[time-nuts] 53132 Option 012 Aging

John Allen john at pcsupportsolutions.com
Sun Apr 12 12:39:27 EDT 2015

Hi nuts - I ran into this information on the Keysight site.
The aging rate of a Keysight Option 012 ultra-high-stability oven in the
first 90 days is:
1E-10 *30 days + 3E-9 * 2 months = 9E-9
In the first year, the aging rate is:
1E-10 *30 days + 3E-9 * 11 months = 3.6E-8
The second year (without adjustments) the aging rate is:
1E-10 *30 days + 3E-9 * 11 months + 2E-8*1 year = 5.6E-8
Above is from:
Tips for making more accurate measurements with a frequency counter
It makes a case for using a GPSDO or other external reference or frequent
re-calibrations of the -012 oscillator.
Regards, John

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