On Mar 29, 12:30*pm, John Smith wrote:
And, that said, I use a helical wound, half-wave electrical length -
quarter-wave physical length, monopole in lieu of a 1/4 wave
physical-length and physical length antenna. *And, in personal
experience, this DOES provide increased performance over the 1/4 wave.

Unlike the original example, that would produce a quite different
current distribution on the antenna. I suspect the half-wave helical
wouldn't require as good a radial system as the standard 1/4WL
monopole since the current maximum point is halfway up the helical.
Did you end-feed the beast or center-feed it? Did you have a good
radial system?
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73, Cecil, w5dxp.com