[time-nuts] Allan deviation

[Raj]

>From KO4BB page
http://www.ko4bb.com/Timing/FAQ-1.php

What exactly would we be measuring unless we compare our standards to a perfect standard ?

Maybe be a jittery oscillator with a slow drifter on a walkabout. :-)

>The Allan Deviation is typically computed from a series of Time Interval (TI) measurements against a reference oscillator. Any one of the counters listed above can do this measurement, which simply is the measure of the delay between a signal on Input A (Start channel) and another signal on Input B (Stop channel). 

73 & a great weekend!

-- 
Raj, VU2ZAP
Bangalore, India.