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Cecil Moore March 17th 06 07:59 PM

Current through coils
 
wrote:
Roy measured a real antenna for phase, I measured a moblile antenna for
current.


Not sure what this means. Are you distancing yourself from
Roy's phase measurements?
--
73, Cecil
http://www.qsl.net/w5dxp

Roy Lewallen March 17th 06 11:23 PM

Current through coils
 
wrote:

Roy measured a real antenna for phase, I measured a moblile antenna for
current.

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

Actually, I measured both phase and amplitude of the current at both
ends of a toroidal inductor. It was measured at the base of a shortened
vertical antenna, and also on the bench with the antenna replaced by
lumped components having the same impedance as the antenna. The results
were published in the October 2003 thread on this newsgroup.

Roy Lewallen, W7EL

Richard Harrison March 18th 06 05:17 PM

Current through coils
 
This thread ran almost as long as "47KW CB mobile, was CW =
Engineer?"

Not sure which holds the duration record.

Cheers, Richard Harrison, KB5WZI


David G. Nagel March 18th 06 06:15 PM

Current through coils
 
Richard Harrison wrote:
This thread ran almost as long as "47KW CB mobile, was CW =
Engineer?"

Not sure which holds the duration record.

Cheers, Richard Harrison, KB5WZI

I counted almost 500 entries. Cecil had almost 25% of them.

Dave N

Cecil Moore March 18th 06 06:41 PM

Current through coils
 
David G. Nagel wrote:
I counted almost 500 entries. Cecil had almost 25% of them.


I kicked it off with "Current in loading coils". Reg then
responded with "Current through coils" and the rest is
history. When one is up against most of the r.r.a.a gurus,
all at the same time, one needs to make a lot of postings.
--
73, Cecil http://www.qsl.net/w5dxp

Reg Edwards March 18th 06 07:23 PM

Current through coils
 
I counted almost 500 entries. Cecil had almost 25% of them.

Dave N

===================================

- - - and I get the impression nobody learned anything!

Problems should be handed over to the sewer rats in Rio de Janerio to
sort out, rather than culling them.
----
Reg.



Cecil Moore March 18th 06 07:57 PM

Current through coils
 
Reg Edwards wrote:
- - - and I get the impression nobody learned anything!


You think nobody learned anything from the fact that
measuring standing wave current phase is meaningless?
If nobody learned anything, they would no doubt still
be contributing to the technical discussion.

Here's what I think happened. Person A and Person B
engage in an argument and both are wrong. Person A
believes he cannot possibly be wrong so he digs in and
argues his rigid position. Person B realizes that he may
be wrong and uses the scientific method to fine tune his
argument thus correcting any errors along the way.

Which person has the advantage and is likely to win
the argument?
--
73, Cecil http://www.qsl.net/w5dxp

Jerry Martes March 18th 06 08:44 PM

Current through coils
 

"Cecil Moore" wrote in message
et...
Reg Edwards wrote:
- - - and I get the impression nobody learned anything!


You think nobody learned anything from the fact that
measuring standing wave current phase is meaningless?
If nobody learned anything, they would no doubt still
be contributing to the technical discussion.

Here's what I think happened. Person A and Person B
engage in an argument and both are wrong. Person A
believes he cannot possibly be wrong so he digs in and
argues his rigid position. Person B realizes that he may
be wrong and uses the scientific method to fine tune his
argument thus correcting any errors along the way.

Which person has the advantage and is likely to win
the argument?
--
73, Cecil http://www.qsl.net/w5dxp



Hi Cecil

I've read more than 80% of the posts in this thread. I still dont
understand the objective. BUT, I sure have learned a few things, thanks to
you guys who do what is being soughtafter.

Jerry



Reg Edwards March 18th 06 09:07 PM

Current through coils
 

Hi Cecil

I've read more than 80% of the posts in this thread. I still

dont
understand the objective. BUT, I sure have learned a few things,

thanks to
you guys who do what is being soughtafter.

Jerry

=======================================

Ah, but how do you know you learned the RIGHT things? Or what you
learned was true and correct?

The participants in the argument NEVER agreed on ANYTHING. So what can
bystanders do?

I learned far more about people than I did about current through
coils. Quite interesting nevertheless.
----
Reg, G4FGQ.



Gary Schafer March 18th 06 09:14 PM

Current through coils
 
On Sat, 18 Mar 2006 19:57:32 GMT, Cecil Moore
wrote:

Reg Edwards wrote:
- - - and I get the impression nobody learned anything!


You think nobody learned anything from the fact that
measuring standing wave current phase is meaningless?
If nobody learned anything, they would no doubt still
be contributing to the technical discussion.

Here's what I think happened. Person A and Person B
engage in an argument and both are wrong. Person A
believes he cannot possibly be wrong so he digs in and
argues his rigid position. Person B realizes that he may
be wrong and uses the scientific method to fine tune his
argument thus correcting any errors along the way.

Which person has the advantage and is likely to win
the argument?



I tried learning something. I didn't get to read the whole thread so
may have missed the important part?

When the measurements of the coil were done on the bench it seems that
it was done with 50 ohms in and 50 ohms out. That hardly seems like it
would give the same information as when the coil was in actual use as
an antenna loading coil.

Rather than a 50 ohm load how about if a load was placed at the end of
the coil to simulate the antenna, a resistor and capacitor to take the
place of the antenna impedance and reactance. Then measure the current
in and out and the phase shift.

73
Gary K4FMX



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