"John Smith" wrote
OK. Just quickly, so you don't think I am just attempting to "dust you
off." This:
"Current profiles have been developed for various such embodiments of 1/2
wave and 5/8 wave distributed loaded monopole antennas. The manipulation
of helix length and inductance as well as the ratio of load coil to helix
inductance may achieve a wide variety of suitable antennas."

Thanks, but a monopole of every electrical length is still a monopole, and
they ALL require a very good r-f ground or counterpoise for best
perfromance.

Further, you know, Mr. Vincent is one nice guy, at least my communications
with him convinced me of such. I would encourage you to make direct
contact with him, if the naysayers haven't totally peeved him off, I'd
venture to guess it would be quite an enlightening and enjoyable
interchange. Unfortunately, I don't remember
how I got his email and didn't add it to my address book, ...

Not to worry. Mr Vincent and I have exchanged comments already. I sent him
some NEC data and analysis which by his replies he did not appear to
understand. He seemed to think that I was trying to use NEC to analyze his
DLM designs -- saying that such was impossible.

But I wasn't attempting to do so. My NEC data only showed that his 3.5 MHz
standard DLM didn't perform very well as compared to a conventional
1/4-wave, unloaded monopole with a good r-f ground, and was about the equal
of a conventional monopole of the same physical height using the same r-f
ground -- which, of course, differs from his and the official URI test
report claims for the DLM.

RF