EZNEC 3 is not capable of doing the necessary ground model mathematics
to adequately model your antenna. EZNEC Pro/4 shows much less variation
than you are showing. If the woods are dense, can't you just thread them
through and lay them as near to the ground as possible? My modeling shows
very little detriment (none really) over poor - moderate ground of having
them 0.0004 of a wavelength above the ground!
Bob
N4HY
-----Original Message-----
From: topband-bounces@contesting.com
[mailto:topband-bounces@contesting.com]On Behalf Of Tony Reynolds
Sent: Sunday, September 05, 2004 7:30 PM
To: topband@contesting.com
Subject: Topband: radial layout and pattern skew
Hi All,
Sorry if this has been beat to death, but I searched the archives under
radials and pattern and thousands of articles turned up at once. Way to
course of a search.
I'm working on my ground system on 160 and I'm limited by dense woods to the
north of me making radial placement almost impossible in that direction.
Modeling this in EZNEC 3 with the radials 3" off the ground shows pattern
skewing of -2 to -3db in the direction of no radials. Which would kind of
make since. Then I found this web site:
http://www.amfone.net/ECSound/K1JJ16.htm
in which item one states that this doesn't happen. Is this the case, and if
so, is the skewing from wires being to close to the ground in EZNEC?
Thanks,
Tony
KB8JVH
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