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Re: [TowerTalk] Multiband antenna with non-resonant trap

To: towertalk@contesting.com, hanslg@aol.com
Subject: Re: [TowerTalk] Multiband antenna with non-resonant trap
From: Bob W5RN <rj.newton.w5rn@verizon.net>
Date: Sun, 26 May 2013 11:50:28 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
It was Ham Radio

    Designing Trap Antennas: A New Approach
    Yardly Beers W0JF
    Ham Radio, Aug. 1987, Vol. 20, #8, P. 60

I have the issue someplace but could not put my hands on it. Just found it!

If you need a copy, I can scan and send it.

Bob Newton W5RN

On 5/25/2013 9:36 PM, Hans Hammarquist wrote:
This might be the wrong forum but does anyone remember an article in QST (or 
maybe QEX) of how to make multibands antennas using LC traps where the traps 
resonance frequency is not at the operating frequencies. By putting an LC 
circuit somewhere in or close to the center of a vertical you get two 
resonances, one where the C-part act and increase the resonance and one where 
the L-part decreases the resonance frequency.


Anyone?


73 de,


Hans - N2JFS
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