                                   Notice

   NIST Radio Station WWVB will be conducting a test of a phase-modulated
   broadcast format beginning at 1800 UTC (12:00 noon MDT) Tuesday, May 29
   to 1800 UTC on Wednesday, May 30 2012.  The normal broadcast format
   will then be restored for a two-hour period.  The test will then resume
   at 2000 UTC (2:00 PM MDT) and end at 1800 UTC, Thursday, May 31 2012.
   Radio-controlled clocks and watches will not be affected.
   Phase-locking 60 kHz timing and frequency standard receivers may lose
   lock during the test.  For more information, call WWVB broadcast
   manager John Lowe at 303-497-5453, or email [1]john.lowe@nist.gov.

References

   1. mailto:john.lowe@nist.gov
