On Thu, 23 Sep 2010 05:35:25 -0700 (PDT), "'Doc"
wrote:

Richard,
Did you look at #30 in the site index given?
That was the first reference to a "Half Delta Loop" I found. It uses
a ground at the feed point and at the 'far end'. Using a single
conductor to connect those two 'grounds' is a fairly common method of
modifying that antenna. I would have to guess that it isn't the -
only- such modification though.
- 'Doc


Hi Doc,

Without quote support for that site, I haven't a clue.

Using a ground at the feed point says nothing, really. What does
"ground" mean? A rod? A screen? A radial field? Any of these will
change the picture considerably (OK, maybe 1dB - sometimes ground is
over-rated).

73's
Richard Clark, KB7QHC