Fugro 8200HP - GLL - Geographic Position - Latitude;Longitude; GRS - GPS Range Residuals; Table 12: Description of the GLL Message; Table 13: Description of the GRS Message

OmniSTAR 8200HP User Manual
Issue 1.07, 10/2008
60
GLL - Geographic Position – Latitude/Longitude
The GLL message contains the latitude and longitude of the present position,
the time of the position fix and its status.
$GPGLL,ddmm.mmmmmmm,D,dddmm.mmmmmmm,D,hhmmss.ss,A*XX
Field Number Description
1,2 Latitude, N (North) or S (South).
3,4 Longitude, E (East) or W (West).
5 UTC of Position.
6 Status: A = Valid, V = Invalid.
Table 12: Description of the GLL message.
GRS – GPS Range Residuals
The GRS message is used to support the Receiver Autonomous Integrity
Monitoring (RAIM).
$GPGRS,hhmmss.ss,R,r.r,r.r,r.r,r.r,r.r,r.r,r.r,r.r,r.r,r.r,r.r,r.r,*XX
Field Number Description
1 UTC time of GGA position fix
2 Residuals
0: Residuals used to calculate position given in
the matching GGA line
1: Residuals recomputed after the GGA position
was computed
3 to 14 Range residuals for satellites used in the
navigation solution, in meters
Table 13: Description of the GRS message.
NOTES:
 Because the contents of this NMEA message do not change significantly
during a 1-second interval, the receiver outputs this message at a
maximum rate of 1 Hz.
 When running in HP or XP mode this NMEA message is not valid.