[time-nuts] Rubidium standard
Chuck Harris
cfharris at erols.com
Mon Nov 23 22:34:20 UTC 2009
Rubidium crystals?? Do tell!
-Chuck Harris
Marco A. Ferra wrote:
>> I was told by a Technical Support Engineer from Symmetricom Global
>> Services that
>> "The typical life span is ~10 years for these Rubidium Time Bases".
>>
>> This is in response to my request for information on a Ball/Efratom
>> PTB-100.
>>
>> Is this a typical life span of a rubidium standard?
>
> We had a guy from Pendulum Instruments in our Laboratory that stated
> that the life span of Rubidium crystals are between 10 ~ 12 years, so
> the information seems to be correct. I believe that when the rubidium
> starts to get older, it loses stability and inversely behaves like the
> quartz (when older, the more stable).
>
> Kind regards,
>
>>
>> Do some standards last longer than others?
>>
>> What are the symptoms of a failing rubidium bulb?
>>
>> Thanks
>> 73
>> Glenn
>> WB4UIV
>
>
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