[time-nuts] Considerations When Using The SR620

Paul DeStefano paul.destefano at willamettealumni.com
Thu Dec 6 18:24:27 UTC 2012


 	That's a great question and I'm afraid I don't have a good answer 
for you.  If pressed, I would estimate less than 100ps.
 	The error of this measurement contributes to the error in our 
final measurement which has many components.  I haven't worked out an 
error budget for each contributor.  Our goal is a final error of less than 
10ns.  But a few contributors are already expected to be around 1ns, so 
this error really needs to be less than 1ns, preferably less than 100ps.


On Tuesday, 4 December 2012, Volker Esper wrote:
> I agree. Since Paul want's to use an SR620 I presume he needs precision. 
> Otherwise almost any TIC with a fairly stable osc would do, for example 
> one with a battery backup. So I further presume that he needs nearly the 
> full accuracy / stability. But that's just speculation, surely Paul can 
> answere this question?

Paul DeStefano

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