On Tue, 23 Sep 2003 10:54:20 -0500, Cecil Moore
wrote:

Uh Keith, *NO* instrument works in the general case. Can you
measure gamma rays with your RF voltmeter?

On Tue, 10 Jun 2003 18:47:32 -0500, W5DXP
wrote:

Richard Clark wrote:
Do you measure V/I with a thermometer?

One certainly can. If there's no temperature rise, the resistance
value is dissipationless.

Hi Cecil,

What is the V/I for a 1 degree rise?

73's
Richard Clark, KB7QHC

On Tue, 23 Sep 2003 11:15:35 -0500, Cecil Moore
wrote:

Richard Clark wrote:
What is the V/I for a 1 degree rise?

Same as before, Richard, dissipative. This is a binary measurement.
The possible values are dissipative and non-dissipative.

Hi Cecil,

Binary hmmm? So you say you experience 1 V/I for a 1 degree rise? Or
is it 0 V/I for a 1 degree rise? Curious sort of general
instrumentation you have there. What is the name of this superb
instrument of yours?

73's
Richard Clark, KB7QHC

Richard Clark wrote:

wrote:
Same as before, Richard, dissipative. This is a binary measurement.
The possible values are dissipative and non-dissipative.

Curious sort of general
instrumentation you have there. What is the name of this superb
instrument of yours?

Did you ever grab the top of a 75m hamstick coil right after
transmitting? That coil is dissipative.
--
73, Cecil http://www.qsl.net/w5dxp



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On Tue, 23 Sep 2003 12:29:46 -0500, Cecil Moore
wrote:
Did you ever grab the top of a 75m hamstick coil right after
transmitting? That coil is dissipative.

Hi Cecil,

So this general instrument you use is your hand? Lest we forget:
On Tue, 23 Sep 2003 10:54:20 -0500, Cecil Moore wrote:
Uh Keith, *NO* instrument works in the general case.

Keep your hands to yourself. ;-)

73's
Richard Clark, KB7QHC

There are a lot of TDR and oscilloscope users out there to contradict that.

Roy Lewallen, W7EL

Richard Harrison wrote:
. . .
Step functions lost interest with the demise of telegraph, but ones and
zeros are back bigger than ever.

Best regards, Richard Harrison, KB5WZI

On Tue, 23 Sep 2003 12:29:46 -0500, Cecil Moore
wrote:
Did you ever grab the top of a 75m hamstick coil right after
transmitting? That coil is dissipative.

Hi Cecil,

On even more reflection, your hand is an abysmal binary general
instrument. Take your own test above.

What was the V/I? You don't know.
What was the temperature? You don't know.
Could you measure 1W dissipation? You don't know.
Could you determine 1 Ohm? You don't know.
Could you determine 1°? You don't know.

How accurate could you if you deny these above? (Binary measures are
either totally wrong or half-assed right.)

What was the V/I to within 5ppm? You don't know.
How about to within 50%? You still don't know.

Step outside (without recourse to weather report or thermometer) and
touch a sun exposed wall of your home. What temperature is it to
within 1°? How much error did your hand introduce in cooling/warming
it up/down? You haven't a clue.

No wonder you reject general instrumentation application, you make
miserable choices. You cannot even offer quantitative evidence,
merely the Zen of "oooh that's hot," and you don't even suggest that.

How long before you ride your bike to the library anyway? Waiting for
a hot/cool/just-right day? Call ahead to see if "Goldilocks" is not
already checked out before leaving.

73's
Richard Clark, KB7QHC

Richard Clark wrote:
So this general instrument you use is your hand?

Yep, hands are generally quite useful.
--
73, Cecil http://www.qsl.net/w5dxp



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Richard Clark wrote:
On even more reflection, your hand is an abysmal binary general
instrument.

You are perfectly free to live your life in the no-hands mode.
Myself, I find them generally quite useful for binary decisions.
All one needs is a trigger threshold.
--
73, Cecil http://www.qsl.net/w5dxp



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On Tue, 23 Sep 2003 14:22:39 -0500, Cecil Moore
wrote:

Richard Clark wrote:
On even more reflection, your hand is an abysmal binary general
instrument.

You are perfectly free to live your life in the no-hands mode.
Myself, I find them generally quite useful for binary decisions.
All one needs is a trigger threshold.

Hi Cecil,

And you haven't the faintest idea what that threshold is except for
"ouch." Given your tender sensibility, one might be convinced by you
that a glass standing in the shade would boil water. "Might."

I take it by your lack of other response you couldn't summon up a
simple measure of temperature, power, resistance, much less their
accuracy with your instrument. How much power in 10 OuchWatts?

73's
Richard Clark, KB7QHC

Richard Clark wrote:
I take it by your lack of other response you couldn't summon up a
simple measure of temperature, ...

If you, as a father, ever felt the brow of your child, you can tell
his/her body temperature within a couple of degrees.
--
73, Cecil http://www.qsl.net/w5dxp



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