I have spent a fair amount of time reading a few of the Moxon construction
articles about the modified Moxon for 40 meters. I have a spare 6 element 20
meter Telrex monobander for 20 meters in my barn. Doing some scratching on
paper, it looks like I could build two, two element Moxons for 40 using the
material in that yagi. I would need to buy the tubing necessary to build the
Tee sections on the end.
Since all of the element diameters and taper schedules would be different, I
should model it. I have the Antenna Model Software package. I haven’t used it
much. I haven’t modeled antennas in over 15 years. I used to use K6STI
software when I did and I loved it. Some of the articles I have read say good
things about the Antenna Model program. I am wondering if that would be good
enough to use on the Moxon.
Now I know the Moxon doesn’t model well. The W6NL version is the standard and
the best advice is to build it like that. But I have all this beautiful
aluminum that I don’t want to waste. Plus, the 3 1/2 inch boom on the T-rex is
really stout enough to handle this antenna. At least one article says they
wish they had used a larger boom diameter.
I suppose a good plan would be to model the W6NL and then my version on the
same software and adjust my version until the results matched those obtained
with the W6NL. The question is .. Is the Antenna Model package adequate for
the job?
A really good answer would be that someone has already modeled the W6NL on
Antenna Model and would share the file with me. :-)
Thanks,
Dave, K4TO
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