On Thu, 07 Apr 2005 10:05:04 -0700, Roy Lewallen
wrote:

But there are, certainly, some kinds of
antennas which it really can't model properly for one reason or another.
The Lattin antenna is one of those.

Hi Roy,

Having model dozens of variations of this antenna, as well as what was
described in the patent - I cannot think of one reason why it should
work except through haphazard luck. Certainly the offered "theories"
are no more credible than those for other antennas that defy modeling
such as the single or double bazooka, the eh, the cfa.

This antenna has many reports of its confounding expectation and then
in the same breath those who are confounded expressing their sincere
belief it works. It's one of those situations where the builder can't
get it to sing, but has a brother-in-law who knows this fellow who
lives next door to one who can, but who took it down ten years ago
because it was so hard to tune.

Perhaps you could widen your customer base if you added a "belief
scale" to the available control settings for EZNEC. It could range
from "agnostic" to "I believe in miracles."

73's
Richard Clark, KB7QHC