); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY > Jerry > > It is amusing/distressing to see that the myth that using an FLL to lock > an oscillator to the PPS output of a GPS receiver is a good approach > still persists. > The optimum solution is a phase lock loop. > Whilst building an FLL is instructive/educational, if you want the best > GPSDO performance you should really use a PLL. > > Bruce
It would seem for timekeeping applications, a PLL-based GPSDO will inherit the long-term accuracy of GPS with great fidelity. But for many frequency (e.g., transmitters) or time interval applications (e.g., frequency counters with finite gate times), I'd like to understand, in detail, what the difference between a PLL- and FLL-based GPSDO really is. Can someone point me to real data or even simulations with plots that show rms or adev differences between the two camps? Thanks, /tvb _______________________________________________ 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.
