On Sat, 17 Mar 2007 21:17:00 -0500, Mike Coslo
wrote:

Your argument makes it sound as if the OCF has identical performance at
those same points as a frequency cut dipole.

Hi Mike,

Well, there are two "performances" to consider (and not just the
matinee and the evening show).

Resonance or not, there are
bands for which I still need a tuner, which makes the whole purpose a
little moot.

For that, the tuner will be called to perform different chores for
different bands for different offsets. However, the resonances will
fall principally at the same frequencies.

The SWR curve of the OCF really doesn't look all that hot,
sometimes it is just passable at the frequencies of interest,and looks
better off frequency.

Much the same could be said for any garden variety dipole.

and it looks like something a radio with a *good*
autotuner could take care of.


Much the same could be said for any garden variety dipole.

That has been my experience with them.
Sure seems like a compromise to me. YMMV.

Much the same could be said for any garden variety dipole.

The two performances would be tune-up and launch characteristics. If
modeling is any indication, the offset affects the magnitude of the R
at resonance (again, no different an experiance comparing a normally
fed half-wave dipole to an end-fed half-wave dipole). However, the
gain, number of nulls (or lobes) does vary at the higher frequencies
when offset is added to the variables. Higher gains for the near
end-fed (albeit 1dB).

73's
Richard Clark, KB7QHC