> Sure, but that was precisely my point. No point in optimizing for
> super-deep F/R nulls, particularly if the trade-off is gain bandwidth
> or SWR bandwidth (or F/R bandwidth for that matter). I'm not talking
> about octaves, of course -- just enough to cover an entire ham band
> with acceptable performance in all 3 dimensions. The OWA yagi and
> designs like W3LPL's 5-element yagi on 4 elements worth of boomlength
> are good examples of how that can be achieved without relays or other
> unreliable mechanical devices.
A point was made that yagis with single reflectors have maximum
F/R ratio's in the order of 20-25 dB (or something similar), and I
simply pointed out that isn't factual and gave an example of an
antenna that happens to have a F/R ratio much higher than that.
I'm not the person who claimed to have a yagi that covers the
whole band with flat and reasonable impedance, high gain, and a
wide deep null (by virtue of adding two extra reflectors).
Please don't get me involved with those claims!
73, Tom W8JI
w8ji@contesting.com
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