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Re: [VHFcontesting] Balun on 6m yagi

To: "Mike (KA5CVH) Urich" <ka5cvh@gmail.com>
Subject: Re: [VHFcontesting] Balun on 6m yagi
From: John Kemker <john@kemker.org>
Date: Mon, 11 May 2009 11:18:15 -0400
List-post: <vhfcontesting@contesting.com">mailto:vhfcontesting@contesting.com>
Mike (KA5CVH) Urich wrote:
> On Sun, May 10, 2009 at 11:52 PM, John Geiger <aa5jg@yahoo.com> wrote:
>
> Would adding a coax balun (a few turns of coax by the feedpoint)
> improve performance in any way?
>
> Mike asks
>
> Are you sure you are not asking about a "choke" and not a bulun?  Some
> radio may benefit from a choke.  I have to run a 4" x 3 turn choke at
> the feedpoint of my KB6KQ loop with the FT-100 but no other radio I
> have needs it.
>
>   
You might instead consider adding some ferrite "beads" on the coax near 
the feedpoint for the same reason.  All you're really doing is keeping 
stray RF off of the shield of the coax.

-- 
--JohnK
73 de W5NNH
10X 75371/M&M 117/SMIRK 6185/TRA 2499/Norcross 228 F&AM




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