Bob wrote:
Some of these clocks and watches seem to like midnight as the magic time to synchronize. That's certainly what the Casio's do.
Mine (it's a Brookstone, I don't know who manufactured it) will go a few days without a successful sync, then it switches to trying every two hours until it successfully synchronizes. I think it will then use that time every day until you intervene manually or it has to do it again. It also seems to adjust the local XO when it has daily success -- after running awhile with daily sync, it has outstanding holdover performance.
I'm in a low-signal area, but even here signal strength does not seem to be a problem. Local interference at 60 kHz, however, is a big problem.
NIST Special Publication 960-14 (2009) gives recommended practices for WWVB-disciplined clock manufacturers and consumers. (It may have been updated or replaced since the new modulation scheme was adopted) <http://tf.nist.gov/timefreq/general/pdf/2422.pdf>
See this page for near-real-time signal monitoring status: <http://tf.nist.gov/tf-cgi/wwvbmonitor_e.cgi>
Best regards, Charles _______________________________________________ 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.
