I'm so sorry for the inconvenience but I wasn't aware of this CTIA supreme piece of test equipment... now I know. This CTIA is mainly intended for very high speed serial interconnect and Gigabit ethernet test.
On Wed, May 2, 2012 at 11:18 PM, Tom Knox <[email protected]> wrote: > > I cannot believe my Guidetech GT4000 was left off your list. > > > Thomas Knox > > > > > Date: Wed, 2 May 2012 22:11:25 +0200 > > From: [email protected] > > To: [email protected] > > Subject: Re: [time-nuts] Setting up PRS10 with M12+T GPS > > > > On 05/02/2012 10:03 PM, Azelio Boriani wrote: > > > You don't have a Cs reference but you have a GPS: in the long term it > is > > > the same. By using a TIC (your preferred: HP5370B, HP5372A, SR620, > PM6680, > > > PM6681, HP53132A, Racal 2351, Yokogawa TA720, PICTIC II, Wavecrest > DTS275 > > > [SIA3000?] and others) keep track of the GPS PPS vs. the PRS10 PPS. > > > > Considering the M12+T PPS noise, you won't need anything stellar. A > > PICTIC II will do just fine... or if you trust the PRS-10 readings, run > > from that. > > > > What would make this better would to use a sawtooth-correction to PPS > > delay setup, as the PRS-10 measurement resolution will be about on par > > with that. Would lower the effects of hanging-bridges, even if one > > suffers less when dealing with a rubidium. > > > > Adjust the PRS-10 PLL bandwidth/time-constant, the default value is most > > probably not optimum, you can go further up in time. Do check the manual. > > > > Cheers, > > Magnus > > > > > On Wed, May 2, 2012 at 9:46 PM, Jerry Mulchin<[email protected]> > wrote: > > > > > >> I need some guidance from the collective. > > >> > > >> I just finished rebuilding my PRS10 lab standard and it is now using a > > >> M12+T GPS module. > > >> I have completed my site survey and it is now in "hold position mode", > > >> TRAIM is enabled > > >> with 500ns alarm setting and the 1PPS is enabled during non-TRAIM > alarm > > >> conditions. > > >> > > >> The PRS10 is set for default 1PPS steering, but all of the other > > >> parameters are just as > > >> I received the unit 5 years ago. > > >> > > >> My questions are these; > > >> > > >> 1.) Should I reset the PRS10 to its Default settings or just adjust > > >> selected parameters to > > >> align the unit for proper operation with the M12+T unit? And if that > is > > >> the case, what parameters > > >> need adjusting? > > >> > > >> 2.) Are there any special settings, other than what WinOncore sets, > that I > > >> should make to the > > >> M12+T unit? > > >> > > >> 3.) After all this is completed, how do I know that the PRS10 is > properly > > >> tracking GPS and > > >> maintaining frequency accurately? I don't have a Cesium reference, > but I > > >> do have an un-disiplined > > >> LPRO-101, but I don't think that really helps me determine frequency > > >> accuracy. > > >> > > >> I will be adding the sawtooth correction eventually to the M12+T 1PPS > > >> output, but observed > > >> negative sawtooth with WinOncore shows +/- 14ns changes with some > bridging > > >> occasionally. > > >> > > >> While I don't ever want to claim NIST traceability, I would like to > be a > > >> close as possible, and I > > >> guess that is the bottom line need here. So what else do I need to do > to > > >> get as close as possible? > > >> > > >> Thanks for any help. > > >> > > >> > > >> > > >> > > >> Jerry Mulchin > > >> > > >> > > >> > > >> _______________________________________________ > > >> 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. > _______________________________________________ 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.
