Solid Signal > Personal Audio/Video > Atomic Analog Wall Clock
The WT3126B has a white dial, large traditional numerals, and wide hands for easy viewing. Overall diameter is 12 inches (30.5 cm). Unique among La Crosse Technology wall clocks, this one has a narrow and deep surround of real aluminum. The overall look is still traditional, but with a cool, modern accent.
- Accurate to 1 second per million years.
- Sets automatically to WWVB radio signal.
- Pushbutton selection of all four U.S. mainland time zones.
- Automatically adjusts for Daylight Savings Time.
- Manual time-set capability for use anywhere outside the WWVB signal range.
- Low battery indication via 2-second steps of second hand.
- Powered by one AA (1.5V) alkaline battery, with normal life of over 1 year (battery must be obtained separately).
- White face, traditional numerals and hands, and a narrow surround of real aluminum that fits flush to the wall
to 1second per million years
• Sets automatically to WWVB radio
• Pushbutton selection of all four U.S. mainland time zones
Automatically adjusts for daylight savings time
• Manual time-set
capability for use anywhere outside the WWVB signal range
face, traditional numerals and hands, and a narrow surround of real aluminum
flush to the wall
• Low battery
indication via 2-second steps of second hand
• Powered by one AA
alkaline battery, with normal life of over 1 year
Diameter: 12 inches (30.5cm) overall Depth: 1.5 inches (3.8cm)
(National Institute of Standards and Technology, Time and Frequency Division)
maintains a radio station, WWVB, in Ft. Collins, Colorado. The WWVB radio
station derives its signal 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.
station’s identification just like any other radio station) continuously
broadcasts time and frequency signals at 60 kHz. The carrier frequency provides
a stable frequency reference traceable to the national standard. There are no
voice announcements on the station, but a time code is synchronized with the 60
kHz carrier and is broadcast continuously at a rate of 1 bit per second using
pulse width modulation. The time code contains the year, day of year, hour,
minute, second, and flags that indicate the status of Daylight Saving Time,
leap years, and leap seconds.
Technology WT3126B Analog Atomic Clock:
The La Crosse
Technology Radio-Controlled Clock maintains its incredible accuracy by
automatically tuning into the WWVB radio signal. The built-in antenna ensures
reliable signal reception up to 2000 miles (3200km) from the WWVB transmitter.
As a result, the La Crosse Technology clock will calibrate to the atomic clock
not only throughout the mainland U.S. but also in much of Canada. You need only
insert the battery, press the appropriate time zone button, and wait until the
signal is received (overnight). In all other locations worldwide, the La Crosse
clock can be manually set and will provide the high degree of accuracy of any
quality quartz clock.
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