The HIGHER the beam is on the tower, the more top loading it (the same size
beam) will provide.
Chuck W5PR
----- Original Message -----
From: "Earl W Cunningham" <k6se@juno.com>
To: <Cqtestk4xs@aol.com>; <mike.harris@horizon.co.fk>;
<topband@contesting.com>
Sent: Tuesday, June 08, 2004 3:46 PM
Subject: Re: Topband: Tophat? Does it have to be at the top?
> Bill, K4XS wrote:
>
> "I have several 200-foot towers with lots of HF stacks. I asked that
> question about a year ago when I was considering using them as verticals.
> Almost unanimously, the replies were that it would not be an effective
> way to go. The general consensus was that the first big antenna the
> tower saw, "would be the end of the line" as far as loading went."
> ==========
> I also once thought that the bottom beam of a stack was the only one that
> was effective in top loading a shunt-fed tower. I changed my opinion
> after modeling numerous shunt-fed towers and found that all beams in the
> stack make a significant difference in the amount of top loading effect,
> not just the lowest one.
>
> 73, de Earl, K6SE
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