I am working with models of the Force 12 C-3, trying to model stacks and
their potential interaction with guy wires and wire low-band arrays.
The models I'm using include a simplified monotaper model (7 wires) and one
based on the physical antenna (57 wires).
According to EZNEC, these can be "conservatively" run on 28 mhz with ~ 95
and 130 segments. However, I find that the gain figures, in particular,
don't start to converge until quite close to EZNEC's 500-segment limit -
the difference can be 1-1.5 dBi. This gives me real pause for the accuracy
of models using 2-3 of these antennas plus other conductors in the
vicinity, yet staying under EZNEC's ceiling.
Anyone got any advice on how I might deal with this?
Thanks!
73, Pete Smith N4ZR
n4zr@contesting.com
Don't forget to update your entry on the World Contest Station Database,
now at http://www.contesting.com/stationdatabase.htm
--
FAQ on WWW: http://www.contesting.com/antennaware-faq.html
Submissions: antennaware@contesting.com
Administrative requests: antennaware-REQUEST@contesting.com
Problems: owner-antennaware@contesting.com
|