HFU HF Underground
General Category => General Radio Discussion => Topic started by: ChrisSmolinski on January 15, 2014, 1250 UTC
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The technology, which the agency has used since at least 2008, relies on a covert channel of radio waves that can be transmitted from tiny circuit boards and USB cards inserted surreptitiously into the computers. In some cases, they are sent to a briefcase-size relay station that intelligence agencies can set up miles away from the target....
Full article: http://www.nytimes.com/2014/01/15/us/nsa-effort-pries-open-computers-not-connected-to-internet.html (http://www.nytimes.com/2014/01/15/us/nsa-effort-pries-open-computers-not-connected-to-internet.html)
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I'd be interested in what frequencies these little devices use.... :-)
Must be in the microwave region because of the size... hmmmmm...
73 Vince
KA1IIC