Rubidium is a 'Secondary' reference, meaning it must be calibrated against a 'Primary' reference such as a Cesium Beam or Hydrogen Maser or, perhaps, your GPSDO. Cesium Beam Standards some times appear on e..y in various states of disrepair but are fun to play with. There have been many discussions about their merits, or lack there of, on this list and it might make interesting reading. I am amazed that, in my little shop, I can generate something that seems 'locked' to the signal I get from my GPSDO and requires no calibration.
Your GPSDO is 'linked' to the NIST Hydrogen Maser via the satellites. The only problem comes when and if the satellites are not usable. I am a relative 'newbie' as well, so be careful. This stuff is addicting. Joe -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Joseph Gray Sent: Monday, October 05, 2009 2:09 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] Why would I want a rubidium Sorry for the newbie question, but with two Z3801A's, what use would I find for a rubidium unit? I see lots of them on ebay from the Chinese sellers. _______________________________________________ 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.
