Gpgbs – NavCom LAND-PAK Rev.N User Manual
Page 172

Technical Reference Manual Rev. N
Blk = All;
Blu = IOP w/Internal Radio
;
Red = IOP & LBM
;
Grn = Engine only
170
$GPGBS
This output message is used to support Receiver Autonomous Integrity Monitoring (RAIM), and
is in compliance with NMEA-0183 Standards version 3.0.
Output
Format:
$GPGBS,time,laterr,lonerr,alterr,prn,probability,estimate,bias*checksum
Field# Field
Name
Description
F1
time
UTC time for position fix in hours, minutes, seconds
(hhmmss.ss) (000000.00 to 235959.99)
F2
laterr
Expected error in latitude in meters
F3
lonerr
Expected error in longitude in meters
F4
alterr
Expected error in altitude in meters
F5
Prn
PRN of most likely failed satellite, GPS (01 to 32), WAAS (120-138)
F6
probability
Probability of missed detection for most likely failed satellite
F7
estimate
Estimate of bias in meters on most likely failed satellite
F8
bias
Standard deviation of bias estimate
F9
Checksum
Example: $GPGBS,233618.00,-0.2063,-0.0220,-0.4760,14,0.0001,-2.4018,8.5704*65