Filter
Top Products
FEATURES OF PROJECTION ALARM
Operation of these features are in section III.
1. Radio-controlled time and date
2. Projection of time and/or remote temperature
3. EL backlight
4. Six modes of date/seconds/temperature display
5. Indoor temperature
6. Remote outdoor temperature
7. Dual alarms
1) Adjustable snooze
ABOUT WWVB (Radio Controlled Time)
The NIST (National Institute of Standards and Technology—Time and Frequency
Division) WWVB radio station is located in Ft. Collins, Colorado, and transmits
the exact time signal continuously throughout the United States at 60 kHz. The
signal can be received up to 2,000 miles away through the internal antenna in the
Projection alarm. However, due to the nature of the Earth’s Ionosphere,
reception is very limited during daylight hours. The Projection alarm will search
for a signal every night when reception is best.
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 Projection Alarm 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.
QUICK SET-UP GUIDE
1) Insert two AA batteries into the remote transmitter.
2) Insert three AA batteries into the projection alarm and/or plug into wall.
Note: When starting or restarting your projection alarm the remote
transmitter must be started first and then your alarm. After power is
supplied (either battery or AC) ensure that no buttons are pressed for 10
minutes. This will allow time for the projection alarm to communicate with
the remote transmitter as well as receive the WWVB signal.
3