RC Transmitter:

The RC transmitter is home made. I have used a low cost RC transmitter housing. I have changed all the electronics! Why? I wanted to have only ONE radio link for all the usages: manual control (via joysticks), high level orders transition from the PC, parameters tuning via the PC, live telemetry, upload logs upload to the PC. Lots of amateur drones have several radio links, but I don’t like it. I think that only one radio link is the key for keeping electronic compact and simple. I don't have to deal with several antennas on the UAV.

Schematic:

Pictures: