The trouble with this discussion is that it attempts to figure out the
optimum way to elevate a vertical antenna, while ignoring the well
established principle that elevating a vertical doesn't work very well
in the first place, no matter what is done to feed it. While elevating
a horizontal dipole is well known to produce ground gain, the same
cannot be said for a vertical dipole. Something about the pseudo
Brewster angle.
73, Rick N6RK
On 1/12/2026 12:37 PM, Jim Brown wrote:
On 1/12/2026 10:46 AM, Tom Hellem wrote:
Any ideas?
This is a method I played with about ten years ago. It worked fine for
100W. I've never tried with with higher power. I expect that multiple
chokes in series would be needed. That's easy to figure out -- the issue
would be heating of the choke(s) -- transmit for a while, then go out
and feel it. As long as you can leave fingers on the core, I wouldn't
worry about it.
http://k9yc.com/VerticalDipole.pdf
73, Jim K9YC
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