Hi I’m guessing there was a question to me that somehow got lost in the world of ones and zeros ….
My comment was in terms of temperature stability. The CSAC has a temp stability specification of +/-4x10^-10 over -10 to +70C. There are TCXO’s that will get below 5x10^-9 over that range and use far less power. There are OCXO’s that will get to better temperature stability numbers over that range. Neither one will do the long term aging that a Rb will. Bob > On Jan 22, 2018, at 3:49 PM, jimlux <[email protected]> wrote: > > On 1/22/18 12:05 PM, Ronald Held wrote: > >> Bob: >> OCXO and TCXO are larger then the CSAC? How much more power would >> they need to get within a factor of ten to the 1.5s/1000 years? >> Ronald > > > OCXO and TCXO are both available smaller than the CSAC (particularly tcxo). > I'm using a vectron EX-421 OCXO and it's about 1cm on a side, the OX205 is > about 1" square and maybe 0.60" tall. > > TCXOs are available in "cellphone" form factors (e.g. tiny SMT packages) > > _______________________________________________ > 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.
