Hello- I hope I do not intrude too much here for a little advice about 160
meter antenna choices. I am getting settled in to my new QTH and am in process
of getting antenna systems put up. I have a 30' x 50' metal shop building, the
50' length running east/west, sitting on about 4 acres behind the house
available for antennas. There is a 130' tower off NW corner of building about
45' out, and a 140' tower sitting 20' out away the south wall of building,
centered on the buildings 50' wall. The towers are about 110' apart. I have 5
total runs of 1-5/8" heliax plus other rotor, control and smaller feedlines all
coming into the building from these two towers; the cables are entering
building about 13' above ground. I operate VHF/UHF a lot, but want a decent 160
meter antenna. The 2 towers will have mostly 144, 222, 432, 1296 yagis plus 40
meter rotary dipole. The tower guy wires are broken up with insulators in 27'
segments. Eventually I plan to put up a 160 meter vertical out in the open area
but for right now I am looking for suggestions on what I can hang off of one of
the towers. I have considered an inverted-V as I can fan the legs out pretty
far/high to get a decent apex angle. I have considered an inverted-L but really
do not want to have the several radials in the way (if I go above ground) or to
do a more extensive ground radial system around building/towers areas. I have
considered a compressed delta loop, fed 1/4 wave down from apex for vertical
polarization. Of course, shunt feeding a tower is out of consideration due to
feedlines coming off of towers about 20' up. I was considering running a heavy
dacron cord from the top of one of the towers, making a span out of about 250'
out to a support around 40'-50' tall. About 140' out I would have the top
loading wire for a "T" vertical antenna. The top loading wire would be slanted
but I believe that is not too bad a compromise. The vertical would be in the
clear and I could put in a really good radial system. I believe I could get
about 80' height of vertical to "T" wire center. Possibly this could be a more
permanent 160 meter transmitting vertical. Just open for suggestions.Thanks,
Byron W5FH
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