User guide

Part 6 – Commands for GPS-Enabled Devices Chapter 16 – Commands for GPS-Enabled Devices
Universal IP AT Commands Reference Guide (Document S000457H) 94
GLL – Latitude/Longitude
Latitude and longitude of current position, time, and status.
Structure:
$GPGLL,ddmm.mmmm,a,dddmm.mmmm,a,hhmmss.sss,A,a*hh<CR><LF>
1 2 3 4 5 6 7 8
Example:
$GPGLL,2447.0944,N,12100.5213,E,112609.932,A,A*57<CR><LF>
Field Name Example Description
1 Latitude 2447.0949 Latitude in ddmm.mmmm format
Leading zeros transmitted
2 N/S Indicator N Latitude hemisphere indicator
‘N’ = North
‘S’ = South
3 Longitude 12100.5223 Longitude in dddmm.mmmm format
Leading zeros transmitted
4 E/W Indicator E Longitude hemisphere indicator
'E' = East
'W' = West
5 UTC Time 112609.932 UTC Time UTC time in hhmmss.sss format
(000000.000 ~ 235959.999)
6 Status A Status, ‘A’ = Data valid, ‘V’ = Data not valid
7 Mode Indicator A Mode indicator
‘N’ = Data not valid
‘A’ = Autonomous mode
‘D’ = Differential mode
‘E’ = Estimated (dead reckoning) mode
‘M’ = Manual input mode
‘S’ = Simulator mode
8 Checksum 57
GSA – GNSS DOP and Active Satellites
GPS receiver operating mode, satellites used in the navigation solution reported by the GGA or
GNS sentence and DOP values.
Structure:
$GPGSA,A,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF>
1 2 3 3 3 3 3 3 3 3 3 3 3 3 4 5 6 7
Example:
$GPGSA,A,3,05,12,21,22,30,09,18,06,14,01,31,,1.2,0.8,0.9*36<CR><LF>
Field Name Example Description
1 Mode A Mode
‘M’ = Manual, forced to operate in 2D or 3D mode
‘A’ = Automatic, allowed to automatically switch 2D/3D
2 Mode 3 Fix type
1 = Fix not available
2 = 2D
3 = 3D
3 Satellite used
1~12
05,12,21,22,
30,09,18,06,
14,01,31,,
Satellite ID number, 01 to 32, of satellite used in
solution, up to 12 transmitted
4 PDOP 1.2 Position dilution of precision (00.0 to 99.9)
5 HDOP 0.8 Horizontal dilution of precision (00.0 to 99.9)
6 VDOP 0.9 Vertical dilution of precision (00.0 to 99.9)
7 Checksum 36