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Re: [TowerTalk] Beverage Antenna

To: [email protected]
Subject: Re: [TowerTalk] Beverage Antenna
From: "[email protected]" <[email protected]>
Date: Tue, 3 Feb 2015 09:28:02 -0600
List-post: <[email protected]">mailto:[email protected]>
What happens if the Beverage happens to be parallel to a steel fence? 
Perhaps 10-20' away.

John KK9A


To:     [email protected]
Subject:        Re: [TowerTalk] Beverage Antenna
From:   "Joe Subich, W4TV" <[email protected]>
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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