I concur with Tim's comment, below. With a K9AY loop array, you're
really pointing the null much more than the forward lobe.
Additionally, I've noticed that when there is high angle QRN (generally
T-storm activity from wherever), my K9AY loop array is not especially
useful, and I can't get a null on the noise in any of the four
directions. Without that kind of noise source, it works well. It's
not as good as my 700' Beverage, but I'm glad to have it available.
73,
Steve
NN4X
On 1/29/2019 12:00 PM, topband-request@contesting.com wrote:
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3. Re: Found my K9AY by WX0B AX-AYl-4 unit (Lloyd - N9LB)
------------------------------
Message: 2
Date: Tue, 29 Jan 2019 06:54:37 -0500
From: Tim Shoppa <tshoppa@gmail.com>
To: terry burge <ki7m@comcast.net>
Cc: topband@contesting.com
Subject: Re: Topband: Found my K9AY by WX0B AX-AYl-4 unit
Message-ID: <C9DE591C-7D5D-4578-9D1F-88EA96C65229@gmail.com>
Content-Type: text/plain; charset=utf-8
We should not think of a K9AY as having a sharp forward peak. You won?t be able
to tell NE from E easily. However they have a very good and useful backwards
null which is deep.
The loops do not have to be perpendicular. Point the loops in directions that
give you the most useful nulls.
My K9AY loop is right under my TX antenna and near some chain link fence. And
it is hung from and runs through trees. It works great! If I point it NE, the
W4?s drop into the noise. If I point it SW, the W1?s drop into the noise.
Tim N3QE
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