Richard Harrison wrote:

Dave wrote:
"You don`t even need reflections. A properly terminated piece of wire
has a different current at every point along the wire."

Instantaneous values, of course. But, proper termination means no
reflection. The only source of variation along a line other than
attenuation is reflection.

The only electromagnetic currents 'flowing' on a transmission line are
the currents which result from the reflected and/or the forward
electromagnetic waves. Neither of these currents varies periodically
along the line (except as noted, instantaneously).

73, ac6xg