I've modeled verticals near salt water in AO and seemed to get accurate
results. I'm not familiar with EZNEC, is there a setting for ground
conductivity?
John KK9A
To: RadioIR@charter.net, towertalk@contesting.com
Subject: [TowerTalk] EZNEC- needs improvement
From: RLVZ@aol.com
Date: Sun, 5 Apr 2009 15:29:43 EDT
Hi Guys,
TT is tremendous- what a wonderful wealth of information is shared!
I am NOT trying to stir up trouble here as I am very thankful for modeling
software like EZNEC. But I'm hoping that the accuracy of modeling software
will continue to improve.
RadioIR (below) states how EZNEC is not always accurate.
A few weeks ago, I posted an e-mail on how in dozens of side by side
comparisons my single 40-m. 1/4 wave vertical near saltwater worked at
least
as
well, if not better, than a new Cushcraft XM-240 Shorty-Forty at 90' in all
directions the vertical looks over saltwater: Europe, Africa, and South
America.
Computer modeling indicated that the Shorty Forty should have about a 10dB
advantage over the vertical with saltwater. (and the vertical has a
minimal
radial system: two 1/4 radials and a single 2" copper strap saltwater)
My hope is that more actual side by side antenna comparison information can
be used to improve modeling accuracy.
73,
Dick- K9OM
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