From: Jim Lux [mailto:email@example.com]
At 02:51 PM 5/11/2007, Peter Voelpel wrote:
>>Those figures are EZNEC simulated
The figures given by Optibeam on their homepage
>In general, decent NEC models of different antennas should be
intercomparable. "decent" being the operative word.. It
>takes a fair amount of skill and work to generate good models, especially
if there are tapered elements, traps, or lumped >components. The other
thing that will definitely be an issue for a model is anything where the
feedline or other stuff
>is part of the antenna, whether deliberately or not.
>But, for comparisons of run of the mill Yagi-Uda arrays, with attention to
segmentation and such, one should be able to
>get comparative data within 1/2 dB or so.
Try to convince Steve.
Seems he is not a believing in antenna simulation.
But I don´t believe in gain figures which are not measured in the main lobe
>[mailto:firstname.lastname@example.org] On Behalf Of K7LXC@aol.com
> Currently Force 12 and SteppIR are the only manufacturers that
>use our protocol to produce useful comparable performance figures. If
>Optibeam figures were produced similarly, then I'd be more inclined to
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