RadioBanter - View Single Post

March 7th 06, 09:13 PM posted to rec.radio.amateur.antenna

wrote:
I think it would be better if Walt represented himself, unless he ASKED
you to post that Cecil.

Walt isn't presently posting for reasons of his own.
He certainly gave me permission to quote his email. I
will ask him if he wants to defend his statements here.

If Walt has something to say, I'm sure he will chime in.

I'm sure he will if he feels so inclined.

Drumming up support by writing what we **think** others say or mean
seems pretty desperate.

Those were Walt's words, not mine. (Your statement reeks of
desperation, i.e. "Please don't quote any authorities who
disagree with me.")

All reliable measurements I've seen disagree with Cecil's theory.

Simply not true, Tom, proving once again that you don't understand
what I am saying. My "theory" explains exactly why neither you
nor W7EL could get the current at the ends of the coil to be
equal without creating a current maximum point inside the coil.

If you would just take time to understand what I am saying,
you wouldn't need to utter falsehoods about what I am saying.

The standing wave net current at each end of the coil is indeed
the same magnitude if a current maximum or current minimum point
is located inside the coil.

Walter Maxwell says: "When reflections are present, a current node
and a current loop can appear at separate points on an inductor
simultaneously." Does that sound like constant net current through
a coil? Exactly what is it about Walt's statement that you don't
understand?

I can't believe anyone with experience in RF systems would think a
physically small inductor (small in terms of wavelength) would have
significantly unequal currents in the inductor or in the terminals of
the inductor, especially any difference caused by "reflected waves".

A 75m bugcatcher coil is about 0.2% of a wavelength and so qualifies
as "physically small". The current at each end of that coil used
with an eight foot whip is nowhere near equal. I cannot believe
that anyone with experience in RF systems could utter such nonsense.
(That logic is a double-edged sword.)

I think you and others simply didn't realize that the current in
a 75m mobile bugcatcher system is almost 100% a standing wave
current and now you guys are desperately trying to cover up your
mistake. Others have stopped responding instead of admitting their
mistake. So I ask you again: How do you explain the flow of a current
whose phase is unchanging (fixed at zero degrees in a thin wire
dipole). Doesn't it take a rotating phasor for current to flow?
That's a simple yes/no question. What do you want to bet that it
goes unanswered?

Incidentally, I posted a little questionaire a couple of days ago.
The response to that questionaire has been zero. Why do you reckon
all the gurus are afraid to respond?
--
73, Cecil http://www.qsl.net/w5dxp