Steve Rooke wrote: > 2008/10/24 <[EMAIL PROTECTED]>: > >> the jumps are very slow in their frequency change, so the crystal filters >> would just follow the frequency drift. I have seen these jumps take from a >> few >> seconds to 20 minutes or so. Of course in a Rb they would be compensated by >> the Rb pulling or pushing the crystal onto the proper frequency. >> > > But I'm not suggesting that the rubidium stage is used to discipline a > ocxo and then fed onto a xtal lattice filter, I meant that the > rubidium stage would go directly into the xtal lattice filter. This > way there is no xtal oscillator to jump off frequency. > > Steve
You've missed a vital point: There is no RF output from the rubidium cell itself at all. It doesn't oscillate as does an active hydrogen maser. Bruc _______________________________________________ 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.
