12
The WWVB radio station receives the time data from the NIST Atomic clock in Boulder,
Colorado. A team of atomic physicists is continually measuring every second, of every day,
to an accuracy of ten billionths of a second per day. These physicists have created an
international standard, measuring a second as 9,192,631,770 vibrations of a Cesium-133
atom in a vacuum. For more detail, visit http://www.boulder.nist.gov/timefreq.htm. To listen
to the NIST time, call (303)499-7111. This number will connect you to an automated time,
announced at the top of the minute in “Coordinated Universal Time”, which is also known as
Greenwich Mean Time (GMT). This time does not follow Daylight Saving Time changes.
After the top of the minute, a tone will sound for every second. It is possible that your
wireless weather station may not be exactly on the second due to the variance in the
quartz. However, the clock will adjust the quartz timing over the course of several days to
be very accurate; under 0.10 seconds per day.
MANUAL SETTINGS:
The following manual settings can be done in the setting mode:
•
Time zone setting
•
Daylight Saving Time ON/OFF setting
•
Manual time setting
•
Calendar setting
•
°C/ °F setting
Press and hold the SET key for about 3 seconds to advance to the setting mode:
