Keith Dysart wrote:
I offer you the same challenge as Cecil, find the error in my
analysis and then compute the correct amount of re-reflection.

We will be glad to do that if you will provide the
impedance value encountered by the reflected wave
with the source turned on. You have not yet done that.
Hint: It doesn't matter what impedance the reflected
wave encounters with the source turned off since
reflected waves are non-existent during that
condition.
--
73, Cecil http://www.w5dxp.com