Topband: Shape and height of K9AY loops

2023-01-20 Thread Pete Smith N4ZR
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 botto

Re: Topband: Shape and height of K9AY loops

2023-01-20 Thread Boye Christensen via Topband
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 r

Re: Topband: Shape and height of K9AY loops

2023-01-21 Thread K9AY
Pete, 1) Larger size increases the signal strength, but may reduce F/B on 80M. If your emphasis is 160M, the loop can be much larger, up to 1/4-wave of wire. The optimum terminating resistance will change a bit. 2) Shape affects the elevation of the rear null. In general, a wider loop lowers