Dave Shrader wrote:
However, I don't know of any Yagi, Quad, 4-square, that with 100 watts
into the antenna and 100 watts radiated, assuming 100% efficiency, has
any gain!! It has directivity!!

Hey Dave, crack out your trusty IEEE Dictionary and reference their
definition of gain. It's not the same as yours. According to the IEEE
and Balanis, the only difference between directivity and gain is the
antenna efficiency. A 100% efficient antenna would have gain equal to
directivity. Sorry, that's the definition.
--
73, Cecil, W5DXP




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