Gaussian statics law
 

Jimmie D wrote:

I f this were a hospital you couldnt distinguish the doctors from the
patients.. LMAO

Jimmie

If you are implying that Richard is incorrect in his statements and that
Art has even a tiny clue about reality, you are sadly mistaken.

You should study a bit about the subject before you criticize the
"Doctors".

tom
K0TAR



Not what I am implying at all, that wouldnt be funny. I only wish I knew as
much about antennas as Richard.

I only recently obtained copies of books by Krauss and Terman and have begin
to intensify my studies of the subject.

While on the subject, I obtained my first class FCC license in 73 and the
material in Terman seems to fit very closly with the study material I had.
Is there a connection between the test and Terman's book?

Jimmie



Well, then I won't comment anymore. Did you buy the license?

tom
K0TAR

Gaussian statics law
 

"Tom Ring" wrote in message
. ..
Jimmie D wrote:

I f this were a hospital you couldnt distinguish the doctors from the
patients.. LMAO

Jimmie

If you are implying that Richard is incorrect in his statements and that
Art has even a tiny clue about reality, you are sadly mistaken.

You should study a bit about the subject before you criticize the
"Doctors".

tom
K0TAR



Not what I am implying at all, that wouldnt be funny. I only wish I knew
as much about antennas as Richard.

I only recently obtained copies of books by Krauss and Terman and have
begin to intensify my studies of the subject.

While on the subject, I obtained my first class FCC license in 73 and the
material in Terman seems to fit very closly with the study material I
had.
Is there a connection between the test and Terman's book?

Jimmie

Well, then I won't comment anymore. Did you buy the license?

tom
K0TAR

No I wish I had had the book then, I took a course(before Bash) at the time
that also seemed to follow Terman. When I went up to Atlanta to take thes
test I only thought I was giong to take the parts for the second class
license and passed the test for first class also. I felt like I didnt know
my own name when I was finished and had no clue whether or not I had passed
even the second class portion. I really didnt believe I had. Funny thing is
I have never used the license. Stiil just skiming the books but Terman seems
a little elementary now and Kraus is going to require me to bone up on my
calculus, something else I havent used since 1979. Hell I dont even know why
I am bothering, fine cooking and ballroom dancing are much more important to
me now.

Jimmie

Laws, Statisitics, Lies, and the Damned TRUTH
 

aknoweledged the undeniable truth

The technical truth will triumph in the end.

an explanational truth of Poyntings Vector.

Technical truth is the only winner here

the truth eventually will come out

Sounds like that may not be the truth

provide some new truth

obfuscation of the truth

more interested in obfuscation than in the truth

So which is the truth?

convince you of their truth

You are getting close to the truth

I'm not convinced about the truth

insisting on his truth

no equivalent can negate that physical truth ;-)

but the truth of it is

Sounds like that may not be the truth

to tell you the truth

Every statement here is a lie.

Laws, Statisitics, Lies, and the Damned TRUTH
 

Richard Clark wrote:
The technical truth will triumph in the end.
....

Richard, I can't wait to see your posting following
the triumph of the technical truth and, FYI, that's
not very far away.
--
73, Cecil http://www.w5dxp.com

Laws, Statisitics, Lies, and the Damned TRUTH
 

Richard Clark wrote:
The technical truth will triumph in the end.

As promised, here is a procedure using EZNEC that
will prove just how wrong W7EL and W8JI are about
phase shifts through loading coils.

1. Use the helical coil feature of EZNEC to generate
a 75m Texas Bugcatcher coil.

2. Using EZNEC, find the 1/4WL self-resonant frequency.

3. Load the top of the coil with its characteristic
impedance as indicated by the source's amplitude and
phase being equal to the load's amplitude and phase.
Be patient, because this is an iterative process.

4. Observe the phase shift in the current through the
coil using EZNEC's load's feature.

5. Change the frequency to the user frequency and
observe the new phase shift.
--
73, Cecil http://www.w5dxp.com

Laws, Statisitics, Lies, and the Damned TRUTH
 

Cecil Moore wrote:
3. Load the top of the coil with its characteristic
impedance as indicated by the source's amplitude and
phase being equal to the load's amplitude and phase.

Misspoke there. The load's amplitude is equal to the
sources's amplitude. The load's phase is 90 degrees
out of phase with the source's phase.
--
73, Cecil http://www.w5dxp.com

Laws, Statisitics, Lies, and the Damned TRUTH
 

I have succeeded in using EZNEC to model a coil sans
reflected current. Eliminating the reflected current
clearly shows the phase shift of the forward current
through the coil.

I modeled a 75m Texas Bugcatcher coil terminated in
its characteristic impedance of 2745 ohms at its
self-resonant frequency of 7.96 MHz which essentially
eliminated the reflected current. The 90 degree phase
shift at self-resonance is clearly visible. That EZNEC
file can be downloaded from:

http://www.qsl.net/w5dxp/coil505.EZ

Switch from 7.96 MHz to 3.8 MHz and change the load
from 2745 ohms to 1975 ohms. The phase shift through
the coil on 75m is clearly ~38 degrees.

I compiled the forward current magnitude and phase
into an EXCEL file and generated the graphics for
the self-resonant frequency of 7.96 MHz. That
file can be downloaded from:

http://www.w5dxp.com/coil505.xls
--
73, Cecil http://www.w5dxp.com

Laws, Statisitics, Lies, and the Damned TRUTH
 

Cecil Moore wrote:
I have succeeded in using EZNEC to model a coil sans
reflected current.

I've pulled together a new web page covering the subject
of the phase shift through a 75m Bugcatcher coil. It
uses EZNEC to take a look at the phase shift through
the coil after reflections through the coil have been
minimized by resistive loading.

http://www.w5dxp.com/current2.htm
--
73, Cecil http://www.w5dxp.com