[Lowfer] Band conditions

[Larry Putman]

Bill,

I am just surprised that I can see your signal so well
with your loops not favoring my direction! No need to change
your positioning for me. I had one capture last night that was
very strong from you!

Yes the K9AY gives a good switchable cardioid pattern
and I have a very quiet rf environment.

Larry

----- Original Message -----
From: "Bill Ashlock" <ashlockw@hotmail.com>
To: <lowfer@mailman.qth.net>
Sent: Sunday, October 13, 2002 7:16 PM
Subject: Re: [Lowfer] Band conditions


> Hi Larry,
>
> >Bill are your loops still rotating?
>
> Not at the moment (the pattern, that is). I'm set up to send a rotating pattern
but for the last 8 months or so I've been sending only in the E/W direction in
order to maximize the signal where most of the listeners are located. If anyone
to the south would like to see WA please let me know.
>
> >Since these TX loops seem to be doing such a good job would a loop built
similar to the TX loop work better
> >as a receiving loop also??
>
> It's not a case of which RX antenna has the highest output but which antenna
has the best S/N - a fact that seems to be left out of half the antenna
discussions I see. My TX loops are inferior in the receive mode at this location
because this is a fairly close-in neighborhood (every household has an average of
two PCs) and even though the signals can be strong enough, using nothing more
than a diode and a pair of headphones, the S/N is lousy.  For a simple loop (one
plane only) nobody has shown me that increasing the size beyond a 6ft diameter
improves the S/N, and anything over this eliminates the ability to rotate the
loop with a low cost rotator.  Where the moderately large RX loop can be used to
a big advantage is when two loops are used to give a switchable cardioid pattern.
Your situation, right?
>
> Bill A
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