Hi
The commonly heard comments about common mode drift very much pre-date the 5071…
Bob
On Aug 27, 2013, at 5:57 PM, Richard Karlquist rich...@karlquist.com wrote:
On 2013-08-27 13:35, Florian Teply wrote:
No, HP did not make the long tube Cs standards at NIST (as the NIST
guys always
Am Mon, 26 Aug 2013 07:56:51 -0400
schrieb Bob Camp li...@rtty.us:
Hi
On Aug 26, 2013, at 2:01 AM, Magnus Danielson
mag...@rubidium.dyndns.org wrote:
On 08/25/2013 08:25 PM, Bob Camp wrote:
Hi
The most common approach is to *assume* that the two devices are
not correlated.
On 2013-08-27 13:35, Florian Teply wrote:
No, HP did not make the long tube Cs standards at NIST (as the NIST
guys always love to point out) and they are very different animals
than the ones you can buy. So, the international definition of the
second has always been safe from manufacturer
Hi
There was a point in time where HP made a *lot* of the Cs standards out there.
Bob
On Aug 26, 2013, at 5:52 PM, Magnus Danielson mag...@rubidium.dyndns.org
wrote:
Hi,
On 08/26/2013 01:56 PM, Bob Camp wrote:
Hi
On Aug 26, 2013, at 2:01 AM, Magnus Danielson
On 08/25/2013 08:25 PM, Bob Camp wrote:
Hi
The most common approach is to *assume* that the two devices are not
correlated. SInce it's a negative, you really can't prove it. What you can do
is to disprove it by finding and documenting a correlation.
ADEV it's self has a confidence level
Hi
On Aug 26, 2013, at 2:01 AM, Magnus Danielson mag...@rubidium.dyndns.org
wrote:
On 08/25/2013 08:25 PM, Bob Camp wrote:
Hi
The most common approach is to *assume* that the two devices are not
correlated. SInce it's a negative, you really can't prove it. What you can
do is to
Hi,
On 08/26/2013 01:56 PM, Bob Camp wrote:
Hi
On Aug 26, 2013, at 2:01 AM, Magnus Danielson mag...@rubidium.dyndns.org
wrote:
Exactly. As you have three devices, measuring them pair-wise you get
three measures and three un-knowns, and you can untangle the
stability of each individual.
Hello time-nuts,
The NIST paper describes the estimation of the stability of one Yb clock
by simply comparing two equivalent clocks, and dividing by sqrt(2).
This is obviously a common Metrological Practise, every time if
something better is not existent or not available.
This practise can
Hi
The most common approach is to *assume* that the two devices are not
correlated. SInce it's a negative, you really can't prove it. What you can do
is to disprove it by finding and documenting a correlation.
ADEV it's self has a confidence level based on the number of samples taken.
What
: Sunday, August 25, 2013 9:47 AM
Subject: [time-nuts] Yb clock - stability estimation procedure?
Hello time-nuts,
The NIST paper describes the estimation of the stability of one Yb clock
by simply comparing two equivalent clocks, and dividing by sqrt(2).
This is obviously a common
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