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Re: [TowerTalk] Antenna Testing

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Antenna Testing
From: "Joe Subich, W4TV" <lists@subich.com>
Date: Wed, 17 Oct 2012 10:38:42 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>

He tested several antennas against the quad, by visiting each test
antenna owner's station, and reported how well each test antenna
stacked up against his reference quad.

The reference antenna was a Hy-gain TH2 ... not a quad.  Some of the
antennas tested were rather large quads.

Although the reference antenna antenna was on a trailer mounted
crank-up, the big problem with the study was that there was no
control for tower height of the fixed station antennas and take
off angle issues severely clouded the data.

73,

   ... Joe, W4TV


On 10/17/2012 10:29 AM, Big Don wrote:
Guess we weren't clear on the methodology.  He tested several antennas
against the quad, by visiting each test antenna owner's station, and
reported how well each test antenna stacked up against his reference quad.
  In the article, he ranked something like a half a dozen or so antennas,
thus tested, compared with each other, not necessarily with his quad.

One of y'all with a good library of QST, 73, CQ and Ham Radio should be
able to find it...
Don N7EF

On Wed, Oct 17, 2012 at 7:17 AM, Michael Goins <wmgoins@gmail.com> wrote:

No doubt a 6 el yagi won over a 2 el quad. Hard to imagine why it would
not under any circumstance or conditions.

Mike, k5wmg
"Instead of wondering when your next vacation is, maybe you ought to set
up a life you don't need to escape from."


*


*



On Wed, Oct 17, 2012 at 9:13 AM, Big Don <bigdon39@gmail.com> wrote:

Back in the early 80's (?), article was published in one of the ham mags,
by well-known ham believe it was N6 (something).  He had taken a 2-el quad
on a trailer crank-up, as his reference antenna, set it up a short
distance
from various stations he tested.  Took DX sig readings on a reference rig
switching back/forth between his reference antenna and the station's
antenna being tested.  IIRC, the winner of that study was 6-el KLM
monobander...

Don N7EF

On Wed, Oct 17, 2012 at 6:10 AM, Ward Silver <hwardsil@gmail.com> wrote:

As K9YC and others observe, this is a highly non-trivial exercise and
takes weeks.  I just do not have the time for the undertaking.  That's
actually part of why we published the detailed protocol...so that some
other motivated group could build on it.  Another possibility is for
one of
the big antenna or aerospace companies to make a test range available
for a
day or two and have a large group do it like Field Day.  But the writeup
and data-crunching will still take many, many hours.[-SNIP-]
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