12.5 Inch Wood Atomic Analog Clock
WT-3122
Welcome to the world of radio controlled timekeeping technology. We hope you
will enjoy the convenience of never having to set your clock again and the
confidence of knowing exactly what time it is.
Since the beginning of time, man has been
fascinated with the measurement of time and has devised more accurate machines
to trap and measure time. Today, time is precisely measured in the United States
by the most accurate clock in North America, the Atomic Clock of the US National
Institute of Standards and Technology, Time and Frequency Division in Boulder,
Colorado. A team of atomic physicists continually measures 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. This atomic clock regulates the
WWVB radio transmitter located in Fort Collins, Colorado, where the exact time
signal is continuously broadcast throughout the United States at 60 kHz to take
advantage of stable longwave radio paths found in that frequency range. Radio
waves at these low frequencies use the earth and the ionosphere as a wave-guide
and follow the curvature of the earth for long distances. The built in antenna
system will receive the WWVB signal anywhere in North America within 2000 miles
of Fort Collins where long-wave radio reception is undisturbed. A microprocessor
activates the receiver and processes the time signal from Fort Collins
overnight.
Through the radio signals, La Crosse Technology
radio controlled clocks always keep precise time. The changeover from standard
time to daylight savings time, and vice versa, takes place automatically with
the same precision.
This wood clock shows the time, and automatically sets to the exact time and
is accurate to the second. There are 4 time zone settings, and a daylight
savings time option on/off button. Simple operation, just insert one AA
Battery and after the signal is received, press Time Zone button to set.
Dimensions:
Receiver: 12.5" diameter - wood
Features:
- Atomic time with manual setting
- Automatically sets to exact time
- Accurate to the second
- Automatically updates for daylight saving
time (on/off option)
- 4 time zone settings
- Simple operation: insert 1 "AA" alkaline
battery
Specifications:
- Simple Operation: Insert One “AA” Alkaline
Battery
- After signal is received, press Time Zone
button to set
- Four Time Zone Settings
- Daylight Saving Time Option On/Off
- Manual Reset Button
Power Requirements:
- Clock: One “AA” Alkaline Battery
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