Nope. 234 would be used to calculate half of a dipole or
perhaps the radiator for a ground plane. That's because
these antennas don't resonate on the desired frequency when
cut to a free space half or quarter wavelength. I'll leave
the *reason* for that to someone else, as I haven't thought
about that stuff for a long time.
To calculate a free space wavelength it's 984/f (492 for
half wavelength, 246 for quarter wavelength). Then the VF
needs to be taken into account. These are the correct
numbers for calculating coax lengths.
Paul
On Wednesday 29 September 2004 03:07 am, Benjamin Naber
wrote:
> isn't it:
>
> x[ft]=234/F[MHz] Then: x[ft]*Vf?
>
>
> NOT 2 fourty-six/F[MHz]
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