[time-nuts] GHz output from fe5680a

ed breya eb at telight.com
Mon Jan 30 22:11:40 EST 2012

That approximate frequency exists in Rb oscillators, but it is only 
one of many harmonics, and very small in amplitude. The Rb system 
doesn't (can't) count it - it sees only the difference between a 
certain harmonic and the natural resonance, and a phase locked loop adjusts it.


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