Topband: Shape and height of K9AY loops
Boye Christensen
oz7c at ddxg.dk
Sat Jan 21 00:47:35 EST 2023
Hi
Larger is better. I have a K9AY 50% higher and wider. Better signal on
160/80m !
Don't forget to make four wires on the ground connected to shield to
ground on the box..
73 OZ7C Boye
On 20-01-2023 22:45, Pete Smith N4ZR wrote:
> I don't think I've ever read anything about this. Just rechecked the
> Array Solutions manual and found nothing. Reason for asking is that I
> have to replace my fiberglass mast, and while the old one was about 25
> feet tall, the new one is 31. That raises the possibility that I can
> put the bottom of the loops 5 feet higher, or change the shape of the
> loops, which currently have their bottom legs more or less parallel to
> the ground.
>
> Diagrams I have seen generally show included angles at the outer
> points of each loop to be well under 90 degrees, and the lower
> segments almost parallel to the ground. Has anyone experimented with
> this? What about the usual shape, but higher off the ground? I have
> 4X30' radials plus a ground rod, with the radials laid under and in
> line with the elements
>
More information about the Topband
mailing list