[Lowfer] K9AY vs. multi turn loop

[Dale Parfitt]

Johan Bodin wrote:

> Dale,
>
> > On the K9AY I would erect 2 loops and be able to switch the null N-E-S-W.
>
> You can get 8 null directions from just two loops simply by adding two
> DPDT relays to the "outdoor box". If you connect the two loops in series,
> the result will be a funny looking two-turn loop with an average winding
> plane that is at +45 degrees to the physical loops. Then reverse the
> polarity of one of the loops and youl'll get -45 degrees. Together with
> the original configuration, this brings you nulls in N-NE-E-SE-S-SW-W-NW.
>
> My antenna works great on LF but sometimes behaves a little bit
> strange in the upper half of the MW band. Probably because the loop
> wire length becomes a considerable fraction of a wavelength. Could
> have something to do with angle of arrival too, I guess...
>
> Oh, I almost forgot, the termination has to be adjusted slightly when
> switching between "normal" and "45 deg" null directions.
>
> 73
> Johan Bodin SM6LKM
>

Thanks Johan,
I see what you are doing- will have to draw it out.
What is  the circumference of your loop?

Dale W4OP