[time-nuts] OCXO retrace, how long is reasonable?

[Hal Murray]

Matthias Welwarsky said:
> Could this be OCXO retrace? How long can that phase last? I'm trying to
> decide  if I should give it another week or just scrap it and move on. 

The one sample I played with was a 3 MHz OCXO without any attempts to lock it 
to anything.  The drift or retrace was roughly exponential out to a month or 
two.

3 hours
http://users.megapathdsl.net/~hmurray/time-nuts/Drift-ocxo3mhz-a.gif
3.5 days
http://users.megapathdsl.net/~hmurray/time-nuts/Drift-ocxo3mhz-b.gif
10 days
http://users.megapathdsl.net/~hmurray/time-nuts/Drift-ocxo3mhz-c.gif
400 days
http://users.megapathdsl.net/~hmurray/time-nuts/Drift-ocxo3mhz-d.gif

(Note that the vertical scale changes from graph to graph.)


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