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Re: Tempest Info

To: [email protected] (Julian Assange)
Subject: Re: Tempest Info
From: SINCLAIR DOUGLAS N <[email protected]>
Date: Wed, 29 May 1996 09:27:32 -0400
Cc: [email protected]
In-Reply-To: <[email protected]> from "Julian Assange" at May 28, 96 07:56:03 pm
Sender: [email protected]

> 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.

References:
- Re: Tempest Info
  - From: Julian Assange <[email protected]>

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