On Sat, 4 Oct 2003 19:49:19 +0000 (UTC), "Reg Edwards"
wrote:

SWR meters are designed to operate and provide indications of SWR, Rho,
Fwd
Power, Refl.Power, on the ASSUMPTION that the internal impedance of the
transmitter is 50 ohms.

Reg, G4FGQ

Well, Reg, the reason I asked for an expression that includes the source
resistance in measuring SWR is that you said above that the internal impedance
of the transmitter is ASSUMED to be 50 ohms. This implies that the SWR is
dependent on the internal impedance of the source, does it not ?

AsI have understood Richard C., he also asserts that SWR is dependent the
internal impedance of the source.

This concept is foreign to me, so if I'm wrong I'd like to have some proof that
the source impedance can have any influence on SWR.

Walt