Keith Dysart wrote:
You implied that you were going to compute it
using just rho, which would mean it would be
constant for any pair of impedances.

No, I did not. Rho can be constant but the phase
angle of the incident voltage changes with
position. Therefore, the phase angle of the
reflected voltage changes with position.

This subject is already covered in my energy
analysis article at:

http://www.w5dxp.com/energy.htm
--
73, Cecil http://www.w5dxp.com