Grumpy Old Geeks Topics Air-gap data transmission Topic Air-gap data transmission 2 mentions in 1 episode The hosts discuss research that uses a computer's video output to transmit data as an FM signal. Mentions 83: The Grump Awakens Nov 7, 2014 46:19 researchers bridge air gap by turning monitors into FM radio 46:38 turn your computer's video card into an FM transmitter