 111 4 00 22 46 2641 49 39 38 149 00 23 56 108 50 39 39 128 00 3g ia 96 42 23 33 28 om Recenver time 14 21 34 Recener date 0 02 2002 Clock offset 0 2589 ppm ef A 356 40 la 18 A 16 Osc offset 2 6178 ppm Tracking time 04 51 14 Figure 8 Main window Table 4 Tracking parameters displayed in the GPS Satellites and GLONASS Satellites panels Parameter Description GPS SV PRN If the character is shown next to PRN in the column this means that almanac data are unavailable for the corresponding satellite Sn GLONASS SV Orbital Slot Number If the character is shown next to Sn in the column this means that almanac data are unavailable for the corresponding satellite Fn GLONASS SV Frequency Number EL Elevation angle in degrees The signs and immediately following the elevation angles indicate that the corresponding satellites are ascending and descending respectively If a
34. NY OTHER PERSON OR EN TITY IN EXCESS OF THE PURCHASE PRICE FOR THE RECEIVER LICENSE AGREEMENT Use of the PC CDU Software and any other computer programs or software sup plied by JNS or downloaded from a JNS website the Software in connection with a Javad receiver constitutes acceptance of these Terms and Conditions in this Manual and an agreement to abide by these Terms and Conditions The user is granted a personal non exclusive non transferable license to use such Software under the terms stated herein and in any case only with a single receiver or single computer You may make one 1 backup copy of the Software Otherwise the Software may not be copied or reproduced You may not assign or transfer the Software or this license without the express written consent of JNS This license is effective until terminated You may terminate the license at any time by destroying the Software and Manual JNS may terminate the license if you fail to comply with any of the Terms or Conditions You agree to destroy the Software and manual upon termination of your use of the receiver All ownership copyright and other intellectual property rights in and to the Software belong to JNS If these license terms are not acceptable return any unused Software and manual CONFIDENTIALITY This Manual its contents and the Software collectively the Confidential Infor mation are the confidential and proprietary information of JNS You agree to treat JNS
35. PC CDU will use the site name specified in the Site Configuration dialog window as the filename prefix The Numbering edit box allows you to select the desired fle numbering scheme e If the option Date amp Time is selected the numeric part of the filename will look as follows YDDDHHMM where Y last digit of the year 0 9 DDD day of the year 1 366 HH hours in the receiver time scale 00 23 MM minutes in the receiver time scale 00 59 The date and time used for the filename will correspond to the first epoch recorded into the file e If the option Ascending Count is selected the numeric part of the filename will vary between 0000 and 2147483647 If the option Ascending Count has been chosen the parameter Start Count will be enabled In this edit box you can enter the starting state of the JPS file count i e the numeric part of the name of the JPS file created first This count will be incremented as new JPS files are opened 26 New file every is associated with a pair of components an edit box and a drop down list box Use the list box to select the desired time unit day hour or minute Use the edit box to specify the interval in the selected time unit in which the current JPS file will be closed and the next one will be opened Note that this interval must be an integer Also note that some of the multiple files created may be shorter in terms of their duration in time than it is spec
36. a type settings Receiver model Receiver board Default Any JPS_3 Eurocard External Any JPS 4 JPS 4 2 External OEM JGG20 Not available OEM LEGACY H HE_GG HE_GD Not available HIPER HE_GG HE_GD Auto OEM Legacy E egacyE E GGD HE_GG HE GD Not available ODYSSEY E 32 Allowed values Internal External Internal External Auto Not available Not available Internal External Auto Not available Voltages walts External Turn on off Slots W Slot 2 le Slot 3 le Slot 4 Note that such receiver models as Prego Regency with JPS 4 board and Od yssey with JPS 4 board are capable of automatically detecting an external an tenna only at receiver start up time Therefore if you want to switch from the internal antenna to an external one while in auto you will have to turn the receiver off and then back on EI The Regency and Odyssey receivers using JPS_4 2 are capable of automati cally detecting an external antenna without switching the receiver off and back on Antenna Status e The indicator Current Input shows what antenna type is actually being used by the receiver int the internal antenna is being used ext an external antenna is being used This flag relates to the receiver parameter par ant curinp e The indicator Ext DC Status shows if the external antenna draws any dc off the external antenna draws no dc normal the external antenna draws normal dc overload the external
37. ain Name System GUI Graphical User Interface IP Internet protocol LO Local Oscillator MINTER Minimum INTERface A dedicated user interface designed for JNS receivers NS Navigation Satellite P Precise code PC Personal Computer PLL Carrier Phase Lock Loop PLLC Carrier Phase Lock Loop Control PS Pseudorandom Sequence Receiver Satellite Navigation User Receiver developed and manufactured by JNS RMS Root mean square RNSS Radio Navigational Satellite System RTCM Radio Technical Commission for Maritime Services This format is used to transmit differential corrections and related data from the Base receiver to the Rover receiver in DGPS and RTK applications RTK Real time kinematic SW software VCO Voltage Control Oscillator vill 1 PC CDU software 1 1 PC CDU s purposes and functions PC CDU is a windows application for controlling radio navigation receivers developed and manu factured by the Javad Navigation Systems company The most current version of PC CDU MS as of 2 1 10 April 1 2002 provides the following functions Connects a PC to a JNS receiver via the computer s serial or parallel ports Direct Connection Mode Configures a JNS receiver as an Internet Server To do this the user must run PC CDU in Internet Server Mode Connects a PC to a JNS receiver that has been configured and is being run in Server Mode via the Inte
38. ameters button will open the lt Datum ID gt Datum Parameters window In this window you can not only view the ellipsoid and transforma tion parameters of the datums selectable from the Current Datum list box but also edit the 44 transformation parameters for USER and P90 In addition you can edit the ellipsoid parameters of USER in this window Structurally this window is similar to that shown in Figure 28 In the East North and Height edit boxes the user specifies the offsets from the marker to ARP These edit boxes corresponds to the receiver parameter par ref ant offs RTCM Settings The Station ID edit box is associated with the receiver parameter par rtcm base stid This pa rameter allows the user to assign a separate station ID to each reference station working in the area With the Max number of Satellites edit box the user specifies the maximum number of satellites allowed for use in RTCM messages types 18 through 21 0 means that all of the available satellites will be included in the above mentioned RTCM message types If an RTK sys tem has a slow modem the baud rate is less than 9600 bps it is recommended to restrict the number of satellites included in these messages The limitation allows the user to reduce the amount of data sent by the base station which helps to avoid the data link overload If the ac tual number of satellites in sight exceeds the value entered in this edit box the RTCM messages will include da
39. antenna draws higher dc then expected This indicator is associated with the receiver parameter par ant dc The indicator Board temperature shows the receiver board s current temperature This indicator is associated with the receiver parameter par dev thermo out Power management Power e Use the drop down list box Power Mode to select the desired power source for the receiver Auto receiver will automatically select the power source Mix receiver will automatically detect and start consuming power from the source with the highest voltage Battery A receiver will consume power from battery A Battery B receiver will consume power from battery B External an external power supply will be used This setting is associated with the receiver parameter par pwr mode 33 eS e The indicator Current Mode shows what power source is being used at the moment This setting is associated with the receiver parameter Ipar pwr curmode Charger e Use the drop down list box Charger Mode to select the battery charging mode Off receiver will not charge the batteries Charge A receiver will charge only battery A Charge B receiver will charge only battery B Auto receiver will automatically detect and charge the detected batteries This setting is associated with the receiver parameter par pwr charge bat e Use the Speed list box to set the desired speed of battery charge cycle You can select between Normal and
40. arameter is Ipar pos sp meas 40 For a single frequency receiver the radio buttons P L1 P L2 and Iono Free will be grayed out If the checkbox Iono Correction is selected the receiver will correct the pseudoranges for ionosphere based on the model defined in ICD GPS 200 Revision C before using them in position computation The corresponding receiver parameter is par pos sp iono Note that if both Iono Free and Iono Correction are selected the first overrides the second If the checkbox Tropo Correction is selected the pseudoranges will be corrected for tro posphere before being used in position computation The corresponding receiver parameter is Ipar pos sp tropo Note that the above mentioned receiver parameters par pos sp meas Ipar pos sp iono and par pos sp tropo apply only to absolute position computation Satellites management Satellites tracked e The checkboxes GPS and GLONASS are used to allow tracking of GPS and GLONASS satellites respectively The GPS checkbox is associated with the re ceiver parameter par lock gps sat The GLONASS checkbox relates to Ipar lock glo fcn Satellites Used in pos e Use the checkboxes GPS and GLONASS to specify what satellite systems only GPS only GLONASS or both will be used in position computation The GPS checkbox is associated with the receiver parameter par pos gps sat The GLONASS checkbox corresponds to par pos glo sat GPS GLONASS WAAS Use these tabs
41. arget coordinates that the user enters here Figure 44 will then be shown in the Lat and Lon fields of the Target tab Pressing the Get from receiver button will instruct PC CDU to set the target position equal to the receiver s current position 61 4 2 7 Lat 55 faz 51 28290 n Lonja fas 3450335 Je El let from receiver Cancel Figure 44 Target Position window RFM96 Configuration window To open the RFM96 Configuration window select the Radio item from the Configuration menu then click RFM96 as shown in Figure 45 Configuration Aecenver Ctrl Site Ctrl l Target position Ctrl T edo o REME A Figure 45 RFM96 item Figure 46 shows the tab that will appear after you click the RFM96 item a RFM96 Configuration Modem connected to port le Connect to modem at bitrate Auto Connection typ Search for modem Power cycle Figure 46 Connect tab This tab allows the user to establish communication with the radio modem Use the Modem connected to port list box to select the receiver port that the radio modem is connected to Normally this is port C for the Legacy Legacy GGD Legacy GD GG Regency HiPer Prego and port B for the Odyssey To set the baud rate that the modem communicates to the receiver at use the Connect to modem at bitrate list box It is normally 38400 bps If you want the receiver automatically detects the baud rate select Auto 62 N
42. arguments should be delimited by either spaces or commas If some of the arguments in the command line contain separators spaces and or com mas put such arguments into double quotes e g myscript This is one argument these are 4 arguments Alternatively instead of typing the script name you may use the Load script button which allows you to select the required script from the Script file window For easy access to scripts it is recommended to keep them all in one direc tory e g in PC CDU s working directory After PC CDU starts script execution it will read the file line by line carrying out the following operations if necessary e skipping empty and comment lines e replacing variables with their specific values 74 e echoing non empty lines to the screen if echo is enabled e interpreting PC CDU internal commands and e sending commands to the receiver and optionally waiting for receiver replies To abort the script execution click the Stop script button Variables xa Variables are special character sequences that are substituted for some specific values while running the script Currently PC CDU supports the following variables 1 OZ 9 n 90 The first nine of these variables initially contain the values of the script s command line argu ments With the command default you can assign the default values to these variables unless the corresponding arguments have already been spec
43. arker settings 2 JPS Receiver Configuration Y PPS A Enabled Y PPS B Enabled Edg Edge Peres 000 ms Rise C Fall po 000 ms Rise f Fall Offset o ms et Time Offset o ms et Time Offset o nz GPS t UTCus Offset o ns O GPS t UTCus Period of marked pulses CBL C UTCsu Period of marked pulses C GLO UTCsu o et plied bee o ms I Tied with Ref Time w Event Enabled Event B Enabled Clock Synchronizati cr Clock Synchranizatic ler ur PAC ronization a Be e Fall AER SET iz re C Fall Status Jot Grate Jot Ret Time Ret Tim E o C GPS UTCus E i sise C GPS Eos repeat Surieirornleali n epeal Suncoast z peat synchronization C GLO C UTCu epeal spnehromezatan COGO C UTC le Tied with Ref Time I ied with Reb Time Refresh Sopp E sit Save Set all parameters to default Figure 37 Events tab The checkboxes PPS A Enabled and PPS B Enabled correspond to the receiver pa rameters par dev pps a out and par dev pps b out respectively Selecting these controls you en able the receiver to generate 1PPS signals and also you will be able to modify the settings re lated to the selected 1PPS signal The Period edit box determines the rate of generating the 1PPS signals via the corresponding output connector pins The edit boxes are associated with the receiver parameters Ipar dev pps a per ms and par dev pps b per ms respectively The user can determine millisecond and nanosec
44. ble 60 If no reply is received over the timeout interval or if after receiving a few bytes PC CDU gets no more data for 100 milliseconds or if PC CDU keeps receiving continuous data for more than 100 milliseconds 60 will be undefined how ever script execution will continue In this you may need to adjust the timeout interval to be sure that the variable O contains correct information Receiver commands In scripts you can specify receiver commands arguments either explicitly or through variables When you use variables for this purpose these will be substituted by PC CDU for some specific values before sending the corresponding command to the receiver If you send a receiver command that starts with command label PC CDU will wait for the receiver to reply and if a reply is received it will save the reply to the variable 0 Currently the character is used in GRIL commands only to delimit the command checksum It should not cause any problems since PC CDU automatically adds a checksum for every com mand sent to the receiver PC CDU does not interpret receiver commands Therefore if you use receiver commands that change the baud rate and or handshaking for the current receiver port that is the port to which PC CDU is connected you should either use appropriate set commands immediately after them as shown below set par cur term rtscts off this governs the receiver port set rtscts off this governs th
45. checkbox to enable mode and make the other controls in the group available for modifying Co Op tracking mode is used to considerably improve the tracking characteristics of JNS receivers e When the receiver is in Co op tracking mode you can enable the Static Mode checkbox This mode allows the receiver to acquire satellites with lower signal to noise ratios and reduce the reacquisition time for the satellite signals after a tempo rary loss of lock The Static Mode checkbox is associated with the receiver pa rameter par raw clp static The receiver will take the above described parameter into consideration only if the receiver antenna is stationary and Enable Co Op tracking is se lected e The Bandwidth of individual PLL and Bandwidth of common PLL edit boxes mean exactly what their names imply Bandwidth of individual PLL is associated with the receiver pa rameter par raw clp indband Bandwidth of common PLL is associated with the receiver parame ter par raw clp comband Select the Enable L2 common loop checkbox to avoid the loss of L2 phase tracking in dynamic applications due to antenna rotation around its axis The checkbox corresponds to the receiver parameter par raw clp2 loop External Frequency The settings on this subtab Figure 41 allow you to configure the use of reference frequency it may be either high stability external frequency or the receiver s internal crystal oscillator 57 Antidnterferenc
46. cle indicates the file s standing in queue for downloading You can interrupt the download by pressing the Stop button Files in the destination folder will have the same names and extensions as the original receiver log files Before downloading the current log file in the destination folder PC CDU will check if there already exists a file with the same name in this folder If such a file is found there you will be prompted to select either Append or Overwrite In the first case the log file 19 downloaded will be appended to the existing file In the second case the existing file will be overwritten Figure 14 PC CDU The file log0709a ps already exists Do pon want to overnite the fle or append to it Append Cancel Figure 14 Message notifying that a file with the same name already exists Care should be taken when selecting Append This option is normally used only if the downloading process has for some reason been interrupted and you want it to be resumed The warning Last warning Waiting for the 1st block appearing in the status bar while downloading a log file Figure 15 indicates that PC CDU cannot for some reason retrieve the next block of data from the receiver The field Retries shows how many attempts to retrieve this block of data have been made so far 2 File Manager x Total memor 15802920 bytes Free memorm 14623056 bytes file test bear 1 00 16 25 09 last but_one
47. controls P L1 and P L2 will not be available The spin box GLONASS message allows the user to specify which message types will be associated with GLONASS measurements You can choose any unused message types between 3 and 7 The spin box is associated with the receiver parameter par cmr base glo type Click the Configuration of Receiver Ports button to go to the Ports tab For a de scription of this tab refer to section 4 2 4 6 of this manual j Feature code is an alphanumeric code used to describe a survey point 46 4 2 4 5 Rover In the tab you can configure your receiver as a rover station see Figure 33 z x z z d Receiver Configuration x SF um General MINTER Positioning Base Hover Ports Events Advanced Enable Solution C RTK Float W Standalone l BIK Float C DGPS Code Differential ATE Fised k DEES Ie RTK Fixed Moli ase CO Ce Sore chore E Eomectione urag mar age leech 30 e Eetreanolation Static a Sul das dE Medium I hiearest lono orrections arr fe Welay te Kinematic High mas ade een ot tea Elia me Measurements Use eer ae ie ono onectors Bese Eonrecians oe E oo Pron W CaL Fe F2L1 Fe F2L2 period sec 1 00 Source Any y Use cold ref coordinates Sure Any CMA Settings GLONESS message E i Reset AIK Ename Configuration of Receiver Ports Refresh Apply Advanced Rorer Setas Exit Save Set all parameters to defaults Figure 33
48. d rate on Disconnect In Passive mode PC CDU is not allowed to change any receiver parameters Note that in this mode PC CDU will display in the main window only those satellites whose elevation angles are larger than the elevation mask specified by the parameter Terminal Elevation Mask see 4 2 4 1 Once Passive mode is off PC CDU will automatically force Terminal Elevation Mask to 90 Therefore the user will be able to view in PC CDU s main window see 4 1 all of the satellites that are being tracked It is important to remember that this set ting 90 will be effective as long as the main window remains open Note however that the original value of Terminal Elevation Mask will not be lost in this case once the main window is closed PC CDU will automatically restore the original mask If Manual mode only is on PC CDU will perform as an input output terminal which allows the user to send commands to and receive information from the receiver If the user has selected the checkbox Restore the receiver s original baud rate on Disconnect PC CDU will determine and save the receiver s original baud rate and then restore this setting automatically on disconnecting the receiver by pressing the Disconnect menu item 3 1 2 Internet Server Mode When running PC CDU in Internet Server mode the user can configure a JNS receiver to perform as a PC CDU server Remote receivers PC CDU clients can then access this PC CDU server
49. e Multipath Reduction Loop Management External Frequency Frequency Source Source f Internal External External Frequency Source Parameters Ext frequency value MHz h o Ext frequency source status Jott Ext treg signal amplitude Oscillator Offset Reduction i Off Freg Locked Freg and Time Locked Figure 41 External Frequency subtab With the controls in the Source group the user specifies the reference frequency input that the receiver will use e Internal means the receiver uses the internal oscillator e External means the receiver uses an external frequency These radio buttons are associated with the receiver parameter par frq input Switching from Internal to External and vice versa may result in a temporary loss of lock to satellites The External Frequency Source Parameters controls allow the user to adjust the parameters related to external frequency mode e With the Ext frequency value edit box you specify nominal external fre quency value Here you can enter the values between 2 and 40 MHz The default value is 10 MHz The box is associated with the receiver parameter par frq ext e The field Ext frequency source status shows whether the external fre quency is being used or not off indicates that the receiver is using the internal crystal oscillator wait indicates that the receiver is waiting for the external frequency lock More precisely
50. e corresponding icon WAY 3 Press the Start button in the bottom left corner of your computer s screen and select Run from the pull up menu In the Open box specifies the full path to Pccdu exe Press Ok After you first run PC CDU you will see the file pccdu ini appear in the direc tory from which the executable has been launched In this INI file PC CDU will store all its settings If you want to have more than one copy of PC CDU each one with its own unique settings you will probably need to keep these copies in different direc tories Running different copies of PC CDU from different directories will allow you to maintain unique setting for each of the copies Once PC CDU is launched the Connection Parameters window will appear Figure 4 In this window the user first selects the desired connection mode e Direct e Internet Client e Internet Server Connection Parameters x Internet Client O Internet Server Port s settings Port com Baud rate 15200 F Infrared port FP ATSACTS handshaking Program setting W Passive mode Manual mode only le Restore original Receivers baud rate on Disconnect Internet setting Host name localhost MEE port e000 Paes oro P Diipapdata on sewer Me Log server events P OHS tokun carce Figure 4 Connection Parameters dialog 3 1 1 Direct Mode This mode is used when it is required to connect a computer and a JNS receiver directly i e us i
51. e JNS website More precisely some of the transferred bytes may be lost on the computer end 29 Manual Mode al ES ssprint mag nmea on REDO235 5110 6378137 0000 298 2572235631 se REO48 USER O 0 0000 0 0000 0 0000 0 00000 0 00000 0 00000 0 001 REOZ3 maq nmea GGA 1 00 0 00 0 0x03 REO019 REO019 REO019 REO019 REO019 REO019 REO019 REO019 REO019 REO019 REO019 GLL 1 GHS 1 GRS 1 Gosi 1 Go rst Gave 1 ADT 1 EMC 1 ROT 1 WTG 1 Di 1 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 0x0 00 0 0x0 00 0 0x0 00 0 0x0 00 0 0x0 00 0 0x0 00 0 0x0 00 0 0x0 00 0 0x0 00 0 0x0 00 0 0x0 REOLBSS P ATT 1 00 0 00 0 0x0 4 k Stop all messages Clear window Exit Disconnect Start lagging Load script Path C i General folder GRIL PC COUSPe cdusScripts Edit script E Figure 24 Manual Mode window We recommend that you do not send any commands to the receiver from the Manual Mode window before you familiarize yourself with the GRIL Ref erence manual and acquire good knowledge of the receiver parameters At the top of the Manual mode window there is the command line box in which you can type a new command line Alternatively you can press Y to open the combo box s list and select one of the previously used command lines Note that there may be stor
52. e L2 to exclude from the resulting RINEX files all L1 L2 raw data measurements The checkbox Delete source JPS files after successful conversion means ex actly what its name implies In the Additional options edit box you can enter any of the switches available for the windows console application jps2rin exe For more information about the switches refer to the Free Software section at http www javadgps com jns support jps2rin html In real time data logging mode it is recommended that the checkbox RTS CTS handshaking be selected and the baud rate be set to 115200 or higher Unlike downloading the recorded log files from the receiver memory onto the computer rea time data logging does not use any error detection correction protocol in the course of the data transfer As a result some of the mes Sages in the created JPS files may be corrupt due to the serial port overrun or similar problems 4 2 3 Manual Mode window 12 To go to the Manual Mode window select the Manual Mode item from the File menu or press the keys CTRL M This window Figure 24 allows direct control of the receiver by using GRIL commands In man ual mode PC CDU serves as a terminal communicating with the receiver e it allows you to send various receiver commands and get responses to these commands For a complete list of commands supported by JNS receivers refer to the GRIL Reference manual This document is available for download from th
53. e Rover tab If the Standalone checkbox has been checked and the rover receiver is being run in differential mode the receiver will report its current standalone position instead of the DGPS or RTK position if the latter is unavailable in the current epoch The corresponding receiver parameter is par pos mode sp Note that the checkboxes Code Differential Phase Float and Phase Fixed are always grayed out in this version of PC CDU Positioning Masks In the Elevation mask edit box you specify the elevation mask angle for the Satellites used in position computation The corresponding receiver parameter is par pos elm In the PDOP mask edit box you specify the threshold value of PDOP that dis ables position computation If PDOP exceeds this mask during a period of time the receiver s position will not be computed over the corresponding epochs The associ ated receiver parameter is par pos pdop 39 RAIM Enabled e If the RAIM Enabled checkbox is checked the receiver will automatically de tect and reject measurement outliers The corresponding receiver parameter is Ipar pos raim mode e The drop down list box Alarm is associated with the receiver parameter Ipar pos raim al mode e The Alarm limit edit box relates to the receiver parameter Ipar pos raim al manual From the drop down list box Current Datum you select the datum used in position compu tation This setting is associated with the receiver parameter par pos datum c
54. e computer port set par cur term rate 9600 this governs the receiver port set rate 9600 this governs the computer port or specify such receiver commands at the end of the script immediately before disconnect or exit Otherwise PC CDU may be locked up waiting for the receiver to reply Below you will find some examples illustrating various applications of scripts The following script serves the purpose described in the article Using the Coast Guard Beacon for Differential Corrections default 1 c set dev ser 1 imode rtcm set dev ser 1 rate 9600 set par pos mode cur cd em msg nmea GGA 1 exit After you save these lines to a file let s say beacon jpc you then can type in the command line beacon and press Enter to instruct the receiver to input RTCM corrections from serial 77 port C and output NMEA messages to the current terminal I you want to use serial port B for inputting corrections type beacon b and press Enter The following example illustrates how the goto command and labels are used in scripts intended for work with different receiver models par rcv model print par rcv model goto Is 0 echo Unknown receiver model stop lsOdyssey echo Receiver is Odyssey goto end lsLegacy echo Receiver is Legacy goto end lsEurocard echo Receiver is Eurocard end stop Running scripts from Windows Explorer Files with the extension jpc are automatically as
55. ed up to twenty 20 command lines in the list Once the desired command line is typed or selected press the Send command button in the bottom left corner of the Manual Mode window or just click the Enter key The receiver s responses will be displayed in the rece ver replies window located under the command line box Use the Stop all messages button to stop outputting any messages to the current termi nal With the Clear window button you can clear the rece ver replies window Press Exit to close the Manual Mode window The Disconnect button allows you to disconnect your computer from the receiver Note however the difference between the Disconnect button you press in the Manual Mode window and the same named item you select from the File menu If you press Disconnect in the Manual Mode window PC CDU will neither automatically disable RTS CTS handshak ing nor restore the receiver port s original baud rate regardless of whether the Restore the receiver s original baud rate on Disconnect option has been selected After the button is pressed PC CDU will send an appropriate dm command to the receiver 30 4 2 4 In other words if you want to restore the receiver port s original baud rate it can be achieved either by selecting the Connect item from the File menu or through the Manual Mode window In the second case make sure that the command you use to change the re ceiver port s baud rate is executed immediately before cl
56. eeuroasueseeutonsaesesutensaes 31 TZA SHE A A A 32 FAs MINTER a dad 36 Elis POSO sd cies 39 A o DOS 44 os ROV o ld bio 47 Elo POS ai 50 El TL EVENTS iaa dida 53 TZO A A ies apinnanert 55 422 59 Ste COMPGUravion WINGOW arias 61 42 0 Target POSICION WING OW tetris 61 4 27 REM96 Configuration WINGOW ssisciaesievcticvasdestutansteesacacnieiouien ois eats akinesia 62 EZz0 IMtlalze le Staind a 64 ld Clear NYRA Ma 65 4 2 10 RESET AA a A BE CA EA BE ASC ined a aa NSS So vend GAA BG SHON uve i GH erence nese 65 4 2 11 Option Manager WINCOW scscsscsesseceseececeenteecarsecntcecarseentsecarsaseeseeutonsaesecetsataeseeneetes 66 4 2 12 Scaner WINdOW di ON 67 4 2 13 SAS MILSS WING Won 68 4 2 14 POSION WINGOW aia aras 69 4 2 15 Plots COMPUTATION WINCOW anadir o co 70 4 2 16 ADOULPE CDU ica 72 APPENDIX A PG GCDU SCRIPTS sida sack tense teeue neues buns dd ai NA a tus NS O Sa IRA SEA Na la Ga sH CIA NGACH BHAN ne AN Si GIS GAR 74 IntrOGHEtIOn to PE CDU SCD sa ia 74 Va sia sis aa did 75 PES EDUSCO MIMO cet ra 75 Receiver COMMANAS ccccsccececcceceuueesauens Running scripts from Windows Explorer APPENDIX B OUTPUT PERIOD SETUP WIZARD APPENDIX C CHANNEL NAVIGATION STATUS CODES List of Figures Figure Dialog box Eile DOW NIO dG omnia ais 6 Figure 2 Select a destination for the archive PCCCU_MS ZIP ccececseceeeeceeeeeeeeeeeeeeeeeeeeetaeeeeeesetaeseeansesaees 7 Figure 3 Copying da
57. endix B Output Period Setup Wizard The Code smoothing interval edit box which is associated with the receiver parameter Ipar raw smi specifies the interval over which pseudoranges are smoothed by using correspond ing carrier phase measurements Here you can enter values between 0 and 900 seconds Zero designates that carrier phase measurements will not be used for smoothing pseudo ranges In the Doppler smoothing method edit box the user sets the method used for smoothing Doppler There are three available methods e 0 Receiver outputs raw unsmoothed Doppler Instantaneous yet rather noisy Doppler measurements e 1 Doppler is computed using two consecutive carrier phase measurements Car Phase i and CarPhasefi 1 where stands for the current epoch Such Doppler measurements are less noisy than in the first case 60 4 2 5 4 2 6 e 2 Doppler is computed using only three consecutive carrier phase measurements CarPhase i CarPhase i 1 and CarPhase i 2 where stands for the current epoch Doppler measurements obtained in this mode are least noisy The edit box is associated with the receiver parameter par raw dopp smi With Nominal Iono smoothing interval edit box the user specifies the nominal iono spheric correction smoothing interval over which raw ionospheric corrections are smoothed as suming the receiver has been working for some time and has already obtained enough raw ionospheric corrections to perfor
58. erference radio button group Figure 38 the user enables mode allow ing the JNS receivers to suppress the impact of narrow band interferences The user can assess the presence of interference based on the following information e When the number of tracked satellites is fewer by 2 or greater than the number of satellites in view e When the signal to noise ratio C NO in the C A channel for the satellites having elevations above 30 degrees does not exceed 40 dBHz e When the information about interferences indicates that Jamming Suppressor de tected interference signals within the specified band and also the strength of ag gregate in band interference is characterized as high or hard This information you can obtain with the command em jps uJI This radio button group is associated with the receiver parameter par ajm mode 55 Multipath Reduction The checkboxes Code multipath reduction and Carrier multipath reduction Figure 39 are used for mitigating multipath Anti lntererence Multipath Reduction Code multipath reduction Carrier multipath reduction Figure 39 Multipath Reduction tab When the reference station and rover station run in DGPS mode and they are not free from the impact of multipath we recommend that you select the Code multipath reduction checkbox for both the reference and rover stations This checkbox is associated with the re ceiver parameter par raw corr ca code If you use a pair of rece
59. es for which the WASS Iono Corrections are available Note that this is the default option for the radio button group To make WAAS Channel 2 settings you use the same receiver parameters but replacing 1 with 2 e g par waas 2 sat for par waas 1 sat If the checkbox Enable output of true WAAS PRN numbers is selected the WAAS satellites will have their true WAAS PRNs not GPS associated in the corresponding Satellite Indices messages The receiver parameter relating to this checkbox is par waas numb WAAS satellites with PRNs 122 and 134 EGNOS satellites with PRNs 120 and 131 43 4 2 4 4 Base With the Base tab you can configure the receiver for use as a reference station Figure 32 Receiver Configuration Base Station Coordinates Antenna Phase Center AICH Settings Measurements Sen f GPS GLO at one time Averaged Station ID o Fc F PA PA sa span se 180 LA C GPS GLO separately i A of Satellites JO ee MR GPS M GLONASS GPS GLO Get from receiver Health Good PF Pseudo range smoothing Reference Geodetic Coordinates sit oo u goc o0000 n E wes x D o Measurements Sen Lon 000 foo foo oo000 JE Station ID o CAI C PAI PAZ Alt 0 0000 m Datum Parameters Motion Unknown GLONASS message EF Antenna Offsets Landmark to AAF meters short ID COLO pp J0 0000 Morth 0 0000 Height 0 0000 Lanao P Configuration of Receiver Ports
60. es in the corresponding directory If the user has not explicitly selected a destination folder for the files downloaded these files will be stored based on the last specified download path 4 2 2 Real Time Logging dialog window The term real time logging means recording receiver data into a PC in real time mode To open the Real Time Logging dialog window select Real Time Logging from the File menu or press the keys CTRL R The Real Time Logging dialog boxes see Figure 19 and Figure 20 are structurally simi lar to the Main window For a description of the GUI components that are identical for the Real Time Logging and Main windows refer to 4 1 Below we will focus on the compo nents specific to the Real Time Logging dialog boxes Note the three tabs in the top left corner of the window Single file Multiple files and Select output path For information on the Select output path tab refer to 4 2 1 3 Before we get down to the other two tabs let us consider the parameters displayed in the mid dle of the Real Time Logging window between the GPS Satellites and GLONASS Satellites tables The Elapsed time field shows the time elapsed since the current log file was opened Every time a new log file is created this timer is reset to 00 00 00 The Received field shows the log file size in bytes This parameter will vary as new data is recorded into the file After pressing the Stop button you will see the log file s final
61. etup Figure 23 2 Converter to RINEX Setup Ed Observer Surveyor Agency JIMS Antenna juz i Antenna type Marant i Comment This comment will appear in RINEX fles Marker name Ste a Marker number B90 Converte Application CARINEX_convverter jps2tin exe Browse FP Exclude GPS Exclude L1 Exclude GLONASS Exclude L2 Delete source JFS files after successtul conversion Additional options Cancel Figure 23 Converter to RINEX Setup window The information specified in the Properties panel will be put in the header of the corre sponding RINEX observation file e Run by name of the person or agency launching the JPS to RINEX converter e Observer name of the person who collected the data 28 e Agency name of the agency responsible for collecting the data e Antenna antenna number to be copied in the RINEX observation file e Antenna type antenna type to be copied in the RINEX observation file e Comment comment line s e Marker name name of the antenna marker e Marker number number of the antenna marker In the Application edit box you must enter the full path to jps2rin exe Use the button Browse to select the desired filename path instead of typing it Use the checkbox Exclude GPS Exclude GLONASS to exclude from the resulting RINEX files all raw data measurements ephemeris data corresponding to GPS GLONASS Use the checkbox Exclude L1 Exclud
62. ext select the method of modem connection For most RFM96 models you can use Search for modem If the radio is not found change Connection type to Power cycle and press Connect The program will prompt you to turn the modem OFF and then back ON Figure 47 The program will poll the radio during its power up cycle and establish a connection If you have an older RFM96 then start with the radio s power off use the Power cycle type and when prompted connect power to the radio Turn the modem power off or slide the modern from the receiver Then turn the modern power on or slide the modern into the receiver Figure 47 Operations the user should take in Power cycle mode After you make any required changes click the Connect button to activate your changes and connect to the modem with the new settings After a connection with the modem is established you will see a dialog window showing the ra dio link settings and protocol details Figure 48 2 AFMS6 Configuration Configuration Seral No IB437 777 RF Channe E 463 5500 463 5500 a 0 464 5500 464 5500 1 464 5000 464 50001 2 463 5500 463 5500 3 463 5000 463 50001 Radio Link Settings Link rate al FEL Scrambling On Digiequelch Low CSMA monitor On J DTE DLE protocol mode feee El BREAK to Command Addresses Local lo Destination 255 Disconnect Refresh Apply Set defaults Figure
63. fault values Care should be taken that after clearing the NVRAM these parameters are set correctly PC CDU will prompt you to check these settings by opening the Receiver Configuration dialog window In addition the NVRAM is used to keep information about the receiver file system Note that after clearing the NVRAM the receiver s FN LED will flash yellow for a few seconds indicating that the receiver is scanning checking the file system 4 2 10 Reset receiver To reset the receiver select the Reset receiver item from the Tools menu This operation is similar to computer resetting It will not clear the receiver s NVRAM When clicking the Reset receiver option you will be prompted to confirm your command Figure 51 Reset Receiver Fa 2 After resetting the receiver will require T some time to re collect data needed to track satellites Push UK to proceed Cancel to abort i Cancel Figure 51 Reset receiver warning After the command is executed PC CDU disconnects itself from the receiver and then opens the Connection Parameters dialog box prompting you to set necessary parameters to con nect to the receiver again 65 4 2 11 Option Manager window To go to the Option Manager window select the Receiver options item from the Tools menu After you click Receiver options you will see a window that looks like Figure 52 Current Purchased Leased Exp date GPS peg peg no GLONASS VES pez AO LI peg
64. file after the power is restored A new log file will be opened after the power is restored and the receiver will start recording data in this file A file with this name will not be opened and data logging will not be started after the power is restored Data logging will not be started after the power is restored Always Receiver will resume data logging to the same file after the power is restored A new log file will be opened after the power is restored and the receiver will start recording data in this file After the power is restored a file with this name will be opened and data logging will be started After the power is restored a new default named log file will be opened and data logging will be started E Also if the option Always is selected your receiver will automatically start logging data to a newly created or an existing file in the following three cases 1 After switching the receiver ON with the Minter I button 2 After executing the Reset receiver command the corresponding receiver parame ter is par reset 3 After waking the receiver from sleep mode 18 38 Recall that you use the parameter par sleep to make your receiver go into sleep mode 4 2 4 3 Positioning Figure 27 shows the Positioning tab Recelver Config aia Positioning Mode Enable Solutions Satellite management Standalone C DGPS Code Differential Co ATE Float f
65. hen click About or alternatively press CTRL U Click Save to file Specify the name of the text file Click Save The file will be saved onto the selected computer s disk Send the file containing the logs along with a note describing the problem you have encountered to JNS Customer Support using either the pccdu javad com or supportOjavad com e mail address 73 Appendix A PC CDU Scripts Introduction to PC CDU scripts Script is a plain text file each line of which is either a receiver command or a PC CDU com mand or a comment It can be created and edited with a text editor e g Notepad You can also edit an existing script in the Manual Mode window To create a new script or edit an existing one in Manual Mode follow these steps 1 Press the button Edit script 1 Press the button Edit script 2 Enter the name of a new script the field File 2 Select the desired script name in the list of available name scripts 3 Press the button Open 3 Press the button Open 4 Type your script 4 Make necessary changes in the script 5 Press the button Save script 5 Press the button Save script It is recommended to save scripts using the extension jpc To run a script through the command line of the Manual Mode window First enter the script name with the character which is followed by the script name Next specify necessary script arguments if required Finally press the Send command button Script
66. icking the Disconnect button The Start logging button allows you to copy to a text file all information that has been dis played in the receiver replies window during the session With the Load Script button you can load into the receiver the desired script file Use Edit Script if you need to edit your script file For more information about scripts see Appendix A PC CDU Scripts Receiver Configuration window To go to the Receiver Configuration window select Receiver from the Configuration menu or alternatively press the keys CTRL V If you select the Receiver option from the Configuration menu while hold ing down the Shift key the Main window will remain open You will see a dialog window comprising eight tabs Each tab has an Apply button Pressing this button instructs PC CDU to accept the settings you made in the tab without closing the window Note however that each Apply button serves only its own tab and cannot affect the other tabs settings Press Refresh to update the currently displayed window with the new or original settings The OK button unlike the individual Apply buttons allows you to accept the selected set tings for all eight tabs at a time In addition pressing OK will close the Receiver Configuration window Use the Exit button to close the Receiver Configuration window without accepting the settings you have made since Apply was pressed last Pressing Save will open the Save setup to a
67. ified in the corresponding edit box To better understand how multiple files are opened and closed in multiple file mode let s con sider the artificial time scale with the origin at 0 00 00 as shown in the figure below This time scale is divided into intervals equal to the period as specified by New file every fields The first of the multiple JPS files will be opened immediately after the Start button is pressed The first file will be closed and the second one opened as the 2 interval starts i e at 2n see the figure below etc Time duration of the second and all the following multiple files maybe except the last one will be exactly equal to the selected file period To stop the multiple file data logging press the Stop button Note that the last file too can be shorter than it is specified in New file every Duration of Duration of Duration First File second File of last File ooo obhgomaggs Eig an 4r open time for the first file x close time for the last file n period specified in New file every Figure 21 Generation of multiple files If you want PC CDU to overwrite the existing files whose names coincide with the names of the newly created files select the Overwrite existing files checkbox before you start real time logging Example Assume that the Ascending Count and Overwrite existing files options have been selected If you then press the Start button PC CDU will display a
68. ified through the script command line Also you may use the set command to change the variables values The variable 00 which is read only has a special purpose Initially it contains the script name specified in the command line In the course of script execution it will either contain the last of the receiver s positive acknowledgements i e the most recent of the RExxx replies or remain empty After getting RExxx from the receiver PC CDU will search the received sequence for the last of the symbols it contains PC CDU does not assign to the variable 0 the entire RExxx reply but only the characters following immediately after the last symbol until the end of this sequence is found Leading and trailing spaces are trimmed With the set command you can assign the value of 0 to other variables Any line beginning with hash is considered a comment and is ignored by PC CDU script interpreter PC CDU commands Any line starting with the character is interpreted as a PC CDU command with optional ar guments separated by commas or spaces In table below you will find the description of sup ported commands Table 9 List of PC CDU commands Command Arguments Description lt label Specifies a label name gt Label names should not contain spaces or commas See the goto command for how to use labels call lt script name gt lt argu Calls another script ments gt The maximum number of recursive calls is 2
69. ime interval 360 s Max deviations 0 0000 ri O for autol e Show grid Time step i 5 s Deviation step 0 1000 m pa Genera Values to keep 3600 Figure 57 Plots Configuration window To change the color for the points of the Scatter window use the Points colors settings For example if you want that the points corresponding to the absolute position estimates dis played in red take the following steps 1 Move the cursor onto the colored box which is on the right side of Standalone 2 Click either mouse button in a fill area of the box 3 Click the color you want If you do not see the color you want click Define Custom Colors gt gt To the right of Basic colors you will see a custom palette where you can mix your own color After selecting the color you want click Add to Custom Colors and then click OK In the Scatter group box the user can change the settings related to the Scatter window 70 With the Plot Width edit box the user specifies the length of the axes on the plot The Tick Interval edit box specifies the tick size in meters between the adjacent concen tric circles i e interval between adjacent values on the axis To remove the circle grid from the plot clear the Show grid checkbox To link the points in the trajectory select the Connect points checkbox With the checkboxes Standalone Code Differential RTK float and RTK fixed you specify what kinds of solu
70. ing receiver parameter is par log rot sc cout Zero means that an unlimited number of log files will be created From Files remain you can see how many log files are left for the receiver to create in AFRM The associated receiver parameter is par log rot count If the checkbox Automatically remove old files is selected the receiver will start should there be no free space left in the receiver memory overwriting the least recent files The corresponding receiver parameter is par log rot rmold FN key mode You use these two radio buttons to program how the receiver will react to clicking FN i e keeping the button depressed for less than one 1 second In LED blink mode switch mode clicking FN will toggle between Minter s standard and extended information modes For more details see the MINTER User s man ual In Occupation mode switch mode you click FN to get the receiver to insert into the corresponding log file a message indicating that the occupation type has been changed from static to kinematic or vice versa The corresponding re ceiver parameter is par button action Initial data collection dynamic mode These radio buttons specify the starting occupation type descriptor that will be in serted at the beginning of each receiver files logged via MINTER You select Static and Kinematic to specify that the corresponding log file will start with a static and kinematic occupation respectively The associated rece
71. ing the receiver parameter par out elm cur term to its original value Only if the checkbox Passive mode has not been deselected e Resetting the baud rate to 115200 if the receiver s original baud rate exceeded 115200 e Restoring the original baud rate i e that the receiver had before running PC CDU Only if the option Restore the receiver s original on Disconnect has been selected To quit PC CDU select Exit from the File menu Alternatively you can close the program by pressing the keys CTRL X If the receiver has not been disconnected by the time you turn the program off the connection will be automatically broken before PC CDU is closed It is strongly recommended to close the connection with the receiver and close PC CDU prior to switching the receiver OFF and disconnecting the cable 14 4 Learning PC CDU in detail 4 1 Main window After PC CDU has established a connection between the computer and receiver the main win dow will be opened see Figure 8 This window displays the antenna s current position if available and the basic tracking information parameters for the locked satellites These track ing parameters are described in Table 4 The main window consists of two panels the GPS Satellites panel on the left and the GLONASS Satellites on the right which are sepa rated by Geo XYZ Target box 2 PC CDU al ES File Configuration Tools Plots Help GPS Satellites 11 Gen oz Target GLO
72. ion tab PDL configuration SettingS ococcococionecionecioneninnoninnoninneninnoninnoninnonons 63 Configuration tab Recommended Settings ococconocconocconecnononconeninnoninnononnonennoninnonennonons 64 Intialize Flle System WarhlNd sisi 64 RESECTOScaIver Wa Nidia ai cias 65 Option Manager WINdOW ia cias 66 SOCANT WIRIGOW canso aai 67 S Satellites WINdOW ri AAA SS A ma ao ii 68 Pop up menu reflecting the information about the selected Satellite ccsessceeseseeeeeeeeees 69 Figure 55 VI Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 POSICION A a iria ae 70 SPIOtS COMMOUFa ON WINdOW arar 70 About PECEDU AIN a Sh laoi a id 72 Wizards SE WINGOW isis tocata retira 79 Wizard S 2NA WING W lirios 80 Wizard s 3rd WIRKOW m m mmmmmwwvwvwwavwwvvevvevwvwewvwvwwwvwwvvvvwvvvwvvwvwvuvwvvvvwwvevvwwwvwvvevwvwv wvvwvwvewvvwevwvvwvvvv 80 Wizard s 4th window cceccececcececceceeeaeeeuaeeeeaeeeuaeeeeaeeeeaeeuuaeueeaeeuuaeeeeaneuuaeeneeeuaeaeeanenearenetens 81 WIZara S SUA WINGOW added aan 81 yii List of abbreviations acronyms and other notation used in this manual ARP Antenna Reference Point CMR A format used to transmit differential corrections and related data from the Base re ceiver to the Rover receiver in DGPS and RTK applications C A Coarse Acquisition code DGPS Differential GPS DLL Delay Lock Loop DNS Dom
73. iver parameter is Ipar button dyn Data recording auto start You can program how your receiver will behave in the event of a power failure The corresponding receiver parameter is par button auto de In other words existing files will be overwritten based on the FIFO principle 13 This event message is called DYM 37 Depending on which of the three radio buttons has been selected your re ceiver will behave as follows Table 6 How Data recording auto start works Scenario Before a power failure oc curred receiver data were being logged to the file with the name specified in Always append to the file Before a power failure oc curred receiver data were being recorded in a default named file i e the string Always append to the file was empty Before a power failure oc curred the string Always append to the file hada non empty value but data logging hadn t been started yet Before a power failure oc curred the string Always append to the file was empty and data logging was off n off Data logging will not resume automatically after the power is re stored Data logging will not resume automatically after the power is re stored A file with this name will not be opened and data logging will not be started after the power is restored Data logging will not be started after the power is restored On Receiver will resume data log ging to the same
74. iver will use differ ential corrections for position computation This list box relates to the receiver parameter Ipar pos cd port The receiver uses this parameter only if Multi base mode is unchecked Enable Solutions The Standalone checkbox if selected allow the receiver running in a differential mode to yield the absolute position in case the receiver is not able to get a differential solution position The checkbox is associated with the receiver parameter par pos modelsp At the present time the checkboxes Code Differential Phase Float and Phase Fixed are unavailable and being checked at the same time demonstrating that these solution types are also enabled RTK Parameters The RTK mode radio button group serves to toggle between the extrapolation and delay modes If Extrapolation is selected the rover will extrapolate the base station s carrier phase measurements when computing the rover s current RTK position If Delay is selected the rover will not extrapolate the base station s carrier phase measurements to compute the current rover position Instead the RTK engine will compute either a delayed RTK position for 48 the epoch to which the newly received RTCM CMR message corresponds or the cur rent stand alone position while waiting for new RTCM CMR messages coming from the base These radio buttons relate to the receiver parameter par pos pd mode To define the rover dynamics use the Dynamics radio button grou
75. ivers in RTK mode select the checkbox Carrier multipath reduction for both receivers The checkbox is associated with the receiver parameter par raw corr ca carrier Loops Management In this subtab the user can configure the settings that deal with the receiver capability of searching acquiring and tracking the GNSS satellite signals Figure 40 Care should be taken when changing the settings for this subtab An improp erly set control may result in receiver malfunction We recommend that you do not change these settings without good reason For an explanation of this subtab please see details under figure 40 Antidnterterence Multipath Reduction Loop Management External Frequency Raw Data Management Dptions PLL bandwidth 25 0 Ha v Enable Co Op tracking 3 is e Static Mode Bandwidth of individual PLL Hz Guided loop bandwidth 0 5 Hz be Bandwidth of common PLL 25 O Hz Hz C4 code guided loop bandwidth e Enable Adaptive Guided Loops le Enable Common Loop for L2 e Enable P L1 and PAL2 tracking Refresh Apply Figure 40 Loops Management subtab The PLL bandwidth edit box governs the noise bandwidth of the guiding phase lock loops The edit box is associated with the receiver parameter par raw pll band In this box you can en ter values between 2 and 50 Hz With the PLL order edit box the user can toggle guiding and common lock loop order be t
76. kbox corresponds to the re ceiver parameter par rtcm base smooth On condition that the JNS receiver is configured as a dual frequency unit 45 CMR Settings The Station ID edit box corresponds to the receiver parameter par cmr base stid With this parameter the user can specify the base station ID which will be included into the CMR mes Sages transmitted by this base station On the rover side this ID allows easy identification of the reference station whose CMR messages are being received by the rover receiver The list box Motion characterizes the motion of the reference station e Unknown the motion state is undetermined e Static the receiver is motionless e Kinematic the receiver is in motion This list box corresponds to the receiver parameter par cmr base motion Use the Short ID COGO and Long ID to include the reference station s point feature code into CMR message type 2 These edit boxes are associated with the receiver parameter Ipar cmr base desc The radio buttons CA L1 P L1 and the checkbox P L2 which are grouped within the Measurements Sent area allow the user to specify which measurement types will be in cluded into the corresponding CMR messages broadcasted by the reference station The radio buttons correspond to the receiver parameter par cmr base pcode The checkbox P L2 is asso ciated with the receiver parameter par cmr base meas p2 If the receiver is a single frequency unit the
77. ki a Passive made P Manua made only F Restore original Receivers baud rate on Disconnect Internet settings Host name 194 85 135 59 TCP port 8000 Password pinap data or serve Me Log server events e ONS lookup cnc Figure 6 Connection Parameters window in Internet Client mode After all necessary settings are made to this window press Connect You will see PC CDU open the main window and the Chat window The Chat window allows the operator running PC CDU Server on one end to exchange mes sages with the operator running PC CDU Client on the other end Figure 7 Messages sent from the client to the server are preceded by the character gt Messages sent by the server to the client begin with the character lt The last received message is topmost in the list 13 3 2 PC C DU bare at Lo a javaid nali da ais 135 37 8000 Session stated st 1243 Congratulsbore All system pol Server stopped 12 37 48 2729700 Connected to Llyoha javad ru 194 85 13 MSG PC COU Version 1 00 build Novemb Ea rp i Sent 4264 Racy aen Eni Delage 153 102 410 me Figure 7 Chat window How to close PC CDU To disconnect from the receiver select the Disconnect option from the File menu Alterna tively you can use the keys CTRL D to close the connection Pressing the Disconnect button will result in e Turning off RTS CTS handshaking e Resett
78. m such smoothing This integer parameter varies between 0 900 seconds The default value is 60 The edit box is associated with the receiver parameter par raw iono smi With the Minimum Iono smoothing interval edit box the user specifies the mini mum smoothing interval for the receiver to filter raw ionospheric corrections before they can be used in position computation This integer parameter ranges between 0 and 900 seconds The default value is 30 seconds The edit box relates to the receiver parameter par raw iono minsmi Options Figure 43 shows the subtab from which the user can turn on off the Cinderella option Every other Tuesday Cinderella enables the receiver to run as a dual frequency GPS GLONASS unit during 24 hours For information on scheduling Cinderella Tuesdays visit the Cinderella Option page on the JNS web site at http www javadgps com ins technology Cinderella 200ption html These radio buttons are associated with the receiver parameter par opts cind Options Cinderella C On tf Off Figure 43 Options subtab Site Configuration window To open the Site Configuration dialog window select the Site item from the Configuration menu or press the keys CTRL I This window serves the same purposes as the Site Configuration window described in 4 2 1 2 Target Position window To go to the Target Position window either select the Target Position from the Configuration menu or press the keys CTRL T T
79. nally press the Delete button To delete a group of adjacent log files click on the first of them then hold down the SHIFT key and click on the last of the files and finally press the Delete button Log files that have inadvertently been deleted from the receiver memory can be restored with the command set par dev blk a removed on You can send this command to the receiver from the Manual Mode dialog window You are able to recover deleted files only if you haven t recorded any new files in the receiver memory since these files were removed Otherwise we cannot guarantee that the deleted files can be successfully restored With the Refresh button you can refresh the list of the receiver log files Press Exit to close the File Manager tab The Current log file tab In this tab you can delete existing and create new receiver log files Figure 16 21 File Manager Ed Download files Current log file Download path Total memory bytes Free memory 15657 720 bytes Mame 1 02 08 2001 EE 1946 01 08 2001 12 31 10 5 floor 18973 13 08 2001 11 23 17 kir Eb24 09 07 2001 11 35 36 log 709a 13237 03 08 2001 9 05 35 log 09h 19569 09 07 2001 13 18 58 shat 3362 13 08 2001 11 23 48 Current file stat Size IIB File name stat Recording interval 1 00 seconds Site parameters Elevation mask E degrees Start Delete Refresh Exit Stop Data collection started Figure 16 Current log file tab
80. nates Lat latitude Lon longitude Alt ellipsoidal height e Vel magnitude of the velocity m s e RMS Pos rms position error m e RMS Vel rms velocity error m s e PDOP Position dilution of precision e Solution type Standalone Code differential RTK float RTK fixed e LQ This field reflects the status of the received differential messages and con tains the following information Data link quality in percentage Time in seconds elapsed since the last received message These geodetic coordinates are computed in WGS 84 regardless of the current value of par pos datum cur More precisely this is the square root of the trace of the position error variance covariance matrix More precisely this is the square root of the trace of the velocity error variance covariance matrix 16 Total number of received correct messages Total number of received corrupt messages If the receiver is not for some reason receiving differential corrections or if none of the ports has been configured to receive differential corrections the field LQ will either be empty or it will look like this 100 999 0000 0000 Currently the values for this filed are obtained from the MS message e Receiver time shows the receiver s current time within day This value is taken from the message For more information about see the GRIL Reference Manual E
81. nflict of laws Contents 1 PE EDU SOFTWARE prioritaria dd 1 Lili TPE EDU S burposes a a FUMCHONS prada in 1 Liza TYDOGKAPMIC A au 2 1 34 Terminology ana NOOO ria 3 1 4 What information can be found in this document cococcocicconocconocionocconennononinnoninnonennoninnonennnns 3 Lor Sy StemTequirementss is oi de Deets 4 1 6 Full and limited functionality versions of PC CDU cccccceceeseceeeeeeeeeeeeeeeeeeeeeeeeeeeaeeeeeesenaenags 4 IT TECNICI SUPPO aaa 5 2 SETTING UP PG aC std arid s 6 Zile INANG PECOU A o ea eae asa et ears aa ae eta dare ciation tar 6 2 2 REMOVING PG2CDU uscar a 8 3 STARTING P C CD UW ass da 9 dele HOW tO Start UP PCCDU a ss a aadA 9 Seedy a orr e a a a E aE 10 Sior Mermet Senver Mode 11 dls Meret Cent ModE aikaa a a di 12 iz MOWO eile is od CC canin aa diu asia st See Onueues 14 4 LEARNING PC CDU IN DETAIL sica 15 Hb SA Leis arca 15 ELi O 16 AZ Atari 17 Flo Target CAD ii ad 18 F2 The Mal WNdOwW S MENU alias 18 42 Eile Manager o AAA A N a ais eo ha Si ig 19 SIAR I Downoad Mesa 19 4 2 1 2 The Current log file Tari is sexs 21 Ae kos Downoad DAMN tadas iaa 24 4 2 2 Real Time Logging dialog WindOW occoconcoconioneniononeononencononcononcononrononrnronranonennenianeninns 24 lille Sale Me taa a 25 eee SMUIDE TeS tad ia idolo 26 lid Manta Mode WIN Wisin 29 4 2 4 Receiver Configuration WINGOW csccscecsscsecscceseesececurcecaesecutonsaee
82. nforma tion for the care and operation of your Receiver The information and data in this Manual are a valuable asset of JNS and are developed by the expenditure of considerable work time and money and are the result of JNS original selection coordination and arrangement TRADEMARKS Javad and Javad Navigation Systems are trademarks of JNS Windows is a reg istered trademark of Microsoft Corporation Product and company names mentioned herein may be trademarks of their respective owners DISCLAIMER OF WARRANTY EXCEPT FOR ANY WARRANTIES IN A WARRANTY CARD ACCOMPA NYING THE RECEIVER THIS MANUAL AND THE RECEIVER ARE PROVIDED AS IS THERE ARE NO OTHER WARRANTIES JNS DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR USE OR PURPOSE JNS AND ITS DISTRIBUTORS SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING PERFORMANCE OR USE OF THIS MATERIAL THE SOFTWARE OR THE RECEIVER SUCH DISCLAIMED DAMAGES INCLUDE BUT ARE NOT LIMITED TO LOSS OF TIME LOSS OR DESTRUCTION OF DATA LOSS OF PROFIT SAVINGS OR REVE NUE OR LOSS OF THE PRODUCT S USE IN ADDITION JNS IS NOT RESPONSIBLE OR LIABLE FOR DAMAGES OR COSTS INCURRED IN CONNECTION WITH OBTAINING SUBSTITUTE PRODUCTS OR SOFTWARE CLAIMS BY OTHERS INCONVENIENCE OR ANY OTHER COSTS IN ANY EVENT JNS SHALL HAVE NO LIABILITY FOR DAMAGES OR OTHERWISE TO YOU OR A
83. ng the computer s serial or parallel port and an appropriate cable see Figure 4 To connect your computer to the receiver in Direct mode 1 Select from the Port list box the serial COM1 COM2 or parallel LPT1 port that you want to use for connection 2 From the Baud Rate list box select the desired baud rate El The checkbox Infrared port is selected when you want to use an infra red adaptor to establish a connection between your computer and receiver over an infrared data link Connection via an infrared port will be available only if the following condi tions are met e An appropriate external infrared adaptor is connected to the selected serial port on the computer side e Your receiver supports the infrared port hardware wise e The option Infrared Port is enabled in your receiver 3 Select the RTS CTS handshaking checkbox optionally EI It is strongly recommended that you select the RTS CTS checkbox as this makes data exchange between the receiver and computer more reliable Prior to selecting this option make sure that e RTS CTS handshaking is supported both at the computer and at the receiver 10 e The cable used allows RTS CTS handshaking 4 Press Connect Along with the above listed options the user may need to adjust some of the settings in the Program Settings panel This panel includes the following three options e Passive mode e Manual mode only e Restore the receiver s original bau
84. om the FCO Veinte anand E T 20 SCIENCI taaan pas 22 Site Configuration dialog DOK aia 22 DOWIMOAC path taa 24 Real Time Logging dialog WINKOW cscsscscsecsececarsesseceeutcnsaesecutonsuesecuectseeeseeotsetanseeenees 25 AICI les tasar 26 Generation of multiple THES id 27 Overwrite existing files WArNiING csceccscsecsececetcetsececetcnssecucnronssececuroasseseseeotseeaeseeetseeaets 28 Converter to RINEX Setup WINKOW cscsscsrsecsececarsecsecnentcnsuececeronsueseentonsetanseeotsetanseeenegs 28 Manual Mode wind OW mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmHh 30 RTE TAT GUI el EAE AEA E PEA aise cared bicveax E A there nae eat pant eae Laas E A E T 32 BID ERS Tasador 36 Blues lists Cats 39 lt DATUM ID Datum Parameters WINdOW ococcococconoccononconeninnonennononnononronennonenronenconennones 40 a Ait 0 A PEO ES eects E 41 GULONASS CAD anal 42 WAAS Taiana si 43 iss SS O raise 44 ROVER ID adi 47 SPORS tas 50 Parallel SUD 52 Modem SUD tddi 52 YEVON Dai ade 53 Aavancea SUD 55 Multipath Reduction tab nr iO 56 LOOPS Management SUD 56 External Frequency SUDUAD taaan 58 Raw Data Management subtaD aio 60 Options SUD tia ia 61 Target POSION WINGOW isaac cian 62 A IEM aoi O 62 CONNEC Es 5 OPORTO ni mimh 62 Operations the user should take in Power Cycle mode coococcococionoccononionononnonennononronennonennono 63 Configurat
85. ond parts of PPS signal offsets with respect to the selected reference time grid using the Offset ms edit box for millisecond part and Offset ns for nanosecond part These four edit boxes are associated with the receiver pa rameters par dev pps a offs ms par dev pps b offs ms par dev pps a offs ns and par dev pps b offs ns respectively With the Period of marked pulses edit box the user specifies the period of the marked 1PPS signal These edit boxes relate to the receiver parameters par dev pps a mper and par dev pps b mper Using the Edge radio button group the user synchronizes the edge rising or falling of the 1PPS signal with the specified reference time The radio buttons are associated with the re ceiver parameters par dev pps a edge and par dev pps b edge The Ref Time radio button group allows the user to select the reference time that the 1PPS Signal will be synchronized with There are four available reference time scales e GPS means GPS system time e GLO means GLONASS system time 53 e UTCus means UTC USNO e UTCsu means UTC SU These radio buttons are associated with the receiver parameters par dev pps a time and Ipar dev pps b time respectively If the user selected the Tied with Ref Time checkbox the receiver will synchronize the 1PPS signal with the chosen reference time Otherwise 1PPS will be synchronized either with the receiver s internal clock or with an external frequency in
86. options and other GUI components This format is used to specify keys and key combinations This format is used to enter various string in formation e g file and directory names as well as user commands This format is used to describe the sequence of steps that the user must take The user is recommended to take note of the given information These hints and tips will help the user learn the program faster The user is warned about possible errors 1 3 Terminology and notation Table 2 shows what terminology and notation are used for standard Windows GUI components 1 4 in this manual GUI component Get from receives Short ID l AAM Enabled PPS E Enabled f GPS GLO at one time External A Downloading ADU_Base_day 2 1 alle as GPS 0 5 43410 ADL Base day 2 45528012 base floor 2009 2543960 Bad Unknown Elle Configuration Tools Plots 03 10 2001 07 09 2001 11 36 03 28 09 2001 14 48 04 Help 14 29 28 Table 2 Terms used in this manual to describe standard Windows GUI components Term Button Edit box or indicator Selected checkbox Unselected checkbox Selected radio button Unselected radio button Progress bar Status bar Spin button File List box Drop down list box Menu Tab Control What information can be found in this document This document provides all information necessary for the user to comprehensively learn PC CDU
87. ou will see the comment Option loaded You need to configure the receiver click the Refresh button to refresh the list of available options 66 4 2 12 Scatter window To go to the Scatter windov select the Scatter item from the Plots menu This is a useful graphic feature allowing you to monitor the behavior quality of the receiver tra jectory position Figure 53 Scatter Shel Avg Lat 55 42 51 3650 N JAMS Pos hor 2 18 m AMS Welho 0 0219 m Avg Lon a ab 34 4655 E AMS Pos ver 3 1124 m AMS Vel ver 00311 m Avg Alt 197 7050 m AMS Pos 3804A m AMS Vel 0 0380 m Total 3021 Standalone 100 Code di 0 ATK float Ox ATE fired 0 Max ETT 4318m Mas NTT 5 39 m Avg ETT 0 009 m Avg NTT 0 070 m Clear all points Fit all points T Figure 53 Scatter window The window is divided into the scatter plot and an augmented status bar The plot displays the current receiver position relative to the position specified in the Target position window The most current receiver position is showed by a red point Status bar contains the following information e average latitude longitude and ellipsoidal height of the receiver s position over the entire set of obtained position estimates e horizontal position RMS error e vertical position RMS error e total position RMS error i e the square root of the trace of the position error vari ance covariance matrix e horizontal velocity RMS error e
88. ously obtained estimates estimated position variance covariance matrix etc will be thrown away and the RTK engine will then start from scratch The button corresponds to the receiver parameter par pos pd reset To access the tab allowing you to revise and edit port settings either click the Ports tab or press the Configuration of Receiver Ports button Ports With this tab the user can specify all necessary settings for serial ports A B C D parallel port and internal modem The tab is subdivided into three subtabs Figure 34 General MINTER Positioning Bate Rover Ports Events Advanced Serial Parallel Modem Input Command Baud rate 3600 x Output None Period sec IT RATSACTS Input i Command oF B aud rate i 115200 Output None Period sec Ries Serial Serial B Input Command Baud rate 1115200 Output None Period sec TP ATS CTS Serial E Serial D Input i Command a E auid rate 115200 m Infrared Output None Period sec TIT RATSfcts Refresh Apply E sit Save Set all parameters to default Figure 34 Ports tab Serial Use this subtab to control the settings for serial ports A B C and D see Figure 34 The list box Input allows the user to specify what incoming data types the corresponding port is tuned for e None means that the port will neglect any incoming data e Command the port i
89. p The corresponding pa rameter is par pos pd dyn The Ambiguity Fixing Level radio buttons govern the process of the RTK engine fixing integer ambiguities The RTK engine uses the ambiguity fix indicator when making decision whether to fix ambiguities or not Low Medium and High correspond to the indicator s 95 99 5 and 99 9 states respectively The higher the specified confidence level the longer the integer ambiguity search time This is the price we have to pay for the higher reli ability of the ambiguity fixed solution These buttons are associated with the receiver parameter par pos pd aflevel The Measurements Used checkbox group allows the user to select measurement types used by the rover for position computation The checkbox CA L1 corresponds to the receiver parameter par pos pd meas ca the control P L1 corresponds to the receiver parameter Ipar pos pd meas p1 the control P L2 is associated with the receiver parameter par pos pd meas p2 In the Base Corrections period edit box the user can set the differential correction up date interval It should be noted here that the user must know the exact rate at which the ref erence station broadcasts its differential correction data This edit box corresponds to the re ceiver parameter par pos pd period The receiver will use the control Base Corrections period only if it runs in Delay mode Also this edit box is used to provide more reliable syn chronization between the base
90. pectively The Ref Time radio button group sets the reference time scale that the event reception time will be synchronized with These radio buttons are associated with the receiver parameters Iparldev event a time and par dev event b time With the Tied with Ref Time checkboxes the receiver is instructed to measure the event reception time in the selected reference time with or without consideration for the computed receiver clock offset These checkboxes relate to the receiver parameters par dev event a tied and Ipar dev event b tied respectively 54 4 2 4 8 Advanced The Advanced tab is composed of six subtabs as illustrated in Figure 38 Warning Only change these advanced settings when you know what they mean Unsuitable changes to these subtabs can cause the receiver to run im properly If you are doubtful of any changes you made to these subtabs you can always get the factory default settings back by pressing the Set all parameters to defaults button For a description of these subtabs re fer to the corresponding paragraphs below amp gt Receiver Configuration A ntenterterence Multipath Reduction Loop Management External Frequency Raw Data Management Options Ant lntererence Off C GPS LiL C GLONASS L1 L2 C GPS GLONASS L1 C GPS GLONASS L2 C Auto Refresh Apply Exit Save Set all parameters to defaults Figure 38 Advanced subtab Anti Interference With the Anti Int
91. r will average the computed positions not the received corrections These radio buttons correspond to the receiver parameter par pos cd mult mixmode If the Best checkbox is selected the receiver will use differential corrections that correspond to the most precise of the obtained position estimates Best means that the solution has the least RMS error The Best checkbox is associated with the receiver parameter Ipar pos cd mult best In the CD Corrections max age edit box the user can set the maximum age in sec onds of the code differential corrections used for position computation Here you can enter an integer value between 1 and 1200 Default is 30 If the age of the corrections exceeds the value specified in this edit box the rover will compute a stand alone position The edit box relates to the receiver parameter par pos cd maxage Use the Iono Corrections max age edit box to specify the maximum age in seconds of the ionosphere corrections used for position computation The corresponding receiver pa rameter is par pos cd iono maxage If you set the Use Iono Corrections checkbox to on the rover receiver will use in posi tion computation both the ionosphere corrections from RTCM message type 15 and differential corrections from RTCM messages types 1 and 31 or 9 and 34 This checkbox is associated with the receiver parameter par pos cd ionofree The list box Source serves to specify the source port from which the rece
92. reated in real time logging mode will coin cide with the site name from the Site Configuration dialog box 25 4 2 2 2 Multiple files tab This function real time logging of multiple log files is intended to automate the process of real time downloading of the receiver data to JPS files according to the specified time schedule In this mode PC CDU will automatically open close JPS files in regular time intervals Figure 20 A new JPS file will be opened immediately after the previous file is closed Pret site Numbering Date amp Time a Next fle every fi hours Autoconvert ta RINE Current file tart Enung o PF Overarite existing files Setup converter Output path E GPS Satellites 8 GLONASS Satellites 5 Le EL amp cal Pi Pel tel Receiver Position j 2653555 2979 YE 2196995 9446 09 45 292 49 39 39 33 5246761 6066 11 1b 421 421 23 231101 Wel 0 0469 mas 1 39 2566 4 20 0 151 PDOF 1 7642 2d 12 324 42 el 22 83 Receiver date 03 01 2002 a9 ee E vel ae eae 351281 Receiver time 09 10 43 Elapsed time 00 00 00 Received Recording interval seconds Exit Elevation mask 30 degrees A Figure 20 Multiple files tab The filename convention settings Prefix and Numbering determine how the JPS files created will be named As the name of the setting implies Prefix determines the prefix part of the filename By de fault
93. rect message output interval the Period edit box PC CDU will run a utility called Output Period Setup Wizard For more information on the Wizard see Appendix B Output Period Setup Wizard To set the baud rate for the corresponding receiver port use the Baud rate list box The list box is associated with the receiver parameter par port rate The checkbox RTS CTS enables disables hardware handshaking for the port The checkbox is associated with the receiver parameter par port rtscts In addition to described settings port D has a unique checkbox Infrared that permits the user to configure this port as infrared device The checkbox relates to the receiver parameter Ipar port ir Use Infrared mode only if the following conditions are met e A device you are going to connect to is compatible with the receiver infrared interface for example CDU 1 e Your receiver supports the infrared port hardware wise e The option Infrared Port is enabled in your receiver 21 This message type has been developed by JNS to overcome some limitations existing in the original CMR protocol 51 Parallel These settings are similar to ones in the Serial tab except for the fact that the settings design to control parallel port Figure 35 2 JPS Receiver Configuration General MINTER Positioning Bate Rover Ports Events Advanced Input Command Output None Feriod sec Figure 35 Parallel subtab
94. rnet In this case the user must run his her PC CDU in Internet Client Mode Keeps track of the total number and the status of all visible satellites Displays the receiver s current position and time in real time Controls the recording of raw data measurements into the receiver s internal mem ory Downloads collected raw data measurements log files from the receiver s internal memory onto the computer s disk drives Records in real time the receiver s raw data measurements on the computer s disk in JPS and RINEX formats using the executable file jps2rinex exe Displays in real time the graph of the receiver s current position and the satellite sky plot Allows displaying and programming the receiver s main settings such as Data Re cording Interval Position Computation Mode etc Allows display of the current receiver options and loading of Option Authorization Files 1 2 Typographic conventions Table 1 specifies all typographic conventions used in this manual Table 1 Document conventions Example Clock offset Select from the File menu Press CTRL V Type the string 194 85 135 59 To clear the NVRAM 1 Select the option Clear NVRAM from the Tools menu T Some good hints r aif JAW Caution By no means use Description This format is used in definitions or when it is necessary to emphasize that the marked term is technical jargon Titles of dialog windows boxes names of menu
95. s CI Symantec Norton Antivirus C Fur pictures CJ TEMP 1 General folder CI Test Tex a hy Com puter es Tel Mu Network F Winzip File 7 a f Figure 2 Select a destination for the archive pccdu_ms zip 4 Wait while the archive is being downloaded onto your system Figure 3 I E 25 of pecdu_ms zip Completed a pen older Figure 3 Copying data from the website to your computer s disk drive 5 Create a folder on your local disk drive 6 Unpack the archive into this folder with WinZip or another appropriate software You will see the following files appear in the folder e Executable file Pccdu exe e Auxiliary binary file Iptaccess vxd It is recommended to use C Program Files JNS PC CDU 7 2 2 Removing PC CDU The simplest way to remove PC CDU from your system is to delete the whole directory which you created when installing PC CDU and in which Pccdu exe and other PC CDU related files re side Also do not forget to delete the PC CDU shortcut if available a Assuming this directory is not used for storing any other i e PC CDU unrelated data 8 3 Starting PC CDU 3 1 How to start up PC CDU PC CDU can be launched as any other windows program in one of the following ways WAY 1 Double click on PC CDU s shortcut on the desktop if it has been created WAY 2 In Windows Explorer go to the directory where Pccdu exe resides and double click on th
96. s in command mode In this mode the port recognizes the commands sent by the user e Echo the port is in echo mode Being used in this mode the receiver port redirects all incoming data to an output stream Note that output stream may be either a port or the current logfile e RTCM the port is in RTCM input mode 50 e CMR the port is in CMR input mode This list box corresponds to the receiver parameter par port imode The list box Output allows the user to specify what outgoing data types the corresponding port is tuned for e None the port outputs nothing e DGPS full output the port outputs RTCM message types 1 31 e DGPS partial output the port sends RTCM message types 9 34 e RTKRTCM output the port issues RTCM message types 18 19 22 3 e RTK CMR output the port sends CMR message types 107 0 1 e User Defined the port outputs data specified by the user It means that the user defined some arbitrary message set that will be outputted through the port In the Period edit box the user sets the message output interval in seconds It is worth noting however that the period of RTCM messages types 22 3 and CMR message type 1 cannot be changed with this edit box The default period for the mentioned messages is 10 s If you want to vary the period you should use the em command from the Manual Mode window For more details on em refer to the GRIL manual If you set an incor
97. script window In this window you can save the current receiver settings to a script file Script files normally have the extension jpc Later you can load the desired script file to the receiver thus enabling several necessary re ceiver settings with a single operation The button Set all parameters to defaults does exactly what its name implies 31 4 2 4 1 General Figure 25 shows the Receiver Configuration window s General tab Receiver Configuration SF uaim Elevation mask degrees Terminal Elevation Mask 5 Antenna Antenna Status read only o tetra E Brema i Auto Current Input ext Ext OC Status Jott Temperature Celsius degrees Board temperature Curent Mode foll Power output modes Ports Slots On On W Enable Low Power Mode Exit Save Set all parameters to defaults Figure 25 General tab In the Terminal Elevation Mask edit box you enter the minimum elevation i e the elevation mask angle for the satellites whose data will be output to the current terminal This Refrezh elo setting relates to the receiver parameter par out elm cur term The radio buttons Internal External and Auto from the Antenna group are used to select the desired antenna type These buttons are associated with the receiver parameter Ipar lant inp Table 5 shows what antenna type settings are allowed for different receiver models and board types Table 5 Allowed antenn
98. sociated with PC CDU It means that you can launch PC CDU specifically in Manual mode by clicking on a script in the file directory tree It can be achieved with the use of Windows Explorer My Computer or some other Win dows file manager After the Connection Parameters dialog box pops up you press the Connect button to open PC CDU s Manual Mode window Note however that the script you selected will not start automatically so that you should type the name of desired script in the command line or select the script through the Load script button After exiting manual mode you can continue working with PC CDU in the usual way 78 Appendix B Output Period Setup Wizard The Output Period Setup Wizard is a feature that helps you select and set the cor rect values for generating raw data and updating the receiver position PC CDU will open this Wizard only if you try to specify an incorrect recording interval Once the Wizard is run follow the onscreen instructions to adjust the typed values The following five figures which are given here just for your convenience show how the Out put Period Setup Wizard windows look These windows are listed in order of appearance Dutput Period Setup Wizard Warning The requested value of Output Period Recording Interval is Hot supported by pour receiver due to the limitations imposed by the receivers current settings Press Cancel to force Output Period to be the requested value anyway
99. t to Medium or Low Initialize file system To initialize the file system in the connected receiver select the Initialize file system item from the Tools menu This procedure is to some extent similar to disk formatting It results in erasing all of the files inside the receiver After pressing Initialize file system you will be prompted to confirm the command Figure 50 In practice you do not execute this procedure very often Iinbialize File System This operation will erase all the files Inside the recelver It may take up to 10 minutes depending on the recener memory size Do vou really wish bo continue Figure 50 Initialize File System warning Note that the command s execution time may be up to 10 minutes depending on the receiver s memory size 64 4 2 9 Clear NVRAM To clear NVRAM select the Clear NVRAM item from the Tools menu The receiver s non volatile RAM NVRAM keeps data required for satellites tracking like ephemeris and receiver position NVRAM also keeps the current receiver s settings like active antenna input elevation masks recording interval and information about the receiver s internal file system Clearing NVRAM may help you solve existing problems with satellite tracking After clearing the NVRAM your receiver will require some time to re collect the new ephemerides and complete almanacs around 15 minutes Clearing the NVRAM sets all receiver parameters back to their factory de
100. t must have been enabled in your re ceiver Selecting the Exclusive mode checkbox will allow you to considerably increase the data transfer speed especially if 115200 or a higher baud rate has been set Note however that us ing this option will disable most of the processes running inside the receiver including the satellite tracking process in order to ensure the highest possible file transfer speed One more note about downloading the receiver log files onto the computer If the Exclusive mode checkbox is not selected you can start download ing the current log file without closing it first The downloading process will stop at the moment when EOF is reached in the log file but the receiver will however keep on writing new data to the log file after that This method has two drawbacks First the download progress indicator can occasionally display values exceeding 100 Second the last record can be corrupt in the downloaded file If Exclusive mode is on it is impossible to start downloading the current log file without closing it first In other words if the Exclusive mode checkbox has been checked and you want to start downloading the current log file PC CDU will automatically close the log file after the download is finished Use the Delete button to delete unnecessary log files in the receiver memory To delete a group of log files click on any one of them then hold down the CTRL key and select the rest of the files and fi
101. t status Internet Client Mode The user selects Internet Client mode when it is required to access a remote receiver that is directly connected with and controlled by a computer on which PC CDU Server is being run the obvious pre condition is that both computers must have access to the Internet After a connection to the remote receiver is established the user can control this receiver ex actly in the same manner as if the user s computer were directly connected to the receiver specifically send commands to the remote receiver download log files from the receiver s memory etc In order to be able to connect to the remote receiver the user first needs to con 12 figure his her computer as a PC CDU Client capable of working with the correspond ing PC CDU Server The user is required to know the following information about the PC CDU Server e IP or DNS address e TCP port number e password if necessary Figure 6 shows an example of the Connection Parameters dialog window with the fol lowing settings e PC CDU Server s IP address 194 85 135 59 e TCP port number 8000 e Password is not used In the Host name edit box the user can enter either the server s IP ad dress it is 194 85 135 59 in the given example or its DNS address it is pab javad com in this case Connection Parameters Connection mod Direct O Internet Server Por COMZ i Eaudtate 115200 nraed port P REEE hanashal
102. ta from the website to your Computer s disk driVe coccccoccoconiononcononinnoneanononnonos 7 Figure 4 Connection Parameters dialog ccscscsscsesecstcececsecuececarecntncansecntencarseeutsecarsasseseeutonsaeseggs 10 Figure 5 Connection Parameters window in Internet Server mode ccccsceeceeeeeeeeeeeeeeeeeeeeeeeeeeeanees 12 Figure 6 Connection Parameters window in Internet Client mode occococccconcnnoninnonennoninnonenianonons 13 Rue 7s Chat WINCOWsss tasas 14 Faure 8 Mal WINdOWe ida dado 15 PIGU RCs De GEO tada ada rd 16 Eure Oe AYZ taa acid 17 IS Mix BI Tage taa 18 Figure 12 The Mainwindow s MONU ccccsesccseerseeseceectseeaeceeceseeaeseentencarseentseearsaentsesarsasseseentoaseesnsss 18 Figure Download TES taninos 19 Figure 14 Message notifying that a file with the same name already exists ooccococccconcoconicnoneanonennanos 20 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Figure 52 Figure 53 Figure 54 Message notifying that a problem occurred while retrieving the current block of data fr
103. ta only from the satellites with higher elevations and the number of satellites in cluded in the RTCM messages will not be greater than that specified in the edit box This edit box is associated with the receiver parameter par rtcm base svm The Health list box is intended to define the reference station status e Good station is operating normally e Bad station is not working normally e Unknown station health status is unknown The corresponding GRIL parameter is par rtcm base health With the radio buttons Measurements Sent the user specifies the measurement types that will be included into the RTCM message types 18 through 21 Currently the mentioned RTCM messages always contain C A measurements You can also include either or both P L1 data and P L2 datat in these messages The checkbox CA L1 corresponds to the receiver parameter par rtcm base meas ca The checkbox P L1 is associated with the receiver parameter Iparlrtem base meas p1 The P L2 checkbox is associated with the receiver parameter par rtcm base meas p2 The GPS and GLONASS checkboxes which are grouped together within the System Used area indicate the satellite constellations included in the RTCM message types 18 19 20 and 21 These checkboxes are associated with the receiver parameter par rtcm base sys If the Pseudo range smoothing checkbox is selected the receiver will use smoothed pseudoranges in the RTCM message types 19 through 21 This chec
104. tact with JNS Customer Support please use the following e mail addresses pccdu javad com or support javad com 2 Setting up PC CDU 2 1 Installing PC CDU There is no special installer for the current version of PC CDU This tool is a ready to run execu table To install PC CDU on you computer take the following steps 1 Visit the JNS section http www javadgps com of the Javad website page Click on the Support link in the top left corner of the window Next select the Software Updates link Finally click on the link Click here to download pccdu_ms zip to start data downloading To download PC CDU Lite select the Free Software link on the Support page 2 The File Download dialog box will be opened To continue the download process press Save Figure 1 File Download Tx 2 You are downloading the file peedu_me zlp from Www javadgps com Would vou like to open the file or save it to your computer Open i i Cancel More Info Always ask before opening this type of file Figure 1 Dialog box File Download 3 Use the dialog window Save As to specify the desired destination disk drive folder for the archive pccdu ms aip Figure 2 Local Disk C Ue E adjustment CI INSTALL JD ADOBEAPP CAPS view anu CI KPCMS I BackupGRIL CU LaTex h 11 C amp C 7 Ms Desktop _ Debug CI 04F Mhi JJ doc 3 PC CDU exe eee _ Documents and Settings Ca Program Files es Experiment
105. tation by the user SV with this freguency channel number is excluded from position computation by the user i This SV is excluded from solution since its system number is unknown This SV has elevation lower than the specified mask angle Reserved Ephemeris data is too old This SV does not belong to the constellation the user has selected Differential data from Base Station are not available for given satellite this field is meaningful only when receiver runs in DGPS Reserved Wrong measurements have been detected by RAIM SNR below specified minimum level Reserved Reserved DLL is not settled Ionospheric corrections are not received from base Coarse code outlier has been detected Reserved SV is not used in RTK processing It is similar to code 20 but is used specifically for RTK The same as 30 82 51 Reserved 32 C A slot is used in RTK processing 93 P L1 slot is used in RTK processing 94 P L2 slot is used in RTK processing 95 P Li 8 P L2 measurements are used in RTK processing 56 62 C A amp P L2 measurements are used in RTK processing 63 Reserved 1 GPS only 2 GLONASS only Codes 0 3 and 45 62 will show for the given satellite which raw data meas urements have been used in position computation The rest codes will indi cate why this satellite has been excluded from position computation 83
106. te Update Rate 100 ma Curent Update Aate 100 mz Position Update Rate Update Rate 100 ms Current Update Rate 100 mz Code smoothing interval 50 Doppler smoothing method 2 Nominal lono smoothing interval 60 z Minimum lono smoothing interval 30 z Refresh Figure 42 Raw Data Management subtab The Raw Measurement Update Rate group allows the user to determine the raw data update period In the Update Rate edit box enter a value in milliseconds to specify the period The box corresponds to the receiver parameter par pos raw msint With Current Update Rate you can check which period is actually being used by the receiver This filed corresponds to the receiver parameter par raw curmsint The Position Update Rate group allows the user to determine the receive position up date period In the Update Rate edit box enter a value in milliseconds to specify the pe riod The edit box is associated with the receiver parameter par pos msint With Current Update Rate you can check which period is actually being used by the receiver This field is associated with the receiver parameter par pos curmsint When you open a file regardless of whether this operation was done from the Real time logging window or the File Manager window and the recording interval had an incorrect value PC CDU launches a utility called Output Period Setup Wizard For more information about the Wiz ard see App
107. the latter case the parameter Ipar frq input must be set to ext In order to enable or adjust the event input function use the controls described below The checkboxes Event A Enabled and Event B Enabled correspond to the receiver parameters par dev event a in and par dev event b in respectively With these controls the user enables the receiver to measure and log event times in the specified reference time with high accuracy If the Clock Synchronization checkboxes is selected the receiver carries out one time synchronization its one millisecond cycle grid with the corresponding edge of the event signal These checkboxes are associated with the receiver parameters par dev event a lock and Ipar dev event b lock respectively The Status indicator shows whether the receiver clock is actually being synchronized with the event signals or not If you see on in the field it means the synchronization has been done suc cessfully These fields relate to the receiver parameters parldevlevent allocked and Ipar dev event b locked respectively In some cases however it can be necessary to perform the synchronization again For this purpose click the Repeat Synchronization button several times until on appears The Rise and Fall radio buttons serve to measure the time of either the rising edge or falling edge of the input event signal These radio buttons correspond to the receiver parameters Ipar dev event aledge and par dev event bledge res
108. this value will be returned in the following three cases 1 If the external frequency oscillator is disconnected 2 If the amplitude of input signal is too low 3 If the actual external frequency is different from that specified in the Ext frequency value edit box locked indicates that the receiver is using the external frequency The field is associated with the receiver parameter par frq stat e With the Ext freq signal amplitude field the user can estimate the exter nal frequency signal amplitude 58 xa off indicates that the internal oscillator is actually being used low indicates that the external frequency signal s amplitude is lower than needed ok indicates that the external frequency signal s amplitude meets the Specs This field correspond to the receiver parameter par frq amp The Oscillator Offset Reduction group box allows the user to govern the behavior of the internal crystal oscillator e The Off radio button means that oscillator frequency offset reduction mode is turned off e The Freq Locked radio button means that the receiver will adjust the internal oscillator s frequency until the measured frequency offset is reduced to zero By us ing the incoming satellite signals the receiver will force the internal oscillator to generate a very stable 20 MHz frequency signal This frequency output is available via the corresponding receiver output pin The user is able
109. tions will be shown on this plot The Position group box contains the settings that govern the graphs in the Position win dow The edit box Time interval specifies the length of the x axis in seconds The Max deviation edit box specifies the length of the y axis in meters To turn off the grid clear the Show grid checkbox The Time step edit box specifies the time in seconds between adjacent vertical gridlines The Deviation step edit box sets the distance in meters between adjacent horizontal gridlines The Values to keep edit box determines the size of a circular buffer used to store the posi tions of the receiver s antenna The default value is 3600 When the buffer is full the new val ues overwrite the oldest This circular buffer is used with the aim of saving the computer mem ory consumption when the graphs have been being monitored for a long time continuously during several hours days etc To commit any changes that you have made without closing the window click Apply 71 4 2 16 About PC CDU To access the About PC CDU window either select the About item from the Help menu or press the keys CTRL U The About PC CDU window shows software version information and after establishing connection information about the receiver Figure 58 E About PC CDU FC CDL for Windows 959872000 Version 2 1 10 M5 Build April 1 2002 Expiration Date December 31 2002 Copyright E Javad Navigation Systems 2000
110. titutions This string may contain escape sequences in a C like style to represent non printable characters Sequence Value Character a 0x07 BEL b 0x08 BS f Ox0C FF n Ox0A LF r 0x0D CR t 0x09 HT v Ox0B VT Ox5C Backslash NE 0x22 Double quote O any O octal character code xH any H hexadecimal character code With this command you can send any bytes to the receiver Example send OFF r n set 1 rate lt new baud rate gt With these commands you can handle both serial ports pa 2 rtscts on off rameters and PC CDU s internal variables 3 lt variable gt lt value gt Example 1 Suppose you have a script with the commands set 1 a text echo 1 When the script interpreter reaches the two commands you will get the following reply gt a text Example 2 Assign the current terminal s baud rate to 2 print par cur term rate set 2 0 sleep integer number of milliseconds PC CDU interrupts script execution for specified time interval 76 StOp Stops script execution stoponerrors on Enables disables PC CDU stop on error option This indicates off whether PC CDU will stop script execution after getting an ERxxx message from the receiver Default is on timeout integer value in milliseconds If a receiver command starts with a symbol PC CDU will default is 5000 wait for the receiver to reply within the specified timeout interval If a reply is received during this time it will be saved to the varia
111. to MINTER MINimum INTERface amp gt Receiver Configuration Recording interwal fi 00 seconds FH kev mode Elevation mask for Log file 5 degrees LED blink mode switch C Occupation mode switch File name prefix flog Initial data collection dynamic mode Always append to the file f Static E Finematie Files Creation mode Data recording auto star Logfile O AFAM Off On Always Automatic File Rotation Mode AFAM parameter Eerad seo Files total o Phase aa E Files reman fo 2utometealll remove aid les Refresh Apply Exit Save Set all parameters to defaults Figure 26 MINTER tab The recording time interval specified in the Recording interval edit box will be used when receiver files are opened and logged via MINTER i e by pressing the FN button This setting is used not only when logging a single log file but also when logging receiver data in AFRM mode The corresponding receiver parameter is par log sc period Note that this parameter cannot ex ceed 86400 seconds If you set an incorrect recording interval the Recording interval edit box PC CDU will run a utility called Output Period Setup Wizard For more information on the Wizard see Appendix B Output Period Setup Wizard Elevation mask for Log file specifies the minimum elevation angle for the satellites whose data will be put in the receiver files logged via Minter i e by pressing FN The corre sponding receiver
112. ts 34 Off power on all available serial ports will be absent even if the receiver is turned on Always the power board will feed all available serial ports even if the re ceiver is turned off The Ports list box is associated with the receiver parameter par pwr ports e With the Slots list box the user governs power output on the internal slots On means that all slots are powered if the receiver is turned on Off means that internal slots will not be powered even if the receiver is turned on Always means that internal slots will be powered even if the receiver is turned off The list box is associated with the receiver parameter par pwr slots Turn on off Slots e Select the Slot 2 Slot 3 and Slot 4 checkboxes to enable the corresponding internal slots These checkboxes correspond to the receiver parameters par pwr switch and par pwr switch N The first parameter allows you to enable all slots simultaneously The second parameter allows you to enable only one slot at a time Here N is the slot number 2 3 4 The list boxes Ports Slots and the Turn on off Slots group box are applicable to the HiPer and Odyssey E receivers only If the checkbox Enable Low Power Mode is selected the receiver s processor will go into low power consumption mode The corresponding receiver parameter is par lpm 35 4 2 4 2 MINTER In this tab see Figure 26 you can set up receiver parameters related
113. ur Pressing the Datum Parameters button will open the lt Datum ID gt Datum Parameters window Figure 28 In this window you can not only view the ellipsoid and transformation parameters of the datums selectable from the Current Datum list box but also edit the transformation parameters for USER and P90 In addition you can edit the ellipsoid parameters of USER in this window AE Datum Parameters xj Transformation parameters Reference Datum pa Current D atum Translation de JUL rn Translation dy yt UUUL m Translation dd JULIOL rn Reference Ellipsoid parameters Ellipsoid ID we 638137 DO00 Rotation Aa Rotation Ay m Major semi asis Pola Ass Inverse flattening Seales Ok Cancel Refresh Apply Figure 28 lt DATUM ID gt Datum Parameters window Positioning System e Select the checkboxes GPS and GLONASS if you want the corresponding satel lite constellations to be used in position computation These checkmarks are asso ciated with the receiver parameter par pos sys Note however that the selected satellite constellation will indeed be used in posi tion computation only if the corresponding Satellites to use checkbox from the Satellites management panel is selected as well Measurements Used e This radio button group shows what code measurements will be used to compute the receiver s standalone position The corresponding receiver p
114. v vw MR Figure 54 Satellites window Each concentric circle represents the elevation angle above the horizon The outermost circle corresponds to 0 degrees above the horizon The center of the sky plot represents 90 degrees above the horizon The dotted circle shows the elevation mask angle In the figure above the 68 mask angle eguals 5 degrees The user can adjust the mask angle through the Elevation MaskForm window which appears immediately after pressing the Elevation mask button Also the user can see four DOP characteristics specifically e GDOP Geometric 3 position coordinates plus clock offset in the solution e PDOP Position 3 coordinates e HDOP Horizontal 2 horizontal coordinates e VDOP Vertical height only A dynamically changing histogram shows the signal to noise ratio C NO in the C A channel Each vertical bar has a unique color and designates a satellite s PRN GPS and WAAS or slot number GLONASS Note that GPS WAAS and GLONASS satellites are marked with G and R respectively By selecting or clearing the checkbox for each SV the user can specify which of the GPS GLONASS and WAAS satellites are enabled disabled for position computation To view the basic tracking information about a satellite move the cursor onto the desired satellite s icon and right click on it Holding down the right button you will see a pop up window as shown in Figure 55 The values in the
115. vertical velocity RMS error e total velocity RMS error the square root of the trace of the ve ocity error variance covariance matrix 67 e the number of the position estimates for each of the four solution types in and their total as well e the maximum and average Fasting to Target and Northing to Target in the local system with the origin at the receiver Use the Clear all points button to erase all plotted points in the window When you press the button Fit all points PC CDU will automatically change the scale of the Scatter plot allowing you to view all positions starting from the time PC CDU established the connection to the receiver After you press Target to average PC CDU sets the target position equal to the average receiver s position If you close this window the positions displayed in the Scatter plot and information in the status bar will not be discarded unless you disconnect the receiver thus when you reopen the window later it will include both the current position information and data beginning from the time you turned on PC CDU 4 2 13 Satellites window To go to the Satellites window select the Satellites item from the Plots menu The Satellites window shows graphic representation of the satellite positions in the sky Figure 54 Satellites Ma Ea GOOF 1 899 FEOF 1 565 HOOP 0 738 DOP 1 346 13 10 3 Elevation mask Clear data B2 G3 G9 G11 average nancy y np ji v
116. ween 2 and 3 Care should be taken when using 2 order PLL because this can adversely af 56 El fect satellite signal tracking in some cases The edit box relates with the receiver pa rameter par raw pll order The Guided loop bandwidth edit box governs all of the guided loops but the C A DLLs Here you can enter values between 0 1 Hz and 10 Hz The edit box is associated with the re ceiver parameter par raw gdl band The C A code guided loop bandwidth edit box specifies the bandwidth of the re ceiver s C A group delay lock loop In this box you can enter the values between 0 1 Hz and 50 Hz The edit box relates to the receiver parameter par raw cagdl band With the Enable Adaptive Guided Loops checkbox you enable disable the use of adaptive guided loops If you select the checkbox the receiver will adjust the guided loops bandwidths depending on the actual strengths of the signals tracked The weaker the signals the narrower the bandwidths The checkbox corresponds to the receiver parameter Ipar raw gdl adapt With the Enable P L1 and P L2 tracking checkbox you can adjust tracking settings for the receiver If you have either a single frequency receiver or L1 only antenna it is recom mended to disable tracking of the P L1 and P L2 signals The checkbox is associated with the recelver parameter par lock pcode The checkbox Enable Co Op tracking is associated with the receiver parameter Ipar rawiclp loops Select the

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