On Tue, 3 Oct 2006 08:43:07 +0100, Ian White GM3SEK
wrote:

The modeling challenge is that the ribbon operates in two different
modes at the same time: a radiating common mode with a velocity factor
of say 0.95; and a non-radiating "stub" mode with a VF of about 0.8.

Hi Ian,

This "two different modes" is the magic mode factor that has not been
designed into EZNEC.

One need only look at the Lattin designs that "work" to discover they
violate the precepts of "how" they work.

Then note those that "should" work result in those don't work.

The bottom line is fairly obvious, but there are those who can 'splain
how its done (see magic mode factor).

73's
Richard Clark, KB7QHC