Cecil Moore wrote:
Forward power in the thin-film is 1.010101010101010101 watts.
Reflected power in the thin-film is 0.10101010101010101 watts.

Darn, missed a zero. Should be 0.010101010101010101 watts.
--
73, Cecil, http://www.qsl.net/w5dxp


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On Thu, 30 Jun 2005 15:47:19 -0500, Cecil Moore
wrote:
So, energy is conserved, and there is no such thing as complete
cancellation.
True for real world stuff. False for mental conceptual examples
like the one being discussed.

Hi Tor,

So, do you see by this example what I describe as the devil's in the
details? Absolute proof of complete cancellation using referenced
math, which is then abstracted to another field to prove imponderables
(mental conceptual examples).

And what purpose is served through this prostitution of citations?
That thin films completely cancel reflections? - they do not. That
optical interfaces exhibit complete transmission? - they do not. What
makes the proofs of these unproven phenomenon necessary such as to
dismiss the correct answers? Dare we follow the thread of a suspect
theory to arrive at other, equally flawed steps along the way?

73's
Richard Clark, KB7QHC

On Thu, 30 Jun 2005 15:52:23 -0500, Cecil Moore
wrote:
Darn, missed a zero. Should be 0.010101010101010101 watts.
How could it possible matter?

Richard Clark wrote:
And what purpose is served through this prostitution of citations?

Well Richard, since you are being so picky, I am
going to have to insist that you prove that you
exist. :-)
--
73, Cecil, http://www.qsl.net/w5dxp


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Cecil. W5DXP wrote:
"A 1/2-wavelength of transmission line reverses the phase of the
current, certainly a 180 degree "transformation"."

Yes. One of the baluns in the ARRL Antenna Book uses an extra180-degrees
of 75-ohm coax to drive an element in a 300-ohm balanced antenna from an
unbalanced 75-ohm aource.

Best regards, Richard Harrison, KB5WZI

Richard Harrison wrote:

Yes. One of the baluns in the ARRL Antenna Book uses an extra180-degrees
of 75-ohm coax to drive an element in a 300-ohm balanced antenna from an
unbalanced 75-ohm aource.

Best regards, Richard Harrison, KB5WZI


A standard in the VHF and up world; it is used in the T-match.

Question - has anyone ever done any analysis or testing of what happens
to a T-match when run off the center frequency of the balun?

tom
K0TAR

On Thu, 30 Jun 2005 20:43:53 -0500, Tom Ring
wrote:

Richard Harrison wrote:

Yes. One of the baluns in the ARRL Antenna Book uses an extra180-degrees
of 75-ohm coax to drive an element in a 300-ohm balanced antenna from an
unbalanced 75-ohm aource.

Best regards, Richard Harrison, KB5WZI


A standard in the VHF and up world; it is used in the T-match.

Question - has anyone ever done any analysis or testing of what happens
to a T-match when run off the center frequency of the balun?

Your question is not clear. Are you asking about tee-match performance
or balun performance?

There has been an examination of the balun performance.

"The Half-Wave Balun: theory and application", J Nagle, K4KJ, ham
radio magazine, Sept 1980 pp 32-35

Wes Stewart wrote:

A standard in the VHF and up world; it is used in the T-match.

Question - has anyone ever done any analysis or testing of what happens
to a T-match when run off the center frequency of the balun?


Your question is not clear. Are you asking about tee-match performance
or balun performance?

There has been an examination of the balun performance.

"The Half-Wave Balun: theory and application", J Nagle, K4KJ, ham
radio magazine, Sept 1980 pp 32-35



Sorry, I thought it was clear. The T-match, which has the balun as a
part. The balun was mentioned as the reference point for the center
frequency.

tom
K0TAR