Trimble Outdoors 5700/5800 User Manual
Page 175
5700/5800 GPS Receiver User Guide 1 63
NMEA-0183 Output A
5700/5800 GPS Receiver Oper
ation
GST
Position Error Statistics
An example of the GST message string is shown below. Table A.5
describes the message fields.
$GPGST,172814.0,0.006,0.023,0.020,273.6,
0.023,0.020,0.031*6A
Table A.5
GST message fields
Field
Meaning
1
UTC of position fix
2
RMS value of the pseudorange residuals (includes carrier phase
residuals during periods of RTK(float) and RTK(fixed)
processing)
3
Error ellipse semi-major axis 1 sigma error, in meters
4
Error ellipse semi-minor axis 1 sigma error, in meters
5
Error ellipse orientation, degrees from true north
6
Latitude 1 sigma error, in meters
7
Longitude 1 sigma error, in meters
8
Height 1 sigma error, in meters