This is one of the sentences commonly supported by GPS / GNSS receivers.
The GLL sentence includes latitude and longitude, with time of position fix and status.
All of the fields in GLL are also present in RMC.
NMEA 2.3 onwards:
1 2 3 4 5 6 7 8
| | | | | | | |
$--GLL,ddmm.mm,a,dddmm.mm,a,hhmmss.ss,a,m*hh<CR><LF>
Prior to NMEA 2.3:
1 2 3 4 5 6 7
| | | | | | |
$--GLL,ddmm.mm,a,dddmm.mm,a,hhmmss.ss,a*hh<CR><LF>
| # | Field | Format | Example | Description |
|---|---|---|---|---|
| 0 | Sentence ID | string | $GPGLL | Talker ID (GP) + message ID (GLL) |
| 1 | Latitude | ddmm.mmmm | 5321.6802 | Latitude, typically 4 or 5 dp. Leading zeros are always included |
| 2 | NS | character | N | Hemispherical orientation N or S (north or south) |
| 3 | Longitude | dddmm.mmmm | 00630.3371 | Longitude, typically 4 or 5 dp. Leading zeros are always included |
| 4 | EW | character | W | Hemispherical orientation E or W (east or west) |
| 5 | Time | hhmmss.sss | 092751.000 | UTC time, typically 2 or 3 dp. Leading zeros are always included |
| 6 | Status | character | A | Data status; A = active (data valid), V = void (data invalid) |
| 7 | Pos Mode | character | A | Positioning mode indicator (NMEA 2.3 and later) |
| 8 | Checksum | hexadecimal | *7B | Checksum |
Notes:
$GNGLL,4404.14012,N,12118.85993,W,001037.00,A,A*67
$GPGLL,5637.8345,N,01638.4927,W,125901.000,A,A*48