Thanks Bob; It would be great if these are all cal issues. The offset is most likely calibration related, but I will be surprised if the jitter in a cal issue. It is certainly possible. I am thinking a weak/noisy cap. Thomas Knox
> From: [email protected] > Date: Sat, 9 Jun 2012 12:58:12 -0400 > To: [email protected] > Subject: Re: [time-nuts] SR620 flicker. > > Hi > > There is a fairly detailed calibration procedure for the SR620. I don't > remember all the steps, but it does indeed reduce the reading jitter. > > Bob > > On Jun 9, 2012, at 11:49 AM, Tom Knox wrote: > > > > > I have a SRS SR620 that when an input channel is connected to the Ext Ref > > out has "Flicker" of about 3 digits of jitter/noise/drift. My experience is > > that most counter monitoring their external reference will be stable to one > > count with only an occasional larger jump. Magnus told me he has a SR620 > > that has the same instability problem, and that he heard this is a common > > problem for these units. Has anyone else encounter this problem? And of > > course the 2 dollar question, does anyone know how to repair this issue? > > THANKS; > > Thomas Knox > > > > > > > > _______________________________________________ > > 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. > > > _______________________________________________ > 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. _______________________________________________ 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.
