On Mar 21, 12:08 pm, (Richard Harrison)
wrote:
Keith wrote:

"For some years now, you have been arguing the reality of "reverse
power".

For good reason. You feed a transmission line into an open circuit at
its far end, and the power arriving at the open has no where to go but
to return towards its generator. What happens at the generator upon
arrival of the power reflected from the mismatched load depends on the
vector values of incident and reflected waves as well as the impedance
of the generator.

Searching the net for "reflected r-f power" returned over 25,000
examples. Belief in reverse power is obviously common.

Best regards, Richard Harrison, KB5WZI

You are certainly correct; many people believe in reflected power,
though I've
always found that to be a poor basis for my own beliefs.

You have also provided the classic example where the numerology works
and 'reverse power' offers a tidy explanation. I am sure this neat
example is
the basis for many people's belief.

What drove me to look at alternate explanations for these kinds of
examples
was that the 'reverse power' explanation fails miserably when the
power
gets back to the generator. Having another explanation for this
classic
example lets one let go of 'reverse power' which solves the challenges
at the
generator end. When 'reverse power' is not real, the question of where
it
goes becomes irrelevant.

....Keith