[Antennaware] plot comparisons - addition

K9AY k9ay at k9ay.com
Thu Nov 12 11:55:52 PST 2009


EZNEC does this automatically if you recall a saved trace and add it to the 
current trace.  If you are overlaying exported bitmap files in a graphics 
program, choose a fixed outer ring value in the 'Desc Options' setup.


>I should have added that I am using EZNEC+  V5
> 73,
> Dave
> This question is a long shot, but knowing the resourcefulness of the
> group I thought I would ask anyway..
> I am doing some comparisons of various receive antennas, some of
> which have very different gains.  I am overlaying different plot
> files to compare the patterns, especially the pattern off the back.
> This has been quite difficult on occasions because of the big gain 
> differences.
> I wondered if there was a way to "normalise"  the gain of two plots
> so as to be able to get an easier comparison?  Another way of saying
> it would be to able to make the gain of the outer rings of two plots 
> identical?
> Is it possible or are there any other techniques to simplify the 
> comparisons?
> Thanks for any ideas.
> 73,
> Dave, G3UEG
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