Hi You have a first order, second order and third order coefficient to the temperature rate dependance on a crystal. Since the second order term is a square, it does not care about the sign of the rate.
Bob > On Nov 4, 2016, at 9:56 PM, Bob Stewart <[email protected]> wrote: > > In the general case, is the impact of changing the ambient temperature around > an OCXO from, say, 40C to 41C the same as changing it from 41C to 40C all > else being equal? IOW, if I somehow have the same temperature ramp over the > same time period in both directions, will I wind up with the same frequency > and phase, or will the frequency revert but at some phase difference? > > Bob - AE6RV > ----------------------------------------------------------------- > AE6RV.com > > GFS GPSDO list: > groups.yahoo.com/neo/groups/GFS-GPSDOs/info > _______________________________________________ > 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.
