Telit Wireless Solutions ME910C1 Series Application Note

LE910Cx/ME910C1/ML856C1/NE910C1 A-GPS Application Note
80529NT11738A Rev. 3 Page 10 of 22 2021-09-27
Not Subject to NDA
3. GNSS SOLUTION
Standalone GNSS
Standalone (or autonomous) GNSS mode is a feature that allows the GNSS receiver
installed on the cellular module to perform First Fixing without the use of network data.
The GNSS receiver estimates position directly from satellites (GPS, GLONASS, and so on)
in line of sight.
To set up the GNSS receiver in standalone mode, follow the steps outlined below.
Although modern cellular modules integrate a GNSS receiver rather than a GPS receiver,
the AT commands still refer to GPS for legacy reasons.
1. To start from a known GNSS setting, switch on/off the module and restore the
default GNSS parameters.
AT$GPSRST
OK
2. Delete the GPS information stored in NVM. It is the history buffer interfacing the
GPS receiver to the module.
AT$GPSNVRAM=15,0
OK
Note: This step is optional and should be performed only if the buffer
needs to be cleaned.
3. Verify that no GNSS information is available after history buffer cleaning.
AT$GPSACP
$GPSACP
OK
4. Start the GNSS receiver in standalone mode.
AT$GPSP=1
OK
5. To enable unsolicited messages of GNSS data in NMEA format, refer to [2]. In this
example, only RMC sentence is enabled:
AT$GPSNMUN=3,0,0,0,0,1,0

Telit Wireless Solutions ME910C1 Series Specifications

General

Brand	Telit Wireless Solutions
Model	ME910C1 Series
Category	Wireless modules
Language	English