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Topband: WIDEBAND NOISE

To: <topband@contesting.com>
Subject: Topband: WIDEBAND NOISE
From: n4zr@contesting.com (Pete Smith)
Date: Tue, 26 Dec 2000 21:19:54 -0500
At 07:14 PM 12/26/00 -0500, BILL MCHUGH wrote:

>Far-fetched as it may sound, the source of the noise may be very
>local...like a piece of consumer equipment.  

For what it's worth, a few years ago a source of terrible square-wave noise
at 3530+/- 15 khz and 3790 +/- 15 khZ turned out to be an ordinary 72 cent
Leviton light switch in my nieghbor's house.  Not a mercury switch either
-- the so-called silent mechanical type.  I stumbled on it quite by
accident after I localized the noise to his house, and was checking every
piece of electronics there when, quite by accident, he turned off the
bathroom light and the noise disappeared.  Turned out the switch only
radiated when the power was off...

My point is, simply, that the source could be something totally unexpected.
 I don't think it's been mentioned yet, but if you can power your RX with a
battery, try turning off each circuit in your own house in turn, just in
case it's really close-by.

73, Pete N4ZR
Happy Holidays!



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