> In general, OCXOs have crystals with high Q -> low phase noise, especially > compared to a TCXO, which *can't* have high Q, or the temperature > compensation circuit can't do it's work.
I don't understand that. Why can't I build a high Q TCXO? I don't need to change the compensation very fast. Are good crystals high enough Q that it would take too long? What's the time constant? I'd guess it's Q/freq, maybe with factors of 2pi or e or ??? That seems small relative to how fast temperature changes. (but maybe fast relative to FCC smearing or things like that) -- These are my opinions. I hate spam. _______________________________________________ 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.
