[time-nuts] chip scale atomic clock

[Robert Lutwak]

I pay pretty close attention to what people in this field are saying, 
and I've never heard anyone say "we'll get to 1e-11 short term 
stability at 1 second real soon now."

1e-11 at 1 second is the XPRO spec (and 2X better than LPRO or 
PRS10). There are good (physics) reasons why those units all draw 
100X more power than a CSAC.

CSAC is intended for portable battery-powered operation. Surely your 
basement has the space and wallplug power to support an LPRO. (p.s. 
don't cool the damn thing, heat it).

The cats were much happier during the CsIII development (see 
http://home.comcast.net/~rlutwak). It was bigger and warmer. Any 
Cat-Nuts out there who can help me find one with significantly lower SWAP?

-RL

At 10:08 AM 12/26/2009, you wrote:
>Hi
>
>1x10-11 at 1 second,  going down by tau^0.5.
>
>That makes them candidates for the basement system ....
>
>Bob
>
>On Dec 26, 2009, at 9:33 AM, Robert Lutwak wrote:
>
> > How "good" do you want?
> >
> >
> > At 09:13 AM 12/26/2009, you wrote:
> >> Hi
> >>
> >> They still seem to be at the stage of "we'll get to good short 
> term stability at 1 second real soon now".
> >>
> >> Bob
> >>
> >>
> >> On Dec 26, 2009, at 8:23 AM, Ronald Held wrote:
> >>
> >> > I read about this a while ago. Has anyone seen anything recent about
> >> > it, notably desktop or even portable units?
> >> >        Ronald
> >> >
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> >>
> >>
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> >
> >
> > -RL
> >
> > -----------------------
> > Robert Lutwak
> > Symmetricom - Technology Realization Center
> > 
> <mhtml:mid://00000000/mailto:RLutwak@Symmetricom.com>RLutwak at Symmetricom.com 
> (Business)
> > 
> <mhtml:mid://00000000/mailto:Lutwak@Alum.mit.edu>Lutwak at Alum.mit.edu (Personal)
> > (978) 232-1461                              (Desk)
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> >
> >
> > -RL
> >
> > -----------------------
> > Robert Lutwak
> > Symmetricom - Technology Realization Center
> > 
> <mhtml:mid://00000000/mailto:RLutwak@Symmetricom.com>RLutwak at Symmetricom.com 
> (Business)
> > 
> <mhtml:mid://00000000/mailto:Lutwak@Alum.mit.edu>Lutwak at Alum.mit.edu (Personal)
> > (978) 232-1461                              (Desk)
> > (339) 927-7896                              (Mobile)
> > (978) 927-4099                              (Facsimile)
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>
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-RL

-----------------------
Robert Lutwak
Symmetricom - Technology Realization Center
<mhtml:mid://00000000/mailto:RLutwak@Symmetricom.com>RLutwak at Symmetricom.com 
(Business)
<mhtml:mid://00000000/mailto:Lutwak@Alum.mit.edu>Lutwak at Alum.mit.edu 
(Personal)
(978) 232-1461                              (Desk)
(339) 927-7896                              (Mobile)
(978) 927-4099                              (Facsimile)



-RL

-----------------------
Robert Lutwak
Symmetricom - Technology Realization Center
<mhtml:mid://00000000/mailto:RLutwak@Symmetricom.com>RLutwak at Symmetricom.com 
(Business)
<mhtml:mid://00000000/mailto:Lutwak@Alum.mit.edu>Lutwak at Alum.mit.edu 
(Personal)
(978) 232-1461                              (Desk)
(339) 927-7896                              (Mobile)
(978) 927-4099                              (Facsimile)