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
[email protected]
http://lists.ntp.org/listinfo/questions
