[time-nuts] Another "atomic" clock question

Tom Van Baak tvb at LeapSecond.com
Sun Feb 23 17:21:33 EST 2014


> Now that you have brought up this subject, do you know of any way to use these LaCrosse clocks to calibrate frequency standards?

I suggest using a direct electric (1.5 VDC high-Z) or indirect magnetic (high gain) pickup on the coil to get the +/- pulse per second. Compare this time with your local frequency standard and over several days you should get accuracy better than 10 ms per day (1e-7). Here's an example of a raw phase plot:
http://leapsecond.com/pages/Junghans/

/tvb




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