RE: Inverted V Advice

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From: rohre (rohre@arlut.utexas.edu)
Date: Mon Dec 18 1995 - 11:52:19 EST


Steve, and the group:

Consider the legs of the G5 approaching each other ultimately turns it
into a vertical, fed at the top. Thus, the cancellation of the radiation
from the elements in the directions facing each other is the limiting
point on how close the legs can be. How much cancellation can you stand?
If the original idea you had; which is correct, is to get as much
RADIATING TO IONOSPHERE wire up, then; try to follow the handbook angles
for the inverted Vee. Better yet, put the G5 up as originally design-
ed, with the legs horizontal. In fact, I have demonstrated with one of
these, that they will still work well with ends only 15 to 20 feet off
local earth, but horizontal, and the feedline horizontal
in the plane of the wires at right angles to the center. That implies
to me that if you had limited horizontal space, you could make it work
even in a Zee shape but with the wires horizontal. The center of the
antenna could be the center of the slant bar of the Zee. Yes, there
would be some cancellation because of the folding back of each of the
dipole arms, but it might couple the waves better for your location,
without the noise pickup that often happens on a vertically polarized
radiator. There seems to be a consensus that an extreme inverted Vee
takes on the character of a vertical. This seems to be a little studied
area, and you perhaps could break new ground for us and report how a
Zee G5RV might work! If you don't worry about pattern, then whatever
it takes to get the wire up high and in the clear would do the most good.
Good Luck, 72,
Stuart K5KVH
rohre@arlut.utexas.edu


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