Walter Maxwell wrote:
On Sun, 30 Jul 2006 16:04:10 -0700, "Bob Agnew" wrote:
Actually, if there are reflections, the voltage and current ar NEVER in
phase.

In fact, voltage and current in the reflected wave are ALWAYS 180° out of phase,
while in the forward wave they are always in phase. Thus, along the line they
alternately add and subtract, first reinforcing and then cancelling each other
at every quarter wave, to form the standing wave.

All true, Walt, but I think we are discussing the net voltage
and net current which are in phase only every 1/4 wavelength
where the SWR circle crosses the horizontal purely resistive
line on the Smith Chart.
--
73, Cecil http://www.qsl.net/w5dxp