Specifications

UC864-E/G AT Commands Reference Guide
80304ST10041a Rev. 3 - 18/07/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 240 of 259
3.5.7.7.3 Unsolicited NMEA Data Configuration - $GPSNMUN
$GPSNMUN - Unsolicited NMEA Data Configuration
AT$GPSNMUN=
<enable>
[,<GGA>,<GLL>,
<GSA>,<GSV>,
<RMC>,<VTG >]
Set command permits to activate an Unsolicited streaming of GPS data (in
NMEA format) through the standard GSM serial port and defines which
NMEA sentences will be available
Parameters:
<enable>
0 - NMEA data stream de-activated (default)
1 - NMEA data stream activated with the following unsolicited response
syntax:
$GPSNMUN:<CR><NMEA SENTENCE><CR>
2 - NMEA data stream activated with the following unsolicited response
syntax:
<NMEA SENTENCE><CR>
3 - dedicated NMEA data stream; it is not possible to send AT commands;
with the escape sequence ‘+++’ the user can return to command mode
<GGA> - Global Positioning System Fix Data
0 - disable (default)
1 - enable
<GLL> - Geographical Position - Latitude/Longitude
0 - disable (default)
1 - enable
<GSA> - GPS DOP and Active Satellites
0 - disable (default)
1 - enable
<GSV> - GPS Satellites in View
0 - disable (default)
1 - enable
<RMC> - recommended Minimum Specific GPS Data
0 - disable (default)
1 - enable
<VTG> - Course Over Ground and Ground Speed
0 - disable (default)
1 - enable
AT$GPSNMUN? Read command returns whether the unsolicited GPS NMEA data streaming
is currently enabled or not, along with the NMEA sentences availability
status, in the format:
$GPSNMUN:<enable>,<GGA>,<GLL>,<GSA>,<GSV>,<RMC>,<VTG >
AT$GPSNMUN=? Test command returns the supported range of values for parameters
<enable>, <GGA>, <GLL>, <GSA>, <GSV>, <RMC>, <VTG>
Example AT$GPSNMUN=1,0,0,1,0,0,0
OK
These sets the GSA as available sentence in the
unsolicited message
AT$GPSNMUN=0
OK
Turn-off the unsolicited mode
AT$GPSNMUN?