On 09/22/2013 01:30 PM, W3KL wrote: > How does one make a measurement of the phase stability of an oscillator over > a time period much larger than the oscillator period? For example, I have > an oscillator with a frequency of 4 MHz and I want to measure the phase > drift of the RF between a given point in time and then a time 4 seconds > later. I want to make a measurement that has a precision of 0.1 degree or > better. You want to measure a drift of 4/(4E6*3600) = 278 ps. You systematic frequency error can be at maximum 1.39E-10 relative, For your noise side look at TDEV at tau of 4 s, multiply that number by at least three and it should when added with peak frequency error be below 278 ps.
Cheers, Magnus _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
