Point-to-Point/SIK Firmware User Manual
4.2 AT Commands
The AT command mode can be entered by using the ‘+++’, without quotes, sequence in a serial
terminal connected to the radio.
You should allow at least one second after the sending of data before entering the sequence to
ensure that the modem will correctly enter command mode.
If successful, an ‘OK’ prompt will be displayed on the screen and the modem will stop displaying
incoming data from the remote modem. In command mode, you can use the AT commands to
control the local modem settings or the RT commands to control the remote modem.
To set certain registers to a value, follow these steps:
1. Use the command ATSn=X where n is the register number and X is the value to assign.
2. Use the command AT&W to save the new values to the x and ux series modem.
3. Use the command ATZ to software reboot the modem, required for some changes to take effect.
By replacing A with R the settings of the remote modem can be changed. It is recommended that
changes to remote settings be made first as some of the changes can unlink the modems after being
applied.
Shows the firmware version and country code
Shows the firmware version number
Shows all user settable EEPROM parameters and their values
Shows all user settable EEPROM parameters and their possible range
Displays TDM timing report
Displays RSSI signal report
Display Device 64-bit unique ID
Calibration validation test
Displays radio 'S' parameter number ‘n’
Sets radio 'S' parameter number ‘n’ to ‘X’
Displays radio 'R' parameter number ‘n’
Sets radio 'R' parameter number ‘n’ to ‘X’
Resets all parameters to factory defaults
Writes current parameters to EEPROM
Reset and enter boot mode
Change TDM phase (debug only)
Record default PPM stream for PPM output (vehicle side)
Disables debugging report
Enables RSSI debugging report
Enables TDM debugging report
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