[time-nuts] Ultra Ultra Ultra Very Low phase noise 10 MHz oscillator (Low Noise Option)!!

[Bruce Griffiths]

Martyn Smith wrote:
> Hi,
>
> A while ago I claimed that my company is to bring out the lowest phase noise
> 10 MHz oscillator.
>
> This was partly done with tongue in cheek to see what response I got.
>
> A lot of people came back with alternative oscillators with even lower phase
> noise.  But I have to say I still haven't seem a better unit that is
> actually available.
>
> Someone mentioned Oscilloquartz BVA oscillator.  Although this is great at 1
> Hz, it only makes -145 dBc at 10 kHz which is very poor.  Also a $10k price
> and one year delivery period isn't what I call a readily available unit (not
> that I am in production yet, either).
>
> Other units that people mentioned don't seem to be made anymore, or just not
> available.
>
> So it seems Wenzel is still king at the moment, but they can also take 20
> weeks to deliver.
>
> Anyway,  I've just found someone from Russia who knocks everyone out of the
> air.  They claim -161 dBc/Hz at 1 Hz with a -183 dBc/Hz floor noise.  Now
> that's what I call low noise.
>
>   
How are you going to verify these claims?
What is the aging spec?
> Anyone know any more about this?  I'm trying to make contact with the guy
> but no success yet.
>
> 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
>
>   
Bruce