Hello all, I'm working on discipling a FRS-C Rb oscillator using a M12T GPS and a AT91SAM7S64 micrcoprocesador (ARM architecture) using the same concepts described in the famous Brooks Shera article. I've two questions: For timekeeping, it is better to turn on in the GPS both tropospheric and ionospheric models, only one of them, or none. The other question is about the loop filter. Currently I'm playing with a PI filter, with two switched time constants (one for relatively fast first lock and once locked, a slower one). I would like to know, in your experience, what it the time constant that would be optimal for this kind of oscillator.
Thanks. Best regards to all, Javier, EA1CRB _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
