Keith Dysart wrote:
So, when you are presented with 43.6 degrees of
600 ohm line connected to a black box (about
which you know nothing of the internals) which
provides an impedance -j567, do you answer the
question: What is the impedance at the input
of the 600 ohm line? Or do you refuse, because
you do not know what phase change is
occuring at the terminals?

I'm not sure I understand the question. Measuring
the s22 parameter should be all we need to know.
--
73, Cecil http://www.w5dxp.com