On 1/16/13 6:36 AM, Thomas Laus wrote: > I have not seen this information posted to this newsgroup. The US > NIST radio station WWVB will be changing it's transmission format. The > information can be found at: > > http://www.nist.gov/pml/div688/grp40/wwvb.cfm > > The old format is still being sent twice a day until the end of > January 2013, but the station will only transmit the new phase > modulated time code after this month. It is supposed to be compatible > with the existing 'Atomic' clocks, but I have some of the original > ones that were made in China that are no longer syncing.
Heh: "A few radio controlled clocks that used information from the carrier – specifically the Spectracom NetClock and receivers manufactured by True Time during the 1970s and 1980s – will no longer be able to read the time code and will also be obsolete. To allow users of these receivers to migrate to new products, the plan for implementing the new modulation protocol includes a transition period that will extend until at least January 31, 2013." UC Berkeley's Spectracom 8170 (NetClock) is just about to celebrate its 30th birthday. While other reference clocks are now being used to provide stratum-1 service for the campus, it was always nice to have The Reference Clock That Would Not Die as a backup. It's a shame that it won't work anymore through no fault of its own, but I suppose that's the price of progress. michael _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions