On 26 Nov, 10:46, John Smith wrote:
Richard Fry wrote:

...

I just looked at that patent, and saw nothing about that. I did see
many references to the need for a good r-f ground for the DLM.

As a variation, the patent describes putting two DLMs back to back to
create a dipole. Of course, that form is no longer a DLM, it is a
loaded dipole.

Can you refer me to the page(s) of that patent that describe(s) what you
are writing about?

RF

Well, give me a bit, and remind me if I don't get back to you in a
couple of days ...

However, I have a 10m and a 20m 1/2-wave DLM I am using now, I
constructed them from the info. gleamed from the patent, conversation
with Vincent, web, ...

Hold on ... just overloaded after the holidays--except for quick
comments ...

Regards,
JS

The post that originated this thread stated that the antenna was
unbalanced and therefore should have a ground system.
Fry had some comments that were not related or in conflict
with what was stated, he just doesn't read to well.
Back to the originating post.The antenna is unbalanced but without a
connected ground system such that current will flow on the outside of
the coax braid. If this braid is buried this current will leak to the
ground(capacitive coupling). Question. At what distance does the coax
have to travel such that current on the outside does not exist?
Art