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Re: [TowerTalk] Top Hat Vertical

To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Top Hat Vertical
From: "Ed Sawyer" <sawyered@earthlink.net>
Reply-to: sawyered@earthlink.net
Date: Tue, 30 Jun 2015 21:32:12 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
 

?Same here. My T vertical for 160 is 100 ft vertical and 82 ft horizontal.
That makes the antenna resonant below the band, with a feedpoint Z of 50
ohms plus some inductive reactance on 160M. I add series C to tune out the
L. The same idea will certainly work on 80M.?

 

I believe that this antenna is functioning as a 3/8 wave vertical.  Which is
nice, but not necessary for good performance.

 

I have a 70 ft high vertical portion with a total hat of about 45 ft (22.5
ft x 2).  It resonates at 1.84Mhz with 20 Ohm impedance.  It is fed against
a ground rod and 45 radials ? mostly ¼ long.

 

Works quite well.

 

Ed

 

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