12713020-003-2 Revision F.01 – January 2007 SSU-2000 Technical Reference 67
Chapter 2 TL1 Reference
Retrieve GPS Data
Retrieve GPS Data
This command returns the current tracking data for the specified GPS input. If the
input specified is not a GPS Input module, the DENY response is returned.
Syntax
RTRV-DATA-GPS:[tid]:[aid]:ctag;
Response Format
A valid response message contains up to eight lines. Each line displays information
for one of the satellites currently being tracked. The format is:
^^^"aid:chan,sv#,snr,status"<cr lf>
...
^^^"aid:PPSSIGMA:pps_sigma"<cr lf>
^^^"aid:T3SIGMA:t3sigma_threshold"<cr lf>
where:
aid = module access identifier
chan indicates the channel number used to track the corresponding sv
sv# = satellite vehicle number
snr = signal-to-noise ratio or signal strength
status = the current tracking status [SRC | COD | FRQ | TIM | EPH | OK]
where: SRC = searching, COD = code locking, FRQ = frequency locking, TIM =
setting time, EPH = retrieving Ephemeris data, OK = satellite being used in the
timing solution
pps_sigma = current 1PPS sigma value
t3sigma_threshold = the current 3-sigma threshold
Parameter Value Description
[aid]
S1A3|S1A5
Retrieves GPS data from the specified GPS Input module.
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