[time-nuts] How do I know my GPS stabilized oscillator is working?

[Brooke Clarke]

Hi Alberto:

I don't think so.  The crystal oscillator is aging and so the EFC value 
should match the aging in the long run.  See that plots at:
http://www.rt66.com/%7Eshera/index_fs.htm

To see of a GPSDO is working compare it's 1 PPS output to the GPS 1 PPS.

Have Fun,

Brooke Clarke

-- 
w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com



Alberto di Bene wrote:

>Didier Juges wrote:
>  
>
>>--- snip ---
>>The question that comes up is: how do I know my GPSDSO is working and 
>>how do I evaluate its stability?
>>--- snip ---
>>    
>>
>
>Couldn't you plot the EFC value vs time, and check whether it tends asymptotically towards a (pseudo-)stable value ? 
>Knowing the Hz/V parameter of the 10811 should also allow you to guesstimate the quality of the lock obtained.
>
>73  Alberto  I2PHD
>
>
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