W5DXP wrote:

http://www.gmi.edu/~drussell/Demos/s....html#standing

Another web page which correctly uses superposition only for amplitude;
not power.

In an ideal line terminated by Zo, ...

That configuration is not covered by my statement above which
applies only to standing waves on lossless unterminated lines.

True. I had moved on to a different configuration, the one originally
being discussed.

....Keith