(Sorry for the dupe, not sure how that happened...) -- john
> -----Original Message----- > From: [email protected] [mailto:time-nuts- > [email protected]] On Behalf Of John Miles > Sent: Sunday, February 05, 2012 1:46 PM > To: 'Discussion of precise time and frequency measurement' > Subject: Re: [time-nuts] Rubidium Performance > > > John > > Thank you for your effort. It would be nice if you could confirm the 4 to > 5 > > Hz dither that seems to be the loop time constant and long term aging > that > > will influence the GPS/Rb control loop time constant setting. I did see 1 > > E-12 per month which may be unique to that unit. > > Bert Kehren > > There's a lot of impulse-like structure in the 10 MHz signal from the units > I have, certainly. You can see the spikes here that are associated with > the spurs at multiples of 1 Hz in the earlier PN plot, as well as some even > stronger pulses that show up about every 28 seconds. They might > correspond > to the grand repetition rate of the DDS. > > I don't see anything specific around 4-5 Hz except for the 1 Hz harmonics. > > -- john _______________________________________________ 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.
