"Cecil Moore" wrote in message
...
Reg Edwards wrote:

Anybody who doesn't agree that

rho = ( ZL - Zo ) / ( ZL + Zo )

means something can depart forthwith and forever hold their peace.

source----50 ohm feedline---+---150 ohm feedline---load

What is rho at point '+'? What is s11 at point 'x'?

rho can't be computed unless you know what the load impedance is, and what
the length of the 150 ohm line is in wavelengths.

and no one but you cares what s11 is.