Tom Donaly wrote:
I suggest you email Tom and ask him about his experiment. It doesn't
matter, though. Cecil will always argue, that, because Tom is wrong,
he, Cecil, must be right. In point of fact, Tom doesn't have to prove
Cecil wrong, ...

No, W8JI has to prove himself right since the onus of
proof is upon him for asserting the 3 ns delay through a
100 turn coil. If the delay through that 100T coil is not
3 ns, then my two-year-old assertion that the 3 ns delay
is impossible turns out to be true.

We had this out two years ago over on QRZ.com. Tom is incapable
of mistakes and therefore is incapable of changing his mind.
The same holds true for other gurus on this newsgroup.

(P.S. By now, you, and everyone else, should know that Cecil never
argues in good faith, ...

P.S. By now everyone should know that Tom Donaly attempts
to get readers to believe Big Lies about me. He and the
rest of the guru gang are more interested in saving
face than in technical facts. The 3 ns delay through a
100T coil is just one example. Reflected EM waves with
measurable voltages but zero energy content is another.
--
73, Cecil http://www.w5dxp.com

Owen Duffy wrote:
Tom did not describe any form of directional coupler that would
effectively isolate and measure the forward and reflected waves at each
of the measurement points. Such a thing would be a considerable challenge
since Zo of the equivalent line varies with frequency and he sweeps from
0.3 to 30MHz in his measurement.

Something I observed and reported more than 2 years ago
in a heated exchange over on QRZ.com.

If a simple current probe was used to sample the magnitude and phase of
the current at each end of the coil, the samples are each of the sum of
the forward and reflected current components at each point.

Something I observed and reported.

It is the nature of a low loss transmission line less than an electrical
quarter wave and terminated in a short circuit, that the phase of the
(net) current at all points on the line is almost uniform.

Something I observed and reported. I got "ploinked" by W7EL
for that observation, among others - like energy actually
existing in reflected waves. Wonder if W7EL will now "ploink"
you?

Is it any surprise that Tom's measurement of delay indicates an apparent
phase change much smaller than the value of Beta*CoilLength?

No, but it is a surprise that Tom attempts to disguise and
rationalize that measured phase change as the *delay* through
a 100 turn coil. If his measurements were correct, I could
speed up my computer bus by installing coils in series with
the data lines. :-)
--
73, Cecil http://www.w5dxp.com