NODE 99e646a5Re: Encrypted Cordless phones
George A. Gleason <gg@well.sf.ca.us>Wed, 14 Apr 93 03:20:16 PDT
And also.... Radio Shack just entered the market with a cordless which uses
frequency inversion. That's analog... Probably can be broken in less than
a minute, even by amateurs who know how to solder. About 1986 or so, a
certain state agency ordered some expensive walkie-talkies which were
supposed to be secure against protesters with scanners. Guess what? Analog
frequency inversion.
And in fact, with a little practice, you can listen to inverted speech
directly and make sense of it.