Roy Lewallen wrote:

Only you could take such a simple concept as power loss in a two port
device and muddle it with bouncing waves of average power.

I didn't explicitly give the loss in dB because I thought that you would
be able to do it yourself. You seem to be able to, but for some reason
regard it as some kind of major operation. I don't know how you do it,
but here's how I do.

From my previous posting, the power into the line is 50 watts and the
power out is 25 watts.

I think the source of part of the confusion here is that some people
apparently interpret the 'forward power' reading on their meter to mean
the power into their transmission line.

The confusion I think stems from the contention that any 'reflected
power' (unfortunate nomenclature IMO) is first sourced and then after
reflection returned back into the source, or to a circulator load as the
case may be. The latter case is certainly correct. The former is
phenomenologically problematic.

73, Jim AC6XG