What happens if the Beverage happens to be parallel to a steel fence?
Perhaps 10-20' away.
John KK9A
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Beverage Antenna
From: "Joe Subich, W4TV" <lists@subich.com>
Date: Tue, 03 Feb 2015 08:55:15 -0500
Anecdotal reports over the years (~ 30?) of Beverage antennas over
an existing conductive wire/fence indicates that performance lags
that over moderate earth. The degradation comes from two apparent
modes: 1) the (typically larger) fence picks up noise and couples it
to the Beverage and 2) the the conductive nature of the fence upsets
the velocity factor (wave tilt) resulting in a shorter effective
length with lower signal strengths and broader patterns.
73,
... Joe, W4TV
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