csteinm...@yandex.com said: > The fact that one thing is phase-locked to another does not necessarily > mean it puts out a good, clean signal. At short time scales (tau less than > ~100 seconds), the PPS signal from any GPS receiver is noisy. At tau = > 1second, it is shockingly noisy (~5e-9), and it decreases by a nominal > factor of 10 per decade as the averaging time (tau) is made longer. By tau > = 1000 seconds, it is pretty respectable (~2e-12 if the GPS rx designers > did their job well).
and then there are hanging bridges. :) -- These are my opinions. I hate spam. _______________________________________________ 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.