Hi The basic assumption is that this is a lab gizmo and that there is indeed a static adev (or very low frequency phase noise) plot for the OCXO (or Rb). The other assumption is that this plot is quite good (say decreasing or flat to >10,000 seconds).
IF that's all true, then the "running condition" is the pll loop frequency / time constant / cross over that does not degrade that adev (or phase noise) plot with noise from the GPS. Bob On Sep 16, 2012, at 1:56 PM, Poul-Henning Kamp <p...@phk.freebsd.dk> wrote: > In message <acd158ca-d76c-4a8b-b77d-4fa691d0b...@rtty.us>, Bob Camp writes: > >> The purpose of my examples was to keep things simple and look at >> the "running condition" of the loop rather than it's performance >> while it settles down. > > But what is "running condition" ? > > I see my PLL adjust to thermal conditions during summer (A/C) and > winter (heating) and even to GPS constellation changes... > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > p...@freebsd.org | TCP/IP since RFC 956 > FreeBSD committer | BSD since 4.3-tahoe > Never attribute to malice what can adequately be explained by incompetence. > > _______________________________________________ > 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. _______________________________________________ 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.
