I used the K9AY loop on a 60' by 90' suburban lot near Houston. My transmit
antenna was an inverted L between two very tall pine trees. and one side of the
AY loop
was 6' from the single elevated radial of the inverted L. I had to detune the L
because too much noise was radiated to the loop and I had to replace the
resistors with 5 watt
ratings to keep from burning them up on transmit.
The AY loop was the difference between working stations or not working
stations. I did orient it for nulling noise and not peaking
stations since it does have a fairly broad pattern.
When I live near Sewannee, TN on top of a sandstone plateau, my first install
of the AY loop did not work. Laying down eight 25' radials
brought it to life. I did lay out a 600' beverage and noted a quite a
difference between the two antennas.
At times the noise reduction is not much but it may be enough for working a
weak station for a new one.
I will install the AY loop at my WTX QTH.
73, Mike WA5POK
On Sunday, January 2, 2022, 10:29:42 AM EST, Pete Smith N4ZR
<pete.n4zr@gmail.com> wrote:
I recently installed a K9AY loop (with the Array Solutions controller),
and have a couple of questions. Installation is pretty standard, with a
fiberglass pole at the center, ground rod at its base, and on the ground
radials under each direction of the loop.
The antenna is directional, as demonstrated by tuning in broadcast
stations at the high end of the AM band and separating stations on the
same frequency so that I can hear one or the other. Atmospheric noise
is 1-2 S units more on my inverted L than on the K9AY antenna, but
signal strengths of stations in the favored direction of the loop seem
about the same or a bit lower than the inverted L. The Termination
adjustment is working, to judge by the switching transients, but seems
to make little or no difference.
How do these results compare with others' experience? I didn't expect a
"magic bullet", but the K9AY loop seems a little bit underwhelming.
--
73, Pete N4ZR
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