[time-nuts] OT: AC voltage standard

[Bruce Griffiths]

Henk ten Pierick wrote:
> On Nov 6, 2007, at 22:43, Bruce Griffiths wrote:
>
>   
>> NIST's AC standard is currently useful for generating frequencies  
>> up to
>> 100kHz with 10MHz the projected useful limit for a 10Gb/s bit stream.
>> With say a 1Mb/s bit stream output frequencies up to 1KHz or so should
>> be feasible with high amplitude stability.
>>     
>
>
> The stated 10Gigabits/s for a bit stream, is that a typo?
>
> Henk
>   
No typo, a stack of Josephson junctions "excited" by a 15GHz RF source
is used together with a 10GBb/s data source see papers listed at:
http://www.acdc.nist.gov/acdc.nist.gov/ac%20JVS%20page.html

In particular:
http://www.acdc.nist.gov/acdc.nist.gov/ac%20JVS%20page_files/acjvs2006_extAbstract-tel.pdf

Bruce