Speaking as an owner of a well-behaved mechanical clock: Clock rate performance over time can be done based on time interval measurements anchored to a solid frequency standard. No 1pps needed per se. Bring a clock to time is simplified with a timescale-accurate 1pps source.
> On 2016 Dec 18, at 18:16 , Bob Stewart <b...@evoria.net> wrote: > > One thing I've never really understood is who actually uses the high-quality > 1PPS output from a GPSDO. I have spent a lot of time, effort, and money on > developing my GPSDO without a whole of thought to the user base. It was just > a quest for the best result I could obtain with a particular technology. The > frequency standard users was a no brainer. Everyone who wants a frequency > standard eventually understands they need to get a GPSDO, or an Rb, or a Cs. > And that's all I thought I had: a good frequency standard. And then Tom > prodded me a bit and showed me the shortcomings of what I was doing, and I > did something about it. So, if an NTP user can get his time fix directly > from a noisy receiver, who actually needs a time-accurate, low jitter 1PPS > pulse? > Bob - AE6RV _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
