AVS Special Member
Join Date: Mar 2004
Location: Cleveland, Ohio
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Run the camera output into an old VHS recorder, then the channel 2,3 or 4 output into a big VHF antenna, at the far end another big VHF antenna.
Sure it's not technically legal, but just who would you interfere with?
This should work at 20 000 feet ( 4 miles) but not 20 kilometers (12 miles).