# FM APRS extension

This extensions allows to specify some attributes for FM APRS settings specific to radios running the OpenGD77 firmware.

##

    positioning:
      - aprs:
        name: APRS
        # ...
        opengd77:
          transmitQSY: false
          baud: 1200

The OpenGD77 extension is a mapping named opengd77. It contains the device specific settings for that APRS system.

For now, there are only two attributes affecting the behavior of the APRS system.

## APRS extension fields

transmitQSY

- If enabled, OpenGD77 will append the current frequency to the APRS message.

- Sets the baud rate for the ARPS transmission. This can either be 1200 or 300. The former is the default and used on VHF. The latter is used on HF.