[KYHAM] 2 Meter Antenna Question
Cecil E Ferguson
[email protected]
Wed, 26 Jun 2002 23:08:49 -0500
I've been following the posts with interest and agree with all these good
points. I've been using such an antenna attached to one of the walls in
the shack for a number of years and with very good results. I ran some
comparison tests with a regular 1/4 wl vertical with a 4 element ground
plane bent downward at 45 degrees, mounted outside and up about 25 feet.
At a distance of 300 yards away and with flea power, the readings are
comparable, even with the increased height of the vertical. At greater
distances, the increased height and less effect of the higher radiation
angle of the vertical would most probably begin to show a little better
performance, however.
To expand on the point, that of not mounting the antenna near a grounded
object - doesn't that hold true with any of our antennae? A second point
is this: Some users of the twin lead in "J-Pole" feel as I do about the
connection at the feed point. I hold the belief, based on some very
elementary testing, that the coax feeding the antenna should be
perpendicular to the antenna for some distance, at least one wavelength.
Seems as though better thing happen when it is at 90 degrees. I realize
that in many instances, this is difficult, but if hung on a wall or from
the ceiling, why not?
Just had to butt in.
73 to all,
Gene
KE4NNA