> Hmmm... with 25m position accuracy (and 100ns is > about 30m), how do they really get time down to a > few ns. Clever engineering! :-)
You're comparing apples and oranges: accuracy and stability. The 25 m value you often read is probably a valid figure for the positional accuracy of an M12. But do not confuse this with the "few ns" timing value you read about here. No one I know has an M12 that is accurate to a few ns. What many of us have are M12 that exhibit residual timing jitter of a few ns, when properly sawtooth corrected and averaged over time and compared to a local cesium standard. I have M12 here that are stable to a few ns; but my guess is they are accuracte (against UTC) to a couple _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
