Rule of thumb: - really good OCXO have frequency drift rates of 1e-10 to 1e-11/day - common Rb have frequency drift rates on the order of 1e-11/month - Cs do not have frequency drift - H-maser drift rates are 1e-15 to 1e-16/day
/tvb (i5s) > On Mar 23, 2014, at 4:32 PM, Charles Steinmetz <csteinm...@yandex.com> wrote: > > Hal wrote: > >> Does anybody have data on the drift of Rs or Cs? > > Tom has some data posted at leapsecond.com (for H-masers, too). > > John Miles has some at ke5fx.com. > > John Ackermann has some at febo.com. > > I encourage you to roam widely over all three sites -- you will be well > rewarded. > > Best regards, > > Charles > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
