The Draganfly cam has produced better results than I got with my setup. The receiver antenna is EVERYTHING on a 2.4 ghz unit. Here's a site that shows how to make a cheap high-gain antenna. http://www.cyber-flyer.com go to the video and telemetry downlink. I would like to capture some chase scenes, and the ONLY way to do it right is to at least use the live video image to fly the plane behind another model. There's some pretty cool telemetry devices out there that will plug in between the camera and the transmitter and overlay 5 or 6 "gauges" like airspeed, altitude, battery voltage, heading, engine RPM, etc. These numbers are visible in the corners of the video display. There's one that interfaces to an inexpensive GPS too, although I don't yet see a need for it. It is very possible to fly even a 3D plane just with the video camera's perspective, there's a guy in France that has done it with a Pizazz. The guy with the Pizazz uses a visor and flies only by the video. He must have been having a lot of fun because only recently did he even tap into the visor and start recording the flights.
Take a look at these systems too, I found these when looking for systems, but I think I can get my cheap 100mw system to work for video at the model field. http://www.blackwidowav.com/productssystems.html
-Tom