Didier Juges wrote: > Dr Bruce Griffiths wrote: > >> Didier >> >> Typically with a good local oscillator you can do even better than that, >> around 1E-11 in 1 sec is achievable and has been achieved. >> Even with the on board TCXO typically 3E-11 or so in 1s is achieved. >> >> Bruce >> >> >> > I don't understand how such good variance can be achieved without some > method of electronic frequency control on the TCXO (unless the TCXO does > have EFC)? > > Otherwise, we would be back to the case where the receiver would > approximate the position of the PPS by skipping pulses, and we would > have the typical 40nS jitter (assuming a 25 MHz clock) > > I am more puzzled now :-) > > Didier > > > _______________________________________________ > time-nuts mailing list > [email protected] > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > Bon soir Didier
You are confusing the disciplining precision of the oscillator with measurement of its short term stability via the GPS receiver in this case. Bruce _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
