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Re: [TowerTalk] FW: Custom antenna design

To: towertalk@contesting.com
Subject: Re: [TowerTalk] FW: Custom antenna design
From: David Gilbert <xdavid@cis-broadband.com>
Date: Tue, 17 Sep 2013 14:12:53 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>


Just guessing here, but a coil loaded Moxon might work. It probably wouldn't provide a lot more gain, but if it worked it would have a much improved pattern. Moxons rely on coupling between the folded tips of the forward and rear elements, though, so I suspect such an antenna would involve a bit of trial and error to optimize it.

73,
Dave   AB7E





From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
Charlie Gallo
Sent: Tuesday, September 17, 2013 1:02 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Custom antenna design

Hey Gang

OK - here is a question - anyone out there doing custom beams?  I have kind
of a sticky

Right now I'm running a Force 12 D-140, frankly because that all that will
FIT - I have a 38ft piece of property, and it has an 18 ft turning radius

I'd LOVE to have a bit more gain, but even the smallest shorty 40s I've
found are SLIGHTLY too big.

I was wondering if anyone could design a 18.5 ft or less turning radius 40m
beam...

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