Richard Clark wrote:
But, again, this discussion is generally reserved only for those
interested in accuracy. :-)

Like I say, my solution is to block any reflections from being
incident upon the source. But I have a question. Since we are
discussing coherent sine waves, it seems to me that any reflection
from the source impedance will become indistinguishable from the
generated wave. In fact, the present convention of generated power
equals forward power minus reflected power is designed to overcome
that very problem.
--
73, Cecil, W5DXP