Hi Best guess is that the oven circuit has “issues”. If that’s the case, it will go on pretty much forever and ever. Without a plot, it’s sort of hard to guess ….
Bob > On Sep 4, 2020, at 2:50 AM, Matthias Welwarsky <[email protected]> wrote: > > Hi, > > I mentioned in a previous email that I seem to have picked a particularly bad > (broken?) OCXO for GPSDO testing. It drifts at a very high rate, from the DAC > graph I calculate it is around -4e-4 Hz/hour. It's been on for about 1 week > now and the drift doesn't seem to come down, or maybe just marginally. > > Of course, this being a surplus OCXO with unknown history, odd startup > behavior is somewhat expected but so far I haven't seen anything this drastic. > > Could this be OCXO retrace? How long can that phase last? I'm trying to > decide > if I should give it another week or just scrap it and move on. > > Regards, > Matthias > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
