[time-nuts] E1938A PN measurments
Magnus Danielson
magnus at rubidium.dyndns.org
Mon Oct 1 00:55:43 UTC 2012
On 10/01/2012 02:05 AM, Richard (Rick) Karlquist wrote:
>
>
> On 9/30/2012 2:20 PM, Magnus Danielson wrote:
>
>>
>> With two such offset 10811s you could use DMTD methods or for that
>> matter cross-correlation phase noise measures to more directly measure
>> the units. That way you would have avoided the "golden unit" issue,
>> since the phase noise of those would average out if treated well.
>>
>> Didn't you consider steps like that?
>
> I didn't "own" this system. Production engineering was very
> conservative and didn't want to change anything.
As they tend to be. But back at the engineering side at least?
Anyway, setting that up today isn't rocket science, and Bert and John
among others have been able to build such systems.
Cheers,
Magnus
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