How does an HP 117A "create either one"? It's a VLF Receiver that compares your local standard to WWVB, then as now.
-John ================= > Anyone doing precision time or frequency back then faced a > real problem: which second do you use? The legal one or the > stable one? Various hp products like the 117A or 5061A and > 5065A were designed to create either one, depending on the > customer needs. > > By 1972 the problem of different kinds of seconds and randomly > announced changes in the length of the second became such a > nuisance that an alternative solution was implemented. That was, > to make the atomic second the legal second, but keep atomic time > roughly in sync with the planet through the randomly announced > use of a "leap second". > > /tvb > > > > _______________________________________________ > 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. > > _______________________________________________ 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.
