Specifications

ISU AT Command Reference Phase VII AT Commands

Iridium Proprietary Version 2.45

20 June 2011 104

11.21 +GPSSTA – Configure GPS status (9522B)

This command is added in 9522B to control the RF amplifiers which provide the GPS feed-through signal.

If this signal is not required, then these amplifiers can be disabled to reduce the power consumption of the

9522B. This command is not available on the 9555.

The current status is stored in S-register 121.This setting can be made persistent by saving it to one of the

profiles (AT&Wn) and loading this profile on power-up (AT&Yn).

Exec Command: +GPSSTA=<mode>

where:

<mode>:

0 disable GPS RF path

1 enable GPS RF path

Query Command: +GPSSTA?

This command returns the current GPS RF path 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

11.22 +GPSSTA – Configure GPS status (9555A)

This command is added in 9555A to enable and disable the GPS receiver when the handset is idle. When

the handset is in call, then the GPS receiver is disabled to avoid interference between handset’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

9555A transceiver board. In this case all forms of the +GPSSTA command will return an error.