Trimble Outdoors SPSX51 - Manual (Page 133)

SPSx51 Modular GPS Receivers User Guide 131
NMEA-0183 Output A
RMC Position, Velocity, and Time
The RMC string is shown below, and Table A.12 describes the message fields.
$GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4,230394,003.1,W*6A
Table A.12 GPRMC message fields
Field Meaning
0 Message ID $GPRMC
1 UTC of position fix
2 Status A=active or V=void
3 Latitude
4 Longitude
5 Speed over the ground in knots
6 Track angle in degrees (True)
7 Date
8 Magnetic variation in degrees
9 The checksum data, always begins with *