GNSS Module Series
GNSS SDK Commands Manual
GNSS_SDK_Commands_Manual Confidential / Released 28 / 28
3.4. GBS Sentence Definition
The GBS sentence definition for $--GBS,hhmmss.ss,x.x,x.x,x.x,xx,x.x,x.x,x.x,x,x*hh<CR><LF> is
illustrated below:
Table 5: GBS Sentence Definition
UTC time of the GGA or GNS fix associated with this sentence.
Expected Error in latitude
Expected Error in longitude
Expected Error in altitude
ID number of most likely failed satellite
Probability of missed detection for most likely failed satellite
Estimate of bias in meters on most likely failed satellite
Standard deviation of bias estimate
GNSS system ID
1 - GPS
2 - GLONASS
3 - Galileo
4 - RESERVED
GNSS signal ID
0 - All channel
1 - G1 C/A
If only GPS, GLONASS, etc. is used for the reported position solution, the talker ID of GBS is GP, GL,
etc., and the errors pertain to the individual system. If satellites from multiple systems are used to obtain
the reported position solution, the talker ID is GN and the errors pertain to the combined solution.
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