NMEA-0183 message: GLL

Position data: position fix, time of position fix, and status

An example of the GLL message string is:


GLL message fields

Field Meaning
0 Message ID $GPGLL
1 Latitude in dd mm,mmmm format (0-7 decimal places)
2 Direction of latitude N: North S: South
3 Longitude in ddd mm,mmmm format (0-7 decimal places)
4 Direction of longitude E: East W: West
5 UTC of position in hhmmss.ss format
6 Status indicator:

A: Data valid
V: Data not valid

This value is set to V (Data not valid) for all Mode Indicator values except A (Autonomous) and D (Differential)

7 The checksum data, always begins with *

Mode indicator:
A: Autonomous mode
D: Differential mode
E: Estimated (dead reckoning) mode
M: Manual input mode
S: Simulator mode
N: Data not valid