Multi-Tech Systems iCell GPRS (MTSMC-G2-IP Manuale Utente
Part 6 – AT Commands for GPS-Enabled Devices
Chapter 16 – AT Commands for GPS-Enabled Devices
Universal IP AT Commands Reference Guide (Document S000457K)
100
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>
$GPGLL,ddmm.mmmm,a,dddmm.mmmm,a,hhmmss.sss,A,a*hh<CR><LF>
Example:
$GPGLL,2447.0944,N,12100.5213,E,112609.932,A,A*57<CR><LF>
$GPGLL,2447.0944,N,12100.5213,E,112609.932,A,A*57<CR><LF>
Name
Example
Description
Message ID
$GPGLL
GLL Protocol Header
Latitude
2447.0949
Latitude in ddmm.mmmm format
N/S Indicator N
Latitude hemisphere indicator
‘N’ = North
‘S’ = South
‘N’ = North
‘S’ = South
Longitude
12100.5213
Longitude in dddmm.mmmm format
E/W Indicator E
Longitude hemisphere indicator
'E' = East
'W' = West
'E' = East
'W' = West
UTC Time
112609.932
UTC Time in hhmmss.sss format
(000000.000 ~ 235959.999)
(000000.000 ~ 235959.999)
Status
A
Status, ‘A’ = Data valid; ‘V’ = Data not valid
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
‘N’ = Data not valid
‘A’ = Autonomous mode
‘D’ = Differential mode
‘E’ = Estimated (dead reckoning) mode
‘M’ = Manual input mode
‘S’ = Simulator mode
Checksum
*57
<CR><LF>
<CR><LF>
End of message (termination)
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.
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>
$GPGSA,A,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF>
Example:
$GPGSA,A,3,05,12,21,22,30,09,18,06,14,01,31,,1.2,0.8,0.9*36<CR><LF>
$GPGSA,A,3,05,12,21,22,30,09,18,06,14,01,31,,1.2,0.8,0.9*36<CR><LF>
Name
Example
Description
Message ID
$GPGSA
GSA Protocol Header
Mode
A
Mode
‘M’ = Manual, forced to operate in 2D or 3D mode
‘A’ = Automatic, allowed to automatically switch 2D/3D
‘M’ = Manual, forced to operate in 2D or 3D mode
‘A’ = Automatic, allowed to automatically switch 2D/3D
Mode
3
Fix type
1 = Fix not available
2 = 2D
3 = 3D
1 = Fix not available
2 = 2D
3 = 3D
Satellite used 1~12 05,12,21,22,
30,09,18,06,
14,01,31,,
14,01,31,,
Satellite ID number, 01 to 32 of satellite used in solution, up
to 12 transmitted
to 12 transmitted
PDOP
1.2
Position dilution of precision (00.0 to 99.9)
HDOP
0.8
Horizontal dilution of precision (00.0 to 99.9)
VDOP
0.9
Vertical dilution of precision (00.0 to 99.9)
Checksum
*36
<CR><LF>
<CR><LF>
End of message (termination)