On 14 Dec 2014 15:45, "Bob Camp" <kb...@n1k.org> wrote: >
> > There are some long and detailed threads back in the archives about just how USB works and what this does to timing. > > Simple / quick summary: > The impact on pps timing could (and often is) quite major. I would still like to experiment with it. As I wrote earlier I bought this for a frequency reference, not a clock, but I would not object to a bit of fun messing around with it. > Another alternative (and thus it’s popularity on the list) is to set up something small and light weight as a dedicated NTP server on your local LAN. That gets the timing issues of your local connection to the internet out of the NTP equation. You can get down under 10 us with a setup like that. The result may be better than your ability to time an edge on the SUN box, due to all the other overheads involved there. It’s also a nice stand alone project that is far less likely to mess up your main machine. The boards commonly used are < $100 and some are much cheaper than that. > > Bob I can't really justify that given an accurate clock is not really necessary for me. Dave _______________________________________________ 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.