Cecil Moore wrote in message ...
Dave wrote:
I'm considering putting up a 33' vertical - just 3 sections of Rat Shack
mast (solidly bolted for continuity) plus a 3+/- foot 'adjustable' part
on the bottom to 'trim' the length. Then a bunch of in-ground radials.
40m is my only 'serious' band. 15 meters should be a bonus, right?
Or not?

Not really. 33 ft. is too long for good 15m performance. The take-off-
angle at the highest gain point is 47 degrees. The free version of
EZNEC at eznec.com will show that.

It will still be quite usable for "average" use. Maybe not as good as
a shorter vertical at low angles, but he wouldn't have trouble making
contacts with it. My 40/17 GP worked pretty well on 15m, despite the
increased average angle of radiation. It was lame as heck on 12 and 10
though...No doubt about it...MK