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.
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.
