On Thu, 19 Nov 2009 13:20:01 -0800, Richard Clark
wrote:

My model shows a more benign mismatch to a 72 Ohm load.
Richard Clark, KB7QHC

I built several models of the antenna folded dipole assembly. The
simple rectangular rod folded dipole yielded about 300 ohms. A
slightly better simulation of the rounded ends, but still using a
round rod, was about 260 ohms. Converting it to a flat wire ended up
about 280 ohms. I never got anything even close to 72 ohms. It's my
http://802.11junk.com/jeffl/antennas/mfj1800/

Show my your NEC2 deck and tell me what I did wrong, and maybe I'll
believe that it's 72 ohms. Incidentally, the possibility that I
screwed up somewhere in the model is quite real:
http://802.11junk.com/jeffl/antennas/mfj1800/mfj1800.txt
(I'll convert this mess back to a macro form so it's easier to read
maybe this weekend).

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