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Re: [TowerTalk] 80m DX special dipole

To: towertalk@contesting.com
Subject: Re: [TowerTalk] 80m DX special dipole
From: "Joe Subich, W4TV" <lists@subich.com>
Date: Thu, 13 Sep 2018 18:30:26 -0400
List-post: <mailto:towertalk@contesting.com>

In this case the station is operated remotely.  It is not practical to
adjust a manual antenna tuner!

73,

   ... Joe, W4TV


On 2018-09-13 6:03 PM, Tom Osborne wrote:
Wouldn't it just be MUCH easier to put some ladder line on the antenna and
use a Matchbox to tune it??


That is what I do here. Using an old Johnson Matchbox and the antenna works
like gangbusters on  ALL bands.   73

Tom W7WHY


It should be possible to broadband your vertical using lumped element
circuits at the base.  You would need to model or measure the base
impedance vs frequency and then find the element values by trial and
error with a modeling program like SimSmith.  Somewhere in the past, QST
had an article about this in "technical correspondence" that related to
dipoles.  That would at least get you started.

Dan:  can AUTO-EZ do this optimization?

73
Rick N6RK
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