Cecil Moore wrote:
We are talking about 75m bugcatcher coils, Tom, not one special
case coil engineered by you. If your assertions fail for a 75m
bugcatcher coil, then they fail in reality. You assertions have
to be valid for all cases or else they are invalid. Finding one
special case that agrees with your assertions, e.g. your previous
toroidal coil measurement, may boost your ego but doesn't really
matter one iota in the overall scheme of technical fact.
--
73, Cecil http://www.qsl.net/w5dxp

Actually that statement proves YOUR theory wrong Cecil, not mine.

I'm saying that in an antenna of fixed length with a fixed coil
location on a given frequency, I can change ONLY the coil design, still
maintain resonance, and have phase delay of current change
significantly.

YOU are the one who appears to be saying all coils and stubs are equal
within a small range.

The theory I believe to be correct is the capacitance from the inductor
to the rest of the world compared to termination impedance determines
phase shift in current and current taper. What is it you think
determines current phase shift at each end and current taper?

Explain the logic behind your idea in a way that makes the toroid work,
or a compact equal form factor inductor have very low phase shift
compared to an entire helice.

My example works in every case. Your's fails, and you cannot just toss
out the obvious disagreement and expect people to take you seriously.

73 Tom

On 29 Apr 2006 09:47:25 -0700, wrote:

What is it you think
determines current phase shift at each end and current taper?

GROAN....

wrote:
I'm saying that in an antenna of fixed length with a fixed coil
location on a given frequency, I can change ONLY the coil design, still
maintain resonance, and have phase delay of current change
significantly.

So can I - so what? It's the same thing as changing the Z0
of one of the pieces of feedline in my two-Z0 stub example.
No coil is required, indicating once again that your misconception
involves standing waves, not coils.

IMO, you are never going to understand this topic until you
take time out to understand standing waves.

What is it you think
determines current phase shift at each end and current taper?

I explained that at the start of the argument two years ago
and it has been posted on my web page ever since then.

http://www.qsl.net/w5dxp/current.htm

Scroll down to:
"Why the Net Current is not Constant Through a Loading Coil"

My example works in every case.

No it doesn't. Your own current measurements prove that the
current is *NOT* equal at both ends of a coil (and your
phase measurements were invalid). Only one special case toroid
showed the currents at the ends of the coil to be equal. All
the other cases proved that the currents are *NOT* equal.

As Gene Fuller said, the standing wave current phase information
is contained in the magnitude. With a current of 2.0 amps at one
end of the coil and a current of 1.414 amps at the other end of
the coil, it exactly matches the example on my web page. One of
your measurements was very close to 1 amp at one end and 0.7 amps
at the other end. It fits perfectly.
--
73, Cecil http://www.qsl.net/w5dxp

Cecil Moore wrote:
wrote:
I'm saying that in an antenna of fixed length with a fixed coil
location on a given frequency, I can change ONLY the coil design, still
maintain resonance, and have phase delay of current change
significantly.

So can I - so what? It's the same thing as changing the Z0
of one of the pieces of feedline in my two-Z0 stub example.
No coil is required, indicating once again that your misconception
involves standing waves, not coils.

Now Cecil, get serious.

We all know a stub has distributed capacitance and distributed
inductance. We all know an inductor has the same thing. We can solve
the problem equally well using a network of distributed components as
many others have shown.

IMO, you are never going to understand this topic until you
take time out to understand standing waves.

Well, I could say the same to you about coils and capacitors. :-)

What is it you think
determines current phase shift at each end and current taper?

I explained that at the start of the argument two years ago
and it has been posted on my web page ever since then.

So you don't want to say, or can't say in a few words?

73 Tom

wrote:
So you don't want to say, or can't say in a few words?

I know one of your tactics used to "win" an argument is
to wear the opponent down to a nub where it is not worth
the effort to continue even when he is right and you are
wrong. I'm not going to play your silly game. All the
information is there on my web page at:

http://www.qsl.net/w5dxp/current.htm
--
73, Cecil http://www.qsl.net/w5dxp

On 29 Apr 2006 14:17:20 -0700, wrote:

So you don't want to say, or can't say in a few words?

GROAN