Pete, NTP's mission in life is to discipline a cheap, unstabilized computer system clock (quartz oscillator) to one or more better quality, more stable time sources. If your computer has a Grade A system clock, you would have to consider carefully whether you would make matters better or worse by trying to discipline it from time sources derived via the Internet.
>Is it possible to have NTP completely ignore the computer's crystal >oscillator and use an external oscillator? The computer's crystal oscillator (system clock) is an essential part of an NTP server; it's the entity that NTP is controlling. Don't confuse the external oscillator(s), which NTP uses as its input, and the system clock, which is the end result. Using a better-quality, e.g. ovenized, quartz oscilllator will give NTP an easier job; but NTP has been designed and engineered to cope with the vagaries of typical computers with typical system clocks. Yes, it should be possible to use a GPS to number the seconds and provide long-term disciplining of a rubidium oscillator, which in turn provides the PPS input to NTP. Paul _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
