On May 7, 7:51*am, Cecil Moore wrote:
Tom Donaly wrote:
Meaning you don't want anyone to disagree with you.

What I invite is someone disagreeing with me about
a 75m Texas Bugcatcher coil along with some technical
proof that I am wrong. All I have gotten so far is
ad hominem attacks. Where's the beef?

Dr. Corum's empirically-based equations do not work
for toroidal inductors so they are outside the scope
of my discussion. Why not discuss the most common
large air-core coils used for loading 75m mobile
antennas?

No he wouldn't. You don't know what he would have measured.

I have exactly the same coil that Tom used for his
"measurements". I have measured the traveling wave
delay through the coil by loading it with a 5k
resistor to eliminate reflections. I do know what
he would measure if he would only run the experiment
correctly. You could do it too if you so chose. x and
y are the current sample points.

source---x-Tom's coil-y--5k load
* *+-------------------------+

Maxwell's equations don't say anything about "slow-wave
structures."

If you are saying that Maxwell's equations are invalid
for slow-wave structures, your argument is with Ramo,
Whinnery, and Dr. Corum, not with me.

http://www.w8ji.com/agreeing_measurements.htm

"As described in my posting on rraa of November 11,
the inductor 'replaces' about 33 electrical degrees
of the antenna."

Are you sure that isn't a quote from Reg Edwards, whose ideas
you stole in the first place?

You are free to access the above web page to see who
wrote it. If Dr. Corum stole Reg's ideas, he should
have given him the credit. Dr. Corum does provide
50 references for his paper but Reg is not one of them.
However, here is a partial list:
7. J. D. Kraus, "Antennas"
19. F. E. Terman, "Resonant Lines in Radio Circuits"
23. J. D. Ryder, "Networks, Lines, and Fields"
29. S. Ramo and J. R. Whinnery, "Fields and Waves in Modern Radio"
30. R. W. P. King, "Electromagnetic Engineering"
43. M. Born and E. Wolf, "Principles of Optics"
--
73, Cecil, IEEE, OOTC, *http://www.w5dxp.com

I agree whole heartedly. Maxwell never included slow waves which is a
result of lumped loads. Maxwell equations studies have been rigorous
with respect to accounting for all forces involved in radiation for
maximum efficiency. It stands to reason then that for efficiency a
load is not valid. Thus Reg was correct in seeing a transmission line
as an antenna with just distributed loads when the length is in terms
of a WL i.e. in equilibrium. Thus Kraus's antennas are not in
equilibrium and thus deviated away from Maxwell's laws. Same goes for
Corum ! And Ramo still talks of waves so he is in the same bracket.
All electrical engineering turns topsey turvey
when engineers are forced to consider particles instead of waves and I
will be the leader of that change that will stop CERN in its tracks
Art