Richard Clark wrote:
"The only points of interest are found in the data and the limits of
error that surround it."

Richard Clark is among other things an expert in measurements. Others
may find other points of interest in things which don`t intrest Richard.

For me, a simple go or no-go scale may be good enough. Regardless of
precision, the ultimate decision often must boil doewn to a simple yes
or no.

If my recollection is right, Yuri presented a photo of a loading coil in
action which had functioning r-f thermoammeters, one at each coil end.
Their readings were significantly different. This may not be conclusive,
but were I to see it often in various applications, I`d likely be
persuaded that currents are likely different at opposite ends of an
antenna loading coil sited in the middle of an antenna conductor.

Best regards, Richard Harrison, KB5WZI

On Thu, 4 Dec 2003 14:16:57 -0600 (CST),
(Richard Harrison) wrote:
If my recollection is right, Yuri presented a photo of a loading coil in
action which had functioning r-f thermoammeters, one at each coil end.
Their readings were significantly different.

Hi Richard,

The astonishment arises from this commonplace being tarted up as a
revelation.

As for go/no-go sieves, mine is does it make more than a dB
difference? In this case, barely 0.5dB.

73's
Richard Clark, KB7QHC

Richard Clark wrote:
As for go/no-go sieves, mine is does it make more than a dB
difference? In this case, barely 0.5dB.

So as a metrologist, plus or minus a dB is good enough? Do you use the
number 3 for Pi? That's only .02 dB off.

73, Jim AC6XG

Jim Kelley wrote:
Do you use the
number 3 for Pi? That's only .02 dB off.

Heck, Pi is only 0.63 dB higher than e so they are
virtually interchangeable.

Some state (Tennessee?) once tried to pass a state law
requiring Pi to equal 3.00.
--
73, Cecil, W5DXP

On Thu, 04 Dec 2003 13:36:24 -0800, Jim Kelley
wrote:

Richard Clark wrote:
As for go/no-go sieves, mine is does it make more than a dB
difference? In this case, barely 0.5dB.

So as a metrologist, plus or minus a dB is good enough? Do you use the
number 3 for Pi? That's only .02 dB off.

73, Jim AC6XG

Hi Jim,

Error is a fact of life. My sieve of "does it make more than a dB
difference" is not a statement of error however.

A simple example of error is found in
That's only .02 dB off.

73's
Richard Clark, KB7QHC

Richard Clark wrote:
Hi Jim,

Error is a fact of life. My sieve of "does it make more than a dB
difference" is not a statement of error however.

A simple example of error is found in
That's only .02 dB off.

:-) What decimal fraction of a tenth of a Bel do you think the ratio
Pi/3 represents, Richard?

Seventy third's de AC6XG

On Thu, 04 Dec 2003 15:20:06 -0800, Jim Kelley
wrote:



Richard Clark wrote:
Hi Jim,

Error is a fact of life. My sieve of "does it make more than a dB
difference" is not a statement of error however.

A simple example of error is found in
That's only .02 dB off.

:-) What decimal fraction of a tenth of a Bel do you think the ratio
Pi/3 represents, Richard?

Seventy third's de AC6XG

It only matters if you put your lips to Pi.

73's
Richard Clark, KB7QHC

Jim Kelley wrote:

Richard Clark wrote:
Hi Jim,

Error is a fact of life. My sieve of "does it make more than a dB
difference" is not a statement of error however.

A simple example of error is found in
That's only .02 dB off.

:-) What decimal fraction of a tenth of a Bel do you think the ratio
Pi/3 represents, Richard?

Seventy third's de AC6XG

The difference between .2 and .02 is less than a dB, so that falls below
your 1 dB threshold. ;-)

73, Jim AC6XG