1996-05-29 - Re: Tempest Info

Header Data

From: SINCLAIR DOUGLAS N <sinclai@ecf.toronto.edu>
To: proff@suburbia.net (Julian Assange)
Message Hash: 5cc602959eb1bf4a96f08c047fa40202dc99b3b8c2621c43dd9315e5e5e81a38
Message ID: <96May29.092735edt.10690@cannon.ecf.toronto.edu>
Reply To: <199605282356.JAA29834@suburbia.net>
UTC Datetime: 1996-05-29 18:06:20 UTC
Raw Date: Thu, 30 May 1996 02:06:20 +0800

Raw message

From: SINCLAIR  DOUGLAS N <sinclai@ecf.toronto.edu>
Date: Thu, 30 May 1996 02:06:20 +0800
To: proff@suburbia.net (Julian Assange)
Subject: Re: Tempest Info
In-Reply-To: <199605282356.JAA29834@suburbia.net>
Message-ID: <96May29.092735edt.10690@cannon.ecf.toronto.edu>
MIME-Version: 1.0
Content-Type: text/plain


> 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.

Thread

• Return to May 1996

• Return to “Andrew Loewenstern <andrew_loewenstern@il.us.swissbank.com>”
• Return to “Bill Stewart <stewarts@ix.netcom.com>”
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• Return to “Lyal Collins <lyalc@ozemail.com.au>”

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• 1996-05-28 (Tue, 28 May 1996 19:35:54 +0800) - Re: Tempest Info - Bill Stewart <stewarts@ix.netcom.com>
  • 1996-05-29 (Wed, 29 May 1996 09:04:59 +0800) - Re: Tempest Info - Andrew Loewenstern <andrew_loewenstern@il.us.swissbank.com>
    • 1996-05-29 (Wed, 29 May 1996 12:44:54 +0800) - Re: Tempest Info - Julian Assange <proff@suburbia.net>
      • 1996-05-29 (Wed, 29 May 1996 19:54:22 +0800) - Re: Tempest Info - Lyal Collins <lyalc@ozemail.com.au>
      • 1996-05-29 (Thu, 30 May 1996 02:06:20 +0800) - Re: Tempest Info - SINCLAIR DOUGLAS N <sinclai@ecf.toronto.edu>