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Re: [TowerTalk] 40 meter vertical beam

To: Tom Osborne <w7why@frontier.com>, TowerTalk <towertalk@contesting.com>
Subject: Re: [TowerTalk] 40 meter vertical beam
From: dw <bw_dw@fastmail.fm>
Date: Mon, 07 Mar 2016 13:59:22 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Googling for phased vertical dipoles will probabaly turn up some
results.


On Mon, Mar 7, 2016, at 01:55 PM, Tom Osborne wrote:
> Hi All
> 
> I have a 40 meter vertical dipole that I would like to put a reflector
> behind.
> 
> I was looking in a CQ Contest magazine at an article from N6BT of the
> Team
> Vertical group.  They put up verticals for their contest setup.  One of
> the
> antennas they used was a vertical beam on 40 with DE and Ref.
> 
> According to the modeling, he said the regular calculated dimension for
> the
> reflector didn't work.  It had to be a different length, but he didn't
> say
> what it was.  I can't find anything online about this antenna.
> 
> Does anyone know the formula for cutting the reflector length for the
> vertical beam?  The vertical dipole is in a tree with the bottom about 6
> feet in the air.
> 
> Thanks and 73
> Tom W7WHY
> _______________________________________________
> 
> 
> 
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-- 
 Bw_dw@fastmail.net

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