Cecil Moore wrote:

Reg Edwards wrote:

Roy wrote -
If you have some other "rho" you want to
argue about, please call it something else.

- - - and while you are about it change the name of
the SWR meter.

Trouble is, (Z2-Z1)/(Z2+Z1) is not always equal to Sqrt(Pref/Pfwd)
What then?

The equality was always iffy when you don't take the absolute value.
But once you do, the equality may hold depending on the equations
you use to derive Pref and Pfwd.

Whether Pref or Pfwd represent something physically meaningful is
another question, also dependent on how you derive them.

....Keith