Reg Edwards wrote:
In all these sort of discussions I have never heard any mention of
"Interaction Loss", ie., that which occurs directly between the reflection
coefficients of the source and load.

It seems something important has long been and is still being neglected. It
may be that some points of dispute could be resolved by taking Interaction
Loss into account.

We usually discuss Z0-matched systems. In a Z0-matched system,
the reflection coefficients at the two reflection points are
equal in magnitude and opposite in sign. If no reflections are
allowed to reach the source, there is zero "Interaction Loss".
--
73, Cecil, W5DXP