On Sun, 22 Nov 2009 22:12:21 -0500, "Ralph Mowery"
wrote:

"J. Mc Laughlin" wrote in message
. ..
The antenna can be seen at: http://docpg.org

Probably this one:
http://www.hamanuals.com/MMans/KLM80.pdf

A KLM-34A.

Yep. The photo looks like the original by KLM known as the KT-34. The
shorting bars are heavier (thicker) on the version currently made by
M2, known as the KT-34M2. See:
http://www.m2inc.com
http://www.m2inc.com/products/kt/kt34/kt34m2.html
http://www.m2inc.com/products/klmaddon/index.html
Better photos:
http://n4zi.net/kt34xa_upgrade_page.htm

Mike Staal (W6MYC), one of the founders of KLM, runs M2
http://www.cq-vhf.com/M2AntennaFall06.html
and might offer some assistance.

Doing a bit more Googling, I found plenty of detail at:
http://lists.contesting.com/archives//html/towertalk/2008-04/msg00135.html
http://lists.contesting.com/archives//html/Towertalk/2008-03/msg00478.html
which indicates that a model may be a challenge:

For entertainment, and with low expectations, I put together a model of
the KT34A using MMANA, recognizing that, for free, you cannot get high
quality results. I can supply the input file if anyone is interested.
M2 indicates that more sophisticated models are need to handle the novel
loading. Using capacitive loads in the model for the two traps, I
experimented with values of capacitance that would produce resonances
that were either my observed ones or M2 measured ones for the individual
elements. Somewhat surprisingly, the required Cs are not terribly
different from what you get by calculation for a co-cylinder cap of the
actual dimensions. Note that the inductances for the traps are
determined by the dimensions of the loops in the elements and these are
probably modeled okay. The model has all the segments of the actual
antenna, aside from capacitors.
(etc...)

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558