On Dec 9, 10:14 pm, Cecil Moore wrote:
I'm disappointed in you, Keith. You appeared to be
a reasonably intelligent person.

Thank you. And I continue to be so.

Now that you have apparently performed my suggested
experiment

There is no evidence that I have performed the experiment.
The need for current probes probably means that I will not
be doing so, though you never know. Rest assured that
should I do so, results will be published.

and know that I am right, you try to tuck your tail
and run.

Ahhh, your favourite accusation. You play the game
of last man standing, and when everyone has left
the field (in this case because you had nothing
further technical to add), you convince yourself
that it is because you must be right, and they
must know it. I can't decide if this logic is
more amusing or sad.

Now if you want to recover, make some better
attempts to write the rule. Look back through
the posts for your sentences that begin with
"Can we agree that", or some such. These
were your attempts at a rule. Complete them
to the point that we agree that they are self
consistent and accurately convey your
definition and we will have gotten somewhere.

Your later attempts, which amount to "I
know it when I see it", were not nearly as
good as your earlier ones.

....Keith

Keith Dysart wrote:
Now if you want to recover, make some better
attempts to write the rule. Look back through
the posts for your sentences that begin with
"Can we agree that", or some such. These
were your attempts at a rule. Complete them
to the point that we agree that they are self
consistent and accurately convey your
definition and we will have gotten somewhere.

What is it that you need a rule for? Is it the
electrical length of a stub?

The stub is electrically half as long as the phase
shift undergone by the reflected wave during its
round trip to the open or shorted end and
back to the feedpoint.

If that phase shift in a dual-Z0 stub is the same
as the phase shift in a single-Z0 stub at the same
frequency, the two stubs are the same electrical
length at that frequency.
--
73, Cecil http://www.w5dxp.com