While the pattern is a cloud burner on 80M (when sized for full wave on
80M), the radiation angle comes down as the frequency is increased.
Additional lobes appear, but it is a good useful antenna for local work,
particularly on low bands, with gain over a dipole. There is enough low
angle radiation to work DX, especially on the next band up. It is also
inexpensive.
I like this antenna for stateside contacts and is a good one for FD or
stateside contests - especially on the lower bands like 40 and 80M.
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
Richard (Rick) Karlquist
Sent: Monday, August 22, 2016 9:42 PM
To: Mickey Baker <fishflorida@gmail.com>; n4jbk@comcast.net
Cc: towertalk@contesting.com
Subject: Re: [TowerTalk] Long"ish" loop
On 8/22/2016 11:15 AM, Mickey Baker wrote:
> I would choose a length with good radiation efficiency. There's a
> group on Yahoo! about "skywire" antennas and here's a good article
> that models a 574' skywire: http://n1su.com/loop.html
>
This URL refers back to a 1985 QST article by W0MHS.
This seems to be the oldest published information on this design. In this
article, the author freely admits there is no technical basis for this
design.
When he does get into technical areas, he makes nonsensical statements such
as that the design is a "magnetic loop". No. It's all testimonials.
There's no there there.
Subsequent articles that build on this article add little technical basis
for the performance claims.
The principle discussion seems to be based on the antenna providing a good
match on a lot of bands without a tuner. That's nice, but no discussion of
the pattern, etc. With today's autotuners, it is no longer necessary to
sacrifice other antenna parameters to worry about matching.
Rick N6RK
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