Since the tower is a radiator with a half sloper, probably connecting the
end 40m elements to the boom would be good. This should be easy to model.
I am not sure of a way to bond the tower sections but perhaps the connection
is fine the way it is.
An easy option would be vertical dipole with the ends pulled out into a C
shape. The downside is you may not like the lower wire running across your
backyard unless it could be along the privacy fence.
John KK9A
VE7RF wrote:
Has anybody used a 1/4 wave sloper (for 160m, aprx 120-130') hanging from
the top of a 89' crank up tower before ?
Due to the 5 x sections overlapping, the feed point would have to be at the
very top of the tower. IE: it can't be part way down from the top.
Will it work with some top loading, like a 3 el 40m yagi ? Right now, my
modified F12 340N yagi has all 3 x els insulated from the boom. ( oem LL
wire loading replaced with hb 3/8" tubing coils). I was seriously
thinking of bonding the REF and DIR to the boom, to increase the top
loading. REF is aprx 59' long. DIR is aprx 52' long.
I can't shunt feed the tower, since grnd mounted radials are out of the
question. House is blocking the path of any radials > 180 degs.
Jim VE7RF
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