[ntp:questions] ppb, parts per billion -- drift calculations..

Jon in boston jonspam at earthlink.net
Fri Apr 22 16:33:48 UTC 2005


I'm trying to unerstand how to calculate clock accuracy and or drift
based on an oscillator specificaton.  Say the total frequency stability
was 2 ppb how would I calculate drift.

Is it as simple as 2 microSecods drift every 2 billion microseconds..??
 

or 3.6 us every hour?

Thanks
Jon




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