Tempest for Eliza

Tempest is a US government regulation on restriction of EM radiation from electronic equipment. Amusing enough, the NSA has been looking into ways of eavesdropping on people via the EM from their monitors and computers for years. Tempest for Eliza is a quick little program that shows how an unique image displayed on a monitor will broadcast a tone that can be picked up in the shortwave radio range.
This program probably works best with a CRT monitor. Linux only under GPL.
One of those scary but cool things. And no flat panel monitors don’t generate any less radiation. Your DVI cable is the radiator.
Hackaday < TempestforEliza