How to adjust VTX power and channels using a flight controller?

1.Wiring connection

Please connect the IRC port of the VTX to any available UART Tx pad on the flight controller.

2. Setting

Please connect the flight controller to Betaflight Configurator.

Please enable the IRC Tramp option for the UART port connected to IRC Tramp (as shown in the diagram above, IRC is connected to the T1 pad, so you need to enable the IRC Tramp option for UART1).

Please open the VTX page and select "Load from File" (TX800 VTX table has been provided as an attachment).

Afterwards, you can change the power and channel settings of the VTX in the VTX page of Betaflight.