[TowerTalk] Custom antenna design

[Michael Tope]

I think the 20 meter "Hex-Beam" has a 9.4 ft turning radius, so it 
stands to reason that a 40 meter version could (with a little tweaking) 
be made to fit inside an 18ft circle. In fact if you go to the "Traffie 
Technology" specs page you see what looks to be an incomplete entry for 
a 40 meter monoband version presumably with a 19ft turning radius and 
weighing 40 lbs:

ttp://www.hexbeam.com/specs.shtml

73 Mike W4EF.................

On 9/17/2013 6:28 PM, john at kk9a.com wrote:
> Another option would be to bend the element tips of a conventional loaded
> yagi.
>
> ----- 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
> 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...