On Wed, 20 Jul 2005 14:05:18 -0500, Cecil Moore
wrote:

Richard Clark wrote:

Richard Clark wrote:
yet another tantalizing, unanswerable question: What wavelength is Glare?

Dear Readers,

Richard, I am really worried about you arguing with your own
postings. The wavelength of glare from a single-frequency
coherent laser is obviously the same as the wavelength of the
laser's primary output beam. What else could it possibly be?

Golly gee, fellas, you two, Cecil and Richard C, you sure don't talk
nice to each other. But it sure is fun to sit back and listen to you
scream at each other. Just think, what would happen if Leno and
Letterman should be reading the mail? They'd kill each other to get
their hands on you for their nightly shows, and they could fire all
their present writers.

Walt

On Wed, 20 Jul 2005 15:56:04 -0400, Walter Maxwell
wrote:

They'd kill each other to get
their hands on you for their nightly shows, and they could fire all
their present writers.

Thanx Walt,

I'd be hard pressed for material without the stooge.

73's
Richard Clark, KB7QHC

Cecil Moore wrote:
The Bird is indirectly measuring [(E^for) x (H^for)] as forward
power and [(E^ref) x (H^ref)] as reflected power.

That statement bears no physical relationship to how the instrument
actually works (and "indirectly" won't get you off the hook either).


--
73 from Ian G/GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek

It takes at least two stooges interacting to be funny.


"Richard Clark" wrote in message
...
On Wed, 20 Jul 2005 15:56:04 -0400, Walter Maxwell
wrote:

They'd kill each other to get
their hands on you for their nightly shows, and they could fire all
their present writers.

Thanx Walt,

I'd be hard pressed for material without the stooge.

73's
Richard Clark, KB7QHC

On Wed, 20 Jul 2005 17:28:03 -0400, "Fred W4JLE"
wrote:

It takes at least two stooges interacting to be funny.

Now taking applications.

Hi Fred,

It takes a condition called irony-deficit disorder to wade into these
things and say that. ;-)

Let's just give an example of the straight-man's lead into the joke:

"I flipped the switch to a 100W light Bulb.
What direction vector is the optical power?"

The Scientist would ask for this in standard notation, but we all know
that he isn't going to get that - hence, the subject from the
beginning is a joke. Now, only to wait for the punchline:
(drumroll) Ta-ta-dum....

73's
Richard Clark, KB7QHC

Richard Clark wrote:
"Any introduction of direction is purely an invention unsupported by
references so far presented."

I referred to Terman`s 1955 edition, page 90, where Terman wrote:
"Where the load end of the line is short-circuited, that is Eload=0,
reference to Sq. (4-14) shows the reflecction coefficient has the value
-1.0 on an angle of 0-deg. = +1.0 on an angle of 180-deg. As in the
open-circuited case, the reflected wave has an amplitude equal to the
amplitude of the incident wave. However, the reflection now takes place
with reversal in phase of the voltage and without change in phase of the
current."

Of course, in the case of the open=circuited load, the reflection takes
place with reversal in phase of the current and without change in phase
of the voltage.

Terman`s writing has stood siuccessfully unchallenged for at least 50
years.

Best regards, Richard Harrison, KB5WZI

Jim Kelley wrote:
I think I'll stick with just saying that power, as a scaler quantity
does not have direction and cannot be negative.

So what is E^ x H^?
--
73, Cecil http://www.qsl.net/w5dxp

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Ian White G/GM3SEK wrote:

Cecil Moore wrote:
The Bird is indirectly measuring [(E^for) x (H^for)] as forward
power and [(E^ref) x (H^ref)] as reflected power.

That statement bears no physical relationship to how the instrument
actually works (and "indirectly" won't get you off the hook either).

I was hoping someone would assert such. E^for is proportional to
Vfor which is what the Bird samples. H^for is proportional to
Ifor which is what the Bird samples. Within a 50 ohm environment
that yields forward power. Same for reflected power.
--
73, Cecil http://www.qsl.net/w5dxp

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Richard Clark wrote:
"The very first formula from the Standard Handbook for Electrical
Engineers, Section 11. Power Transmission, Electrical Calculsations:
I = P/E (1) "

Unless a d-c transmission is specified, that`s wrong.

P=EI cos theta, where theta is the angle between E & I. For 0-deg. coa
theta=1.

Cos theta is synonymous with the "power factor" of a single phase
circuit.

I`m relying on memory which is good for old things.

Best regards, Richard Harrison, KB5WZI

Richard Clark jested:
"I flipped the switch to a light bulb. What direction is the optical
power?"

Seriously, away from and toward are directions. We expect a light bulb
to be an energy source. If it becomes a sink it has a negative effect.

From John E. (Here`s Johnny!) Cinningham`s "The Complete Broadcast
Antenna Handbook", page 243:
"Again, if the base impedance is a negative number, this merely means
that energy is flowing out of a tower (toward the transmitter) instead
of into it (from the transmitter)."

Sign is certainly used to indicate the direction of energy movement or
the same thing, power flow.

Best regards, Richard Harrison, KB5WZI