[Lowfer] K9AY vs. multi turn loop

[Dale Parfitt]

Bill Ashlock wrote:

> Dale,
>
> I finally got the chance to look into how these K9AYs work. In the simplest,
> one loop design, you actually have a loop that is sensitive to both the
> H-field and E-field. The amount of series resistance (0 to 1 kohm)
> determines how much E-field sensitivity there is. This gives rise to the
> cardioid pattern and I've seen similar designs, using much smaller loops and
> a small E-probe signal summed in via a variable resistor, for direction
> finding.
>
> Some day I'll transmit on both a loop and a vertical in the right portions
> to form a cardioid pattern rather than a figure '8'.
>
> Bill A
>

Hi Bill,
I too have been doing some reading- and received some articles from Mitch on
larger K9AY's and ones with different aspect ratios- all on mitch's site.
Now, to start cutting wires.
Replaced a pile of black beauties in the SX-88 tonight- have done 25+ and have
about 8 to go before I can apply power. This thing is a monster- will be glad to
get it off the bench.
Dale W4OP