Hi So your Rb is 0.71 ppb off frequency.
That's far enough that's it's worth adjusting. You should be able to get it 10X better than that without a lot of work. Bob On Aug 15, 2013, at 6:02 PM, Alan Kamrowski II <[email protected]> wrote: > Hi Rex, > >> I don't think the rubidium module for these systems can be disciplined. >> I think they were only intended as a backup if the XO section or GPS > failed. >> The XO section does discipline but I don't know the details. > > I was hoping since the rubidium module had a light for GPS and an input for > the GPS that it also did the same thing. > >> Trying to trace out some of the circuits, I found that the EFC on the >> LPRO connector was not being used at all. > > That is too bad, but that proves it all right. > > I tried to feed a 1pps signal into the interface pin 9 to see what would > happen, but the NO GPS light never went off and it didn't pull the frequency > at all. > > So far I've done a 4 hour run between the Rb and GPS and counted > 139390000010 Rb cycles to 13939 GPS 1pps pulses or 10000000.0007174 Hz for > the Rb. > > Thanks, > > Alan > > _______________________________________________ > 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.
