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
>


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