Well, on a small suburban lot with TALL pine trees (four and a large sweet gum
tree in a square of 50 x60 feet), I had an inverted L with one L shaped
elevated radial on the perimeter of the lot. One leg of the K9AY loop was about
6' away from the elevated radial. On receive I switched in an inductor to
de-tune the transmit antenna to keep noise from being re-radiated to the loop.
Now on transmit, a resistor burned up in the relay box. I added the same
resistance except about 20 watts worth of dissipation and that took care of
that problem. I used no more than 600 watts output in the Houston area.
I did notice some directivity problems with the loop with the proximity of the
wire and trees but still the signal to noise ratio was improved enough to work
what I could not hear the the vertical.
When living in TN I had a larger lot and used a top loaded vertical and the
K9AY loop is about 50 feet from the transmit antenna and the loop seems to show
better directivity.I do not worry much about signal directivity but noticed
that I have better results when I orient the loop to null the noise.
I hope this helps. 73, Mike WA5POK
On Thursday, December 7, 2023 at 04:52:29 AM EST, Ashraf Chaabane
<ash.kf5eyy@gmail.com> wrote:
Hi All,
How far should a K9AY be spaced from resonant antenna? I presume there is
no impact from nearby trees.
Please advise.
--
Ash ~ 3V8SS/KF5EYY
http://www.kf5eyy.info/
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