Re: [time-nuts] ***SPAM*** Re: Why discipline Rubidium oscillator?

Oops, I should have mentioned: The unit was a Symmetricom MHM-2010 (I hope I got that right), except that it was built before the company was bought by Symmetricom (which was later bought by Micro-Semi in turn). This is an active maser, meaning a self-sustaining oscillator whose gain medium was

Re: [time-nuts] ***SPAM*** Re: Why discipline Rubidium oscillator?

> Le 20 nov. 2017 à 20:53, Dana Whitlow a écrit : > > > > In my pre-retirement job I rode herd on an active Hydrogen maser system,and > even > that has a clear drift tendency. Generally a couple or three times per > year I had to make a frequency adjustment in the