On May 19, 12:53*pm, John KD5YI wrote:
In that case I have no need of S11 or reflections or light. I only need
to know that the Smith chart tells me that a 200 ohm load looks like a
50 ohm load through a 1/4WL-100 ohm line.

Well there you go - my point exactly - it "looks like" but appearances
can be deceiving. You and I know that they are not identical because
we are smarter than the average bear and the IEEE has different
definitions for those two radically different kinds of impedances. We
know that it is a virtual image of 50 ohms because no 50 ohm resistor
exists in reality and no zero reflection coefficient exists in
reality. In mathematical terms, there is no one to one correspondence
between a 50 ohm dummy load and a 50 ohm antenna.
--
73, Cecil, w5dxp.com