Mark, Thanks. I think I got it:
> Tcor, UNC Lady Heather happily posts cryptic messages from the device! > TFOM, FFOM Yup, I found them in the Z3801A manual. Appreciate the help. Will look for (maybe I have) the (or a) Symmetricom manual. Scott > On Dec 16, 2017, at 10:55 AM, Mark Sims <hol...@hotmail.com> wrote: > > Generally the best way to figure out what some cryptic Heather parameter is > is to consult the manual for the device and see if you can find something > similar to the label... you do have an extensive Symmetricom GPSDO manual, > don't you? ;-) If Heather sees a wiggly value in a message , it tends to > get plotted. > > UNC is the holdover uncertainty... how much the time is expected to drift > over 24 hours without signal. The value should go down as the GPSDO learns > the oscillator behavior. > > TCOR is, uhh, tcorr. Yeah, that's the ticket... obvious... It's some > value in a status message that wiggles around. It shows up in a status > message with the header "TEMP COR". I assume it's the frequency adjustment > made due to temperature. > > TFOM and FFOM are pretty standard GPSDO parameters. Time figure of merit and > frequency figure of merit. I think the telecom industry sort of standardized > them. The HP Z3801A manual talks about them. > _______________________________________________ > 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.
