I need two communication channels: one for communication with the ground station (sending flight missions) and the second for RC (just in case communication with the ground station breaks down, then I can land the drone in manual mode).
I have Holybro P900 telemetry (902-928 MHz) and ELRS module (868MHz). How bad is the idea of putting these two systems on a drone?
I’m not good at this, but it confuses me that the frequency ranges are very close to each other. I used to use 2.4 for the remote control, but it worked lousy