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Eddie, when we say .75wave or .82wave we are guestimating the antennas electrical length,

its not a piece of wire in free space, its a fat fast taper tube who's electrical length is determined not only by its own electrical characteristics in isolation,
but also by the radial sleeve around the lower 1/4wave which electrically shortens the radiator/raises the radiators resonant frequency,

an electrical .75wave will be physically longer than you expect with this antenna,
how much longer i don't know,

it could be that the best length is .75wave electrical, you just end up longer with a tape measure.

[QUOTE="bob85, post: 709859, member: 18"] Eddie, when we say .75wave or .82wave we are guestimating the antennas electrical length, its not a piece of wire in free space, its a fat fast taper tube who's electrical length is determined not only by its own electrical characteristics in isolation, but also by the radial sleeve around the lower 1/4wave which electrically shortens the radiator/raises the radiators resonant frequency, an electrical .75wave will be physically longer than you expect with this antenna, how much longer i don't know, it could be that the best length is .75wave electrical, you just end up longer with a tape measure. [/QUOTE]

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