Tempest Info
SINCLAIR DOUGLAS N
sinclai at ecf.toronto.edu
Wed May 29 11:06:20 PDT 1996
> Water pipes are often form the earth line. If only 60hz (US) can get through
> the power cables then only 60 hz can get into the water pipes (I'll ignore
> re-radiating, because water pipes are the least of your problems there).
The high-frequency harmonics from your computers are probably above the
cutoff frequency of the water-pipes when considered as circular waveguides.
The water filling will act as a dielectric, bringing F0 down. So, it
is conceivable that extremely high frequency radiation (>3 Ghz) could
propagate well in a water pipe.
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