Peter wrote:
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
Peter
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Hi All
Well, I've never modeled an antenna that I have built and they all seem to
work. I guess maybe if I bought a modeling program and ran it, I'd get a db
or better gain, or maybe a little better FB. Or it may tell me that it
won't work. I usually just put up an antenna and if it works, leave it up.
If it doesn't work, I build something else.
What is someone supposed to do if they have a beam that has been up for 20
years that they have worked 300 countries with, then find out that the model
says it won't work, or it has 'negative gain'?
I had a TH-3 here at one time. Dunno what the modeling says about it, but I
didn't like it. I took it down and built a 2 element 20 meter monobander
out of it and it has worked like gangbusters. Much better than the TH-3
did. I just put it on a quarter wave boom, split the driven element, fed it
through a coax balun, made the reflector 5% longer and put it up. Worked so
good I made a 10 meter beam the same way.
Don't know what the model says about it, but don't care :-). As long as it
works, it's fine with me. YMMV 73
Tom W7WHY
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