3 ms·
To be more complete and precise, they use GPS to condition a rubidium clock. For several reasons it isn't a good idea to take timing directly from GPS without
by jhayward 8y ago
To be more complete and precise, they use GPS to condition a rubidium clock. For several reasons it isn't a good idea to take timing directly from GPS without a highly stable local oscillator if you are using the output over long or continuous periods.
- dfox 8y agoAnd to be even more precise in the pre-CAE days the main source for disciplining was SDH/SONET clock of the network interfaces. It is higher stratum clock source than GPS, but as the frequency is higher it ends in more accurate PLL lock.