From: Michael S. Lorrey (retroman@turbont.net)
Date: Sun May 07 2000 - 01:35:04 MDT
Billy Brown wrote:
>
> Michael S. Lorrey wrote:
> > This data deals with air broadcast radiofrequencies. One area that is
> > not public knowledge, or what I haven't seen much of to date, are
> > signals transmitted in the sinewave harmonic patterns through the power
> > lines. These are quite present, and they can be amplified by a
> > surveillance system through use of a few simple components to boost the
> > harmonic output of the surveilled facility.
>
> Interesting idea. I don't think you could get anything useful about the
> operation of the electronic components (mostly because CPU & motherboard
> architectures come and go in less time than it takes for DOD to procure a
> piece of equipment), but that darned keyboard interface might stand out
> enough to be a viable target.
>
> Or maybe not - there is an awful lot of interference between that signal and
> an external power line. It would probably take some serious hands-on work to
> figure out if it could actually be done.
Funny thing is that some of the components that make your newer machines
"Green" are those that can be perverted to work with surveillance
systems to monitor harmonic feedback....
Mike Lorrey
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