On Mar 1, 2012, at 11:41 AM, Brooke Clarke <bro...@pacific.net> wrote:
>Are there any WWVB disciplined oscillators (WWVBDO)? I have a couple of Spectracom 8164 WWVB DOs running. They bounce around by a part or three in 10e10. The 8164 uses an FLL that does 1000 second counts of the internal OCXO reference vs. a 10 MHz crystal that is tightly locked to the WWVB carrier. An algorithm adjusts a DAC based on the counter results, after applying sanity checks (e.g., I think it requires two or three consecutive counts within some tolerance before it makes an adjustment). John _______________________________________________ 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.