Not to heap coals on the fire, but I also owned an early R5 and it was a
terrible performer. I had it over a year and when I finally got rid of
it and put up a simple 20m vertical in the exact same spot on the roof
and fed it against random length wires as a "ground plane", the
improvement was astounding. I don't think the basic concept was so bad,
but the implementation was horrible. I realized what I had as soon as I
opened up that little box at the base and saw what some clueless person
thought could act like a matching network.
In general, though, I think it is a mistake to characterize all
verticals a poor performers. It's all a function of efficiency
(avoiding losses) and location. Check out the ground conductivity
charts across the U.S. and you'll see huge differences, with some areas
essentially acting as terrestrial dummy loads. Nearby structures that
can absorb energy or distort patterns represent other possible culprits
for bad results with verticals. I used nothing but verticals for most
of three decades, but mine were always on a flat roof and well in the
clear of anything nearby.
73,
Dave AB7E
On 9/11/2014 5:29 AM, Barry wrote:
Bill Levy wrote
I had no trouble at all keeping in touch with my family using an early R5
vertical in 5H3 land when I was working there.
Bill N2WL
ex 5H3WL, 5Z4PI and VQ9WL
Having those callsigns gave you an extra 20 db gain. I've tried a few
verticals over the years and found them to be poor performers.
Barry W2UP
--
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