Hi To the extent that anything *is* locked, it’s been done for a lot longer than the 1980’s. Long before common view GPS, Loran-C observations (and corrections via clock trips) were used. You can look at it as a PLL, just a *very* fancy one with *very* long time constants.
Bob On Oct 11, 2014, at 10:59 AM, Magnus Danielson <mag...@rubidium.dyndns.org> wrote: > Hal, > > On 10/11/2014 08:49 AM, Hal Murray wrote: >> >> gign...@gmail.com said: >>> Is it actually possible to phase lock two oscillators together cross the >>> distance from DC to Colorado Springs? (2400 kilometers or so). ? >> >> I think so - if your clocks are stable enough. >> >> There is probably a simple rule for PLL stability based on round-trip-time >> and bandwidth (and other factors). >> >> > > Actually, the problem of mutual lock over distance was solved and described > in the 80thies. > > I can dig up the article reference from one of my books if needed. > > Cheers, > Magnus > _______________________________________________ > 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.
