Dear All, Turning into the final stage lifting the stacks for 10m and 15m before ARRL-DX contests I need a bit of guidance regarding the feed-line setup. I read in the ARRL Antenna book that if 2x ve
Some of my Yagis are on masts and some are on rotating rings so there is some side offset, perhaps 50cm depending on the ring diameter. I have not modeled this offset however my stacks appear to work
I actually did model this a number of years ago. From memory: What matters is the DE line up. 1 to 2 ft was not material. A few tenths of a db. However it started dropping off pretty quickly to as mu
Ed, which way did you model it: fore-and-aft, or did you also model side-to-side?? It seems intuitive that if the offset is side-to-side (STS), then the main distortion would be the main lobe would d
It's important to remember that this is all frequency-dependent, with its effect proportional to frequency, thus most sensitive on 10M. Free space stacking gain of identical antennas symmetrically fe
I think the biggest advantage to stacking on HF (over ground) is the wider horizontal pattern. John KK9A Free space stacking gain of identical antennas symmetrically fed is 3 dB with lossless combini
I modeled it as it would be on the tower. About 30 ft separation for 10M yagis and moved the DE up and down the boom. I just looked at gain stacked. Its true that one great advantage of the stack is
Hi All, HNY to All! Seems my provider went for holidays too, got the replies only yesterday night in bulk. (hope my address is not bouncing ;-) Thanks a lot for the explanations and hints to All. As