[TowerTalk] Custom antenna design

john at kk9a.com john at kk9a.com
Tue Sep 17 21:28:39 EDT 2013

Another option would be to bend the element tips of a conventional loaded 

----- Original Message ----- 
From: <john at kk9a.com>
To: <TOWERTALK at contesting.com>
Cc: "Charlie Gallo" <Charlie at TheGallos.com>
Sent: Tuesday, September 17, 2013 21:23
Subject: re: [TowerTalk] Custom antenna design

OptiBeam OB2-40M is probably the smallest 40m beam and the turning radius is
6m (19' 8").  Their OB1-40 dipole has a 7.35m radius.  I am surprised that
your Force12 dipole is that small.  Is there a problem with having an
antenna hang over your neighbor's property?  Nearly all of my beams in Aruba
hung over the neighbor's property when turned a certain way.  It really was
not that noticeable and it never caused a complaint.

John KK9A / P40A

To:towertalk at contesting.com
Subject:[TowerTalk] Custom antenna design
From:Charlie Gallo <Charlie at TheGallos.com>
Reply-to:Charlie Gallo <Charlie at TheGallos.com>
Date:Tue, 17 Sep 2013 14:01:50 -0400
List-post:<towertalk at contesting.com">mailto:towertalk at contesting.com>

Hey Gang

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

Right now I'm running a Force 12 D-140, frankly because that all that will
- 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
are SLIGHTLY too big.

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

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