Hi You are correct in your observation that the short term stability of a TCXO *does* impact GPSDO performance. An OCXO (once it has warmed up and stabilized) will do better than a TCXO.
Because of the higher sensitivity of a TCXO on the EFC, there will be some change to the firmware when going from a TCXO to an OCXO. Can you get things done? Maybe…. There are a number of OCXO GPSDO’s out there these days. The “low cost” ones seem to be in the ~$40 range. It’s cheaper to get one of them than to do crazy things to a TCXO based unit. Bob > On Apr 17, 2016, at 4:04 PM, Erik Thomassen via time-nuts > <time-nuts@febo.com> wrote: > > Good evening group ! > I am in the fortunate situation to have "inherited" two Symmetricom > ET6000-TCXO receivers. Seemingly fine receivers but i do not like the way > they "drift" plus /minus. They never seem to settle, even free-running OCXO's > seems to be far better over short time. > Yes, I know that this is the rule - but when compared with a new Meinberg > GPSDO unit (replacing the ET6000) the -6000 "never" settles. > > I am in the firm beleif that a change from a cheap TCXO to a "reasonable" > OCXO of any make will at least stabilize the 10MHz output by a decade or more. > > I do have the user manual but: I do not feel confortable exhanging the > original TCXO with a OCXO of any higher accuracy/stability, non original > component just like that... > > Any suggestions for making a reasonably good receiver even better by simple > and cheap means? Any service manual/info deeper than the user manual? > Kind regards from NorwayErik > _______________________________________________ > 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.
