Hello Pete,
Gary - K9AY is a "local". I've spoken with him in person about this same issue
that I experienced at my QTH. The loop geometry is not real critical but a
good ground is extremely important. I have poor soil conductivity here.
Gary recommended putting a radial wire directly under each of the loops
extending several feet beyond the edge of each loop. Also be sure to use
common mode chokes on the RF and control lines.
73
Lloyd - N9LB
-----Original Message-----
From: Topband [mailto:topband-bounces+lloydberg=tds.net@contesting.com] On
Behalf Of N4ZR
Sent: Thursday, January 14, 2021 8:24 PM
To: topband reflector <Topband@contesting.com>
Subject: Topband: K9AY Loop Question
I'm in the process of putting up a K9AY loop, using the Array Solutions/Wolf RF
control boxes. I had the antenna up last year but it didn't seem to work very
well, and I'm looking for suggestions. A couple of areas for which I've found
no answers:
How important is the geometry of the loops? Illustrations I've seen seem to
imply that the lower legs should slope upward somewhat to the corners, but
without dimensions other than the total length of the loops.
The ground around the antenna slopes slightly toward one side - should I
attempt to get the corners in the same plane, or the same distance above ground?
The relay box is mounted on the central fiberglass pole is approximately
2 feet above ground. Is this dimension important? The relay box is grounded
to a ground rod very close by. Last year I experimented with also laying a
couple of radials on the ground under the loops. I read that suggested
somewhere, but don't know if it's a good or bad idea.
--
73, Pete N4ZR
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