This is the point exactly ... the radiation resistance of a "short"
vertical (less than 50' or so on 160) combined with the relatively
high losses in a base loading coil and less than optimum ground makes
a low dipole as good a choice as a "short" vertical. Now, if one is
talking about a 60 or 70' shunt fed tower with yagi for top loading
and 30 to 60 radials 50 foot or more long, I'll take the tower every
time.
73,
... Joe, W4TV
On 2014-12-17 1:46 PM, RLVZ--- via TowerTalk wrote:
For 160-m. I agree with John's statement below, unless the vertical is
real short and base loaded in which case I'd prefer a low Dipole or Inverted
Vee on if there's no better option such as a top loaded vertical, Shunt Fed
tower, or a Slant L. Example: one of the first year's I came to Florida, I
mounted a very short 20' base loaded vertical at the edge of a salt water
river that had line-of-sight over salt-water to a large area I was trying
to work. I also had a low Inverted Vee for 160-m. with apex at 50' and ends
at 20'. I thought the short vertical would do better on DX, but the short
vertical was down 10-20dB in every case.
73, Dick- K9OM
In a message dated 12/17/2014 10:22:52 A.M. Eastern Standard Time,
john@kk9a.com writes:
I never had much success using a low dipole, even from the Caribbean. For
me a short vertical with a minimal ground system worked better and it used
much less real estate.
John KK9A
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