Originally Posted by
czarnajama
That would involve jamming all sorts of other devices in the area, because modern RC systems use spread spectrum (typically at 2.4 GHz, at lower frequencies for longer ranges up to 100 km). What is needed is an inexpensive transponder (e.g. uAvionix Ping200S ADS-B/Mode S Transponder) which all aircraft and secondary radars within some decent distance can pick up, just as AIS does for surface vessels. Of course, that doesn't in any way justify flying drones near airports, but this sort of technology should resolve the problems of flying remotely piloted aircraft in all appropriate airspace. The technology for UAVs is remarkably powerful and inexpensive, giving small electric craft an operational radius of about 100km, with full video ("first person view") and flight instrument data seen by the pilot.
Really, 100Km & inexpensive?