??? I double checked the email I sent and it seems part of it did not end up in the time-nuts archive.
Perhaps it did pass on in the emails to subscribers. Personally I find the traffic on this list a bit much and disabled the email/digest. Because of my moving around I use some webmail thingy. So I do not get the email itself. It would be nice to have a yahoo-type webform to post on this list. But hey, I am not complaining with all these knowledgeable people around. This is what I sent before of which only the first paragraph seemed to get through. hope it works now. If not I will quit trying to reduce the "noise". > > I can understand. But I will not need that high accuracy very often. > So I just wanted to examine what can be expected after power-on. Just > saving a bit of environment where possible. > > From a Datum LPRO specifications document I read: > > Warm-up: (at -20°C) (at 25°C) > Time to Lock: < 8.7 min < 5.4 min > Time to <1E-9: <10.2 min <7.3 min > Time to <4E-10: <12.7 min <10.6 min > > Frequency Retrace: <±2.5E-11 > (after 24 hrs power on @ 25°C & up to 48 hrs power off) > > I guess my readings are all within the above specs. The retrace value is > probably the limiting factor. 2.5E-11 translates in my setup to 90ns/hour. > Which looks being reached already in about 2 hours after power-on. So if > the Efratom is essentially the same as the Datum, then all looks fine. > > Joop _______________________________________________ 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.
