Topband: K9AY RX antenna

[John Langridge]

Hi Pete,

Unless the K9AY system is located a long way away from the TX antenna
(several wavelengths?), you are going to have to have to have the
option to detune your TX antenna AT the feed point in order for that
RX antenna to offer any sense of pattern.  The level of noise coupling
is shocking without detuning.

I would not expect the K9AY to offer signals that are louder than the
Inv. L out of the box but you should be able to hear them better and
knocking down loud local signals is a big feature.

Various K9AY systems have been good performers here on my suburban lot
for 20+ years.  But you have to detune the TX antenna on RX to work
properly.

73!

John, KB5NJD..



On 1/31/22, Pete Smith N4ZR <pete.n4zr at gmail.com> wrote:
> My K9AY loop (the commercial version from Array Solutions) seems to be
> kind of an indifferent performer.  I believe it is set up properly. and
> I've laid down a radial under each side of the loops, but while it shows
> some directivity on high-end broadcast stations, 160M directivity is
> limited to nil, signal strengths are rarely better than my inverted-L,
> and the adjusting the termination seems to make very little difference.
> Any hints?
>
> --
> 73, Pete N4ZR
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