Hi Tom,
> > I have a friend who lives in a tower restricted neighborhood near
> > Houston TX and is is currently using a Butternut HF6V 10-80 (WARC
> > is extra) vertical, but is considering changing to a Sommer Model
> > no. T25 vertical that works on 80, 40, 30, 20, 17, 15, 12 and 10
> > and uses no traps. No far no one has noticed the vertical in his
> > backyard and he has about 25-30 buried radials.
> >
> > Anyone on the TT list used this antenna and if so how would you
> > rate it?
A nearby ham bought one and installed it as described in the
instruction in a clear area. He had a sub-mobile-whip-signal on 160
meters, and wasn't much better on 80 meters.
My low dipoles, at about 50 feet absolutely blew him away on 160 and
80, and a Hygain "no radial" vertical of mine whipped him on 40.
He installed a base loading coil in a mast made out of that antenna,
and picked up a very large amount on 160. As I recall, it was about
20 dB change. On 80, it also helped a whole bunch also, but he had to
run out and change taps.
The antenna models to have significant loss on low bands, decreasing
to a few db loss on some higher bands compared to a vertical without
a ground.
By the way, he installed a Butternut vertical and is quite happy with
it despite having to add a loading coil on 160. Next time I hear him,
I'll tell him your friend is thinking of changing a Butternut to a T-
25. I'd bet he gets excited!
73, Tom W8JI
W8JI@contesting.com
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