On 11/29/2010 06:08 PM, jimlux wrote:
> that program has just the flaw I was describing. Since it doesn't ask
> whether the mismatch is lowZ or highZ, for a length of coax shorter than
> a half wavelength, you don't know whether you are running the coax at
> high current (more loss) or low current (less loss).
I guess it was early - that point escaped me :)
Now, does 24 +j60 count as a high or a low Z, compared
to 50 ohm coax? The total magnitude on the smith chart
is larger than 50 ohms, but the resistive part of the
impedance is smaller...
I suspect the feedline will be around 1/4 wavelength long
on 160, give or take a few dozen feet...
--
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