"This is a ridiculous claim. How can it be noticeably better than a 4el 10m
yagi on a 16' boom or a 3 el 20m yagi (like a Hy-Gain 203BA) on a 16' boom?"
Noticeably? I dunno.
However, it could be better because you can relax the requirement that
it perform acceptably over a whole ham band for one set of element
You can go for max gain, max F/B, or the compromise of the two however
you like without having to worry that optimization on 14.015MHz will
make the pattern junk at 14.250MHz.
I don't know how much of a practical difference that ends up making.
Someone who has designed more yagis might comment... I think it
matters quite a bit in some instances.
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