Cecil Moore wrote:

wrote:
It was stipulated in the original post that the swr was being
measured at the source end for the 50 ohm line. If all one changes is
the impedance of a 1/2 electrical wavelength line, and nothing else,
the answer is 1:1.

Nope, not if a 72 ohm SWR meter is being used. An SWR
meter calibrated for the transmission line Z0 of 72 ohms
will read 1.44:1 even if the 50 ohm transmitter is happy
with the 50+j0 ohm virtual impedance being presented to it.
I have SWR meters calibrated for 50, 75, 300, 450, and 600
ohms - doesn't everybody?

Please note that it was ***NOT*** stipulated in the original
post that the SWR meter was calibrated for 50 ohms. "What is
the SWR?" was the question.
--
73, Cecil http://www.qsl.net/w5dxp


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