Ed I used to have half sloper for more than 10 years and it was working
quite well but a few
years ago I tried shunt feed the same tower ( 21m with big yagi on the
top) and the difference
was 1-2 S favouring shunt fed tower ( I was making tests with far DX
stations).
73 Rys
SP5EWY
W dniu 2017-10-28 o 15:04, Pete Rimmel N8PR pisze:
Why not try a Half Sloper. Your tall crank up would work well with that...
Take Coax up inside the tower and then run the braid to ground at the top of
the tower and a 1/4 wave wire +/- off to one side at about 45 degrees.
It will make the whole system work. You might have to cut or lengthen the 1/4
wave wire to resonance.
Subject: Topband: 160m Vertical Ideas?
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Greetings!
Trying to figure out my scheme for 160m. I currently have three crank up
towers about 35? apart from one another. One cranks up to 106?, the next to 70?
and third, to 89?.
I figured I could shunt feed one of the taller towers and call it good but I?m
concerned about interaction amongst the towers.
Another option is to install an independent vertical about 150? away.. This
would minimize any interaction and would allow me to lay more/longer radials.
I could go up about 65? in height.
Inv L is not really an option, as I have no tall trees nearby.
Thoughts? Ideas? I welcome your feedback.
73,
Ed NI6S
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