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Originally Posted by TexanAvenger
I've always been kind of curious about these stations. Maybe the most interesting thing to me is the fact that whoever is doing them isn't hiding the fact. They're punctual, follow a set pattern, and use the same frequencies over and over again.
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To communicate with a spy in the field, they'd pretty much have to be. Otherwise, you'd have to get a message to the spy first, to tell him when and where to listen, which would defeat the whole purpose.
I'm not really up on cryptography, but I believe I read about a way to generate a single-use code that is effectively uncrackable for all practical purposes. On top of that, they probably weave some "noise" into the codes, making for an extremely secure method of communication.
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A friend of mine once suggested that the Papa November, and other, stations are just automatically run now, and mean nothing to anybody. That, sometime after the switch in 1988, they became obsolete and nobody bothered to stop them.
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Or perhaps they keep the channels open, broadcasting "noise", in case they're ever needed again. A sudden reactivation of the broadcasts would tip an enemy off. If they've been broadcasting all along, no one on the outside would be able to tell the difference.