Jim Kelley wrote:


Cecil Moore wrote:
For that statement, the length of the feedline is unknown
and the load is unknown.

I was commenting on this, the subject of our conversation:

My statement that you objected to didn't have anything to
do with the following.

"Consider the following:

Source---50 ohm feedline---+---1/2WL 150 ohm---50 ohm load"

Reflection coefficients are determined by characteristic impedances, not
virtual ones.

On the contrary, the reflection coefficient, rho, at '+' in
the example above, is NOT determined by the characteristic
impedances. Above, rho (looking at '+' from the left) is determined
by taking the square root of (Pref/Pfwd) = 0. (150-50)/(150+50) is
NOT rho. I was mistaken to call that quantity "rho" in my article.
That quantity that I called "rho" is actually 's11' and I need to
update my article.
--
73, Cecil, W5DXP