[time-nuts] ADEV test setup [was GPSDO TC & Damping]

Bruce Griffiths bruce.griffiths at xtra.co.nz
Fri Jan 9 16:25:59 EST 2009


Tom Van Baak wrote:
>> 4) The real stumbling block is obtaining a suitable reference.
>> An FTS1200 or an OSA8607 may be suitable, however these are either rare
>> or expensive.
>> Some rubidium standards are also suitable.
>>     
>
> Bruce,
>
> Note that my Tbolt time constant plots were made using just a
> 58503B GPSDO as the reference; not something more exotic.
>
> /tvb
>
>   
Tom

Doesnt that introduce some correlations for larger tau as both the
Thunderbolt and the 58503B are both locked to GPS?

Bruce




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