you can probably cite from the time-nuts archive
jim s j...@jwsss.com wrote:
On 9/11/2012 10:01 AM, Richard (Rick) Karlquist wrote:
The SC cut crystal is generally credited to Jack Kusters
(of HP) and Errol Ernisse. The story was something like
Errol proposed the concept and Jack actually
On 09/12/2012 01:55 AM, Azelio Boriani wrote:
Useful: I have found other papers on the Kalman filter applied to clock
estimation. Thank you, Magnus.
You are welcome, I actually just followed through on Rick's hint as I
know there is useful info there, and I wanted to show it more clearly.
I
Write a model of the OCXO, use the Kalman filter to generate the steering
data so that they are cleaner and drive the DAC more frequently.
On Thu, Sep 13, 2012 at 12:05 AM, Magnus Danielson
mag...@rubidium.dyndns.org wrote:
On 09/12/2012 01:55 AM, Azelio Boriani wrote:
Useful: I have found
Curious who came up with the SC cut first ?
The well done Wikipedia page
http://en.wikipedia.org/wiki/Crystal_oscillator
doesn't say
-pete
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In message caa-f0u_nods3pyr384php4-v53qo7cjnmzd0ostapmgo9gw...@mail.gmail.com
, Pete Lancashire writes:
Curious who came up with the SC cut first ?
I think I saw that mentioned in a BSTJ article I read recently.
I'm reading them all, end to end, so don't ask me which one...
Go here:
there...
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Pete Lancashire
Sent: Tuesday, September 11, 2012 12:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] SC Cut
Curious who came up with the SC
It is credited to Errol EerNisse in 1974 who discovered it mathematically.
David
On 9/11/12 12:08 PM, Poul-Henning Kamp wrote:
In message caa-f0u_nods3pyr384php4-v53qo7cjnmzd0ostapmgo9gw...@mail.gmail.com
, Pete Lancashire writes:
Curious who came up with the SC cut first ?
I think I saw
Lancashire
Sent: Tuesday, September 11, 2012 12:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] SC Cut
Curious who came up with the SC cut first ?
The well done Wikipedia page
http://en.wikipedia.org/wiki/Crystal_oscillator
doesn't say
-pete
On 9/11/2012 10:01 AM, Richard (Rick) Karlquist wrote:
The SC cut crystal is generally credited to Jack Kusters
(of HP) and Errol Ernisse. The story was something like
Errol proposed the concept and Jack actually made the
first one, which was quite non-trivial.
Jack used to joke that SC stood
There is plenty of documentation at the IEEE web
site in the UFFC society's section. EerNisse
gave a paper at the Frequency Control Symposium
on it at the time. Kusters followed up a year
later with experimental data. I am not aware of
any controversy about these two guys being the
inventors,
On 09/12/2012 12:00 AM, Richard (Rick) Karlquist wrote:
There is plenty of documentation at the IEEE web
site in the UFFC society's section. EerNisse
gave a paper at the Frequency Control Symposium
on it at the time. Kusters followed up a year
later with experimental data. I am not aware of
any
Useful: I have found other papers on the Kalman filter applied to clock
estimation. Thank you, Magnus.
On Wed, Sep 12, 2012 at 12:58 AM, Magnus Danielson
mag...@rubidium.dyndns.org wrote:
On 09/12/2012 12:00 AM, Richard (Rick) Karlquist wrote:
There is plenty of documentation at the IEEE web
On 9/11/12 3:58 PM, Magnus Danielson wrote:
On 09/12/2012 12:00 AM, Richard (Rick) Karlquist wrote:
There is plenty of documentation at the IEEE web
site in the UFFC society's section. EerNisse
gave a paper at the Frequency Control Symposium
on it at the time. Kusters followed up a year
later
See also:
SC-Cut Quartz Oscillator Offers Improved Performance, page 20-29
www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1981-03.pdf
including The SC Cut, a Brief Summary, page 22
Info on Jack Kusters, including a large list of his papers, here:
Dear time-nuts,
If I want to play around with AT-cut crystals, it is trivial to pick
them up. I have bags of 20 MHz AT-cut crystals laying around.
I do not feel comfortable like hacking away on the 10811s I have.
So, where do I find some SC-cut crystals to play around with?
I don't need
So, where do I find some SC-cut crystals to play around with?
I don't need stellar performance. Think crude lab-hacks at this point.
Any ideas?
I got mine from Charles Wenzel. It think it failed his phase noise
screening. Really nice guy, BTW.
--
newell N5TNL
Magnus Danielson wrote:
Dear time-nuts,
If I want to play around with AT-cut crystals, it is trivial to pick
them up. I have bags of 20 MHz AT-cut crystals laying around.
I do not feel comfortable like hacking away on the 10811s I have.
So, where do I find some SC-cut crystals to play
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