Re: [ntp:questions] New 60 KHz WWVB Time Format
Hi Tom, On 01/16/2013 03:36 PM, 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. The WWVB new format has been covered in several lengthy threads on the time-nuts email-list during the last half-year or so. Look in the archives. Some of the high-precision time and frequency receivers will require modifications to handle the new format. Cheap receivers will keep working. Cheers, Magnus ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
[ntp:questions] New 60 KHz WWVB Time Format
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. Tom -- Public Keys: PGP KeyID = 0x5F22FDC1 GnuPG KeyID = 0x620836CF ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
Re: [ntp:questions] New 60 KHz WWVB Time Format
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
