You could buy an outboard video camera & transmitter like this, Amazon.com : RunCam Spotter V2 FPV Camera and Transmitter Kit, 5.8G Micro AIO Cam, OSD, Integrated Mic, FOV170 Degree 700TVL, 40CH, 20MW-200MW Adjustable : Electronics
You'd have to wire in power from the drone battery, tho. You...