[time-nuts] Cesium Oscialltors and Low Phase Noise Frequency Standard

Jeff Mock jeff at mock.com
Thu Dec 6 18:02:01 EST 2007

It sounds like a really nice oscillator.  I'm sure that everyone would 
love to hear about the challenges and tradeoffs in designing such a high 
performance quartz oscillator.

Do you guys cut your own crystals? How much of the improvement comes 
from a better SC-cut crystal and how much from better electronics or 
better ovens? I could go on and on, you wouldn't want to sit next to me 
on a plane.


Martyn Smith wrote:
> Hi,
> Is there anyone out there clever enough to design me a cesium frequency standard??
> There's only two manufacturers that I know of and there's room for another supplier.
> Also you may be interested to read we have just developed what we believe to be the worlds lowest close-in phase noise 10 MHz oscillator.
> It makes -121 dBc/Hz @ 1 Hz.  Noise floor is only -162 dBc/Hz at the moment, but we are working on reducing this a further 5 to 10 dB.
> Enter your order number here......
> Best Regards
> Martyn
> This Email is from:
> Martyn Smith
> Precision Test Systems LTD
> Tel: +44 (0) 1245 329608
> Email: martyn at ptsyst.com
> Web: www.ptsyst.com
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