The best practice is to quote how many elements and the length of the
boom. A 204BA is about 26' with 4 elements. It would hardly compare
to a W2PV 4 element 20 meter yagi.
The same thing can be said of the OWA designs. The close spaced first
director does nothing for the gain. It only helps with F/B over a wide
frequency range and bandwidth.
73
Bill
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