I wonder if I could use the RF exposure calculator to sue the US Navy for
making me work on the flight deck of aircraft carriers that were running
some 2 megawatts RF power with their search radar? They did tell us,
however, that the high power RF field could make one sterile, but they
forgot to tell us that it takes less RF exposure to kill you than it does to
make you sterile. :>)
Tommy
W4BQF
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
On Behalf Of Stuart Rohre
Sent: Friday, March 25, 2005 2:40 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] using amp to load rain gutter
Google "RF Exposure calculator" and you will get the University of TX
Amateur Radio Club's on line easy fill in the blank calculator for any RF
exposure.
Plugging in typical values for 500 watts, and assuming various gains for the
antenna shows a dipole equivalent rain gutter would not be in compliance for
either controlled or uncontrolled exposure. You would have to keep people a
28 feet from the gutter to avoid too much RF exposure. Now, the problem is
greater at high frequency, and that case was run for 10m.
But, it points up the risk of having something like a vertical downspout
that is usually not protected from humans, being your antenna, at any medium
power.
-Stuart
K5KVH
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