2050
User Guide
Appendix F:
How to Log RAW GPS ‘binary’ data from a C-Nav[2050] unit
C-Nav RAW GPS 'binary' data can easily be recorded using the STARUTIL application on
the windows computer that is connected to the 'CONTROL PORT' of the C-Nav[2050] unit.
How to record RAW GPS 'binary' data from the C-Nav[2050] using a MS-Windows computer
system:-
1) Start STARUTIL (Ver: 2.6 or higher) and open the PC Communications port to receive
the RAW GPS 'binary' data from the ‘Control Port’ (Com2) of the 2050 unit.
2) Ensure that the following NCT 'binary' messages (minimum) are enabled for output from
the Control Port (On Change):-
0x44 - Almanac
0x81 - Ephemeris
0x86 - Channel Status
0xA0 - Alerts
0xB0 - Raw Measurements
0xB1 - Solution
0xB2 - Satellite Selection
0xE1 - Failure Details
and
0x5F
\
0x60 -> LBM DSP Status <- from the LBM menu
0xD3
/
3) Start recording, with the STARUTIL application, the RAW 'binary' data to a log file and
directory and enable the logging SCHEDULE. Use a logging file name of
'<serialnumber>.dat'
4) When running the STARUTIL program continually in this scheduled logging mode then
every day a new data file will be created in the selected logging directory 'folder'.
5) Every few days you can 'purge' any old unwanted data logging files to save disk space.
The RAW 'binary' data will be recorded in 24hour data files that can be saved to a CDROM
(or WINZIP'd and place on the C-Nav FTP site) and sent to us for analysis. Collecting these
data files will allow us to analyze and see exactly what the performance of the C-Nav[2050]
GPS system.
Note: See the C-Nav FAQ for instructions on how to upload data to the C-Nav FTP site at
http://www.cctechnol.com/cnav_faq.php
.
How do I send recorded data files to C-Nav Support for help and analysis?
2002-09-04
-
RAW GPS 'binary' data files (recorded using STARUTIL) or C-Nav NMEA
ASCII data files (with ALL C-Nav NMEA messages enabled) can be sent to C-Nav Support to
help resolve . . .
C-53
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