Yes, very interesting, good to have. I see differences: the most notable is the plot of page 12 on the original italian version that is missing on the ITU paper, that goes with the figure 4 on page 7 (of the ITU one).
On Tue, Apr 5, 2016 at 12:57 AM, Magnus Danielson <[email protected]> wrote: > Hi, > > I had not seen the ITU-R version, nice. > I have their paper and shared it with Hal on the side. > > This ITU-R version seems about the same, but I've got their names on it. I > got a copy of their paper in english without their names on it, which might > have been their input contribution to ITU-R. I then demanded a version with > their names on it, so that I could share it, within a day I had that. When > someone covered this aspect, why not spread it and they get the credit for > it? > > I've visited them and seen this setup. > > Cheers, > Magnus - who just got back to lodging/dorm-room after discussing things with > Attila > > > On 04/05/2016 12:01 AM, Logan Cummings wrote: >> >> My Italian is not very good, but I think this is the English translation >> via ITU: >> >> https://www.itu.int/dms_pub/itu-r/opb/rep/R-REP-BT.2253-2012-PDF-E.pdf >> >> -Logan >> >> On Mon, Apr 4, 2016 at 1:10 PM, <[email protected]> wrote: >> >>> Here the italian version: >>> >>> http://www.crit.rai.it/eletel/2012-1/121-2.pdf >>> >>> Luciano >>> www.timeok.it >>> >>> >>> On Mon 04/04/16 21:28 , Magnus Danielson <[email protected]> >>> wrote: >>> >>>> Hi Hal, >>>> >>>> On 04/04/2016 05:39 AM, Hal Murray wrote: >>>>> >>>>> >>>>> Has anybody studied what happens when a GPSDO comes out of holdover? >>> >>> Has >>>>> >>>>> anybody seen any specs? I don't think I have. >>>>> >>>>> I think you have a choice of quick recovery for time or frequency, but >>>> >>>> you >>>>> >>>>> can't get both. >>>>> >>>>> Suppose your setup has been in holdover for a while. The frequency is >>>>> slightly off. The time offset of the PPS pulse will be the integral of >>>> >>>> the >>>>> >>>>> frequency offset. >>>>> >>>>> What happens when you come out of holdover? If you fix the frequency, >>>> >>>> the >>>>> >>>>> PPS will stay off. >>>>> >>>>> Suppose the PPS has drifted by 1 ns. If you correct that in 1 second, >>>> >>>> the >>>>> >>>>> frequency will need to be off by 1E9 during that second. >>>> >>>> >>>> The RAI laboratory in Torino have made such tests and published >>>> measurements and recommendations. For a long time it was only available >>>> in italian, but there is now an english version available. >>>> >>>> Cheers, >>>> Magnus >>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] >>>> To unsubscribe, go to >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts [1] >>>> and follow the instructions there. >>>> >>>> >>>> >>>> Links: >>>> ------ >>>> [1] >>>> >>> >>> http://webmail.timeok.it/parse.php?redirect=https://www.febo.com/cgi-bin/ma >>>> >>>> ilman/listinfo/time-nuts >>>> >>> Message sent via Atmail Open - http://atmail.org/ >>> _______________________________________________ >>> 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. >>> >> _______________________________________________ >> 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. >> > _______________________________________________ > 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. _______________________________________________ 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.
