Re: DPA mapped to spectral analysis

[Matt Crawford]

> A while back someone on cypherpunks posted a program that would let you
> hear FSK modulation on a normal radio when the program
> was run, by modulating PCI traffic. 

Shoot, I remember the operators of the CDC 3150 at the local state
college doing this around 1973 -- they set a radio on top of the
console and ran a program that fiddled accumulator bits to play
tunes.
                                Matt