# Channel extension

This extension allows to specify some channel settings specific for devices running the OpenGD77 firmware. This extension can be added to any channel, analog and digital. For now, this extension only allows to specify the power for the channel in more detail.

##

    channels:
      - digital:
          id: ch1
          name: Example channel
          # all the other channel settings
          openGD77:
            scanZoneSkip: false
            scanAllSkip: false
            beep: true
            powerSave: true
            location: JO62jl
            talkerAliasTS1: APRS
            talkerAliasTS2: Both

The OpenGD77 channel extension is a mapping named openGD77. It contains the device specific settings for that channel.

For now, there are only few attributes specifying scan behavior for the channel.

## Channel extension fields

scanZoneSkip scanAllSkip

- In contrast to the original GD-77 firmware, OpenGD77 does not implement scanning by scan lists. Instead, either all channels defined in the radio or all channels within the current zone can be scanned. To exclude some channels from these scans, the scanZoneSkip and scanAllSkip flags can be used. When enabled, the channel will be excluded from the respective scan.

beep

- If enabled (default), the channel beeps are played.

powerSave

- Enables the power save feature for this channel (default).

location

- Allows to specify a fixed location to be used for this channel and the associated APRS system.

talkerAliasTS1 talkerAliasTS2

- Specifies what to be send as the talker alias, depending on the current timeslot. This must be one of None, APRS, Text or Both.