AI4QJ wrote:
"Roy Lewallen" wrote in message
...
Or why "virtually no phase information" exists in it. A periodic waveform
with no phase information? Huh?


Or do you mean that the amplitude of the standing wave does contain phase
information about phase 2 other waves, the forward and reflected waves,
relative to each other? Is that what you are saying (making this a semantic
issue again)? The standing wave itself is at zero phase angle.

Hopefully my other posting has mostly answered this.

The total current is the sum of forward and reflected waves. The
magnitude of this total has a periodic distribution, or envelope, alsong
the length of the line known as a standing wave. You can learn certain
things about the line and load by looking at the magnitude and position
of this envelope. The position of the envelope can very reasonably be
termed its "phase", although like the envelope making up the "wave",
it's a positional phase rather than a time related one. But neither the
amplitude nor the "phase" of the envelope known as the standing wave
will, by itself, tell you anything about the phase of the current at any
point along the line.

Confusion among the wave-like envelope of the standing wave, moving
traveling waves, positional and time related phase, and other
potentially ambiguous terms has been instrumental in sustaining
confusion about issues that aren't really very complicated.

Roy Lewallen, W7EL