
AL3A-RM User Guide Version B
Document Number: 451-93156-002B
119 of 172
129
Success Ack
253
No Transaction Id
254
CM Internal Error
255
RL Timeout
Values up to 127 are defined by GSM for SMS-PP Relay Layer messages and values 128
and above are internal codes introduced by Iridium.
B.117
+GPSSTA
–
C
ONFIGURE
GPS
S
TATUS
This command enables and disables the GPS receiver when the module is idle. When
the module is in a call, then the GPS receiver is disabled to avoid interference between
the module’s Iridium band transmitter and the GPS band receiver.
Note:
the GPS receiver (and associated circuitry) is optional and is not fitted to some
revisions of the A3LA-RM RF board. In this case all forms of the +GPSSTA command
will return an error.
Exec Command:
+GPSSTA=<mode>
where:
<mode>:
0
disable GPS receiver
1
enable GPS receiver
Query Command:
+GPSSTA?
This command returns the current GPS receiver state. 1 = enabled, 0 = disabled.
Test Command:
+GPSSTA=?
Test command returns a list of valid values. Response is in the form:
+GPSSTA: list of supported modes
B.118
+PA
–
GPS:
L
IST OF
NMEA
M
ESSAGE
F
ORMATS
Exec Command: +PA=<n>
No action, compatibility only. Only allows a value of 1 for <n>. The NMEA string
returned does not contain any GPS information.