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Re: [TowerTalk] 2m/70cm beam on HF Tribander boom

To: towertalk@contesting.com
Subject: Re: [TowerTalk] 2m/70cm beam on HF Tribander boom
From: "Dan Zimmerman" <danzimmerman@gmail.com>
Date: Wed, 1 Nov 2006 14:59:21 -0500
List-post: <mailto:towertalk@contesting.com>
You could redesign the A2706S to work on the A3S's boom.  It won't
interact much with the ELEMENTS provided you're talking about vertical
and not horizontal polarization.

However, the boom for the A3S is MUCH bigger than the boom for the
A2706S, I'd expect, and will probably noticeably detune the elements.
I'd consider mounting the ENTIRE A2706S at the front end of the A3S's
boom instead.  Just make an adapter and hang it of the forward end.
It might be worth adding a counterweight at the other end of the boom,
I don't know, but I expect that the 2m/70cm beam is pretty light.

Dan

On 10/31/06, Todd Coulter <coulter@bellsouth.net> wrote:
> I am considering incorporating a Cushcraft A2706S 2m/70cm beam(3 elements on 
> both band) onto an existing Cushcraft A3S boom. The elements would be 
> directly attached to the A3S boom(2m on one side and 70cm on the opposite 
> side) and would not use the boom supplied with the A2706S.
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