Solid Signal > Personal Audio/Video > Weather Stations
A cool gift for the punctually challenged person in your life, this La Crosse atomic clock keeps correct time all the time. The small, radio-controlled clock is calibrated daily to the atomic time standard of the NIST and displays the hour, minute and second, along with the month, date, year and day. Also displays the moon phase and the current indoor temperature (F or C), as well as outdoor temp (F or C) via an included remote transmitter. The stylish, cherry wood-framed clock features a time alarm with snooze, day-of-week display in English, French or Spanish, dual LCD screens, 12 or 24 hr. mode, time zones from GMT to -12 GMT and 3-letter identification for US time zones. Includes clock, removable foldout stand and one TX6U transmitter. Wall hanging or free standing. 8Hx12-1/5Lx1-1/5W.
- Monitors indoor temperature (°F or °C)
- Time zone setting (13 available)
- Indoor Humidity (%RH
- Projects Time on Wall or Ceiling in Easy to Read Numbers
- Projection & Arm Rotate for Proper Viewing
- Wireless outdoor temperature
- Monitors indoor temperature
- Moon phase
- Atomic time and date with manual setting
Sets automatically to WWVB radio signal (manual setting is also possible).
User-selectable 12- or 24-hour time display. Hour and minutes are separated by
a flashing colon (:) that
• Daily alarm
setting with snooze function.
• Calendar display with weekday
abbreviations in your choice of four languages: English, French, Spanish,
Time zone setting (13 available).
• Daylight saving time ON/OFF
• Moon phase (12 phase icons).
• Indoor temperature
• Outdoor temperature display via wireless remote
• Temperature displays are user-selectable for either °F
• Clock can be wall mounted, or integral foldout stand can be
extended for placement on a table or shelf.
• Clock is powered by two
AA alkaline batteries (not included), with normal life of about 1 year.
Outdoor temperature transmitter is powered by two AA alkaline batteries (not
included), with normal life of
up to 2 years.
Outdoor Temperature Transmitter
• Remote transmission of
outdoor temperature to clock via 915 MHz signals.
Indoor temperature measuring range:14.1° to 100°F
temperature measuring range: -39.8° to 139.8°F
distance:330 feet (100 meters) maximum
• Clock dimensions: 12.20
inches wide, 8.03 inches high, 1.18 inches deep (excluding foldout stand for
transmitter dimensions: 1.5 inches wide, 5.05 inches high,0.83 inch deep
(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.
The La Crosse Technology WS-8117U-IT-C
Digital Atomic Clock:
The La Crosse Technology Digital Atomic 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 batteries, wait until the
signal is received, and program the desired additional settings. In locations
outside of WWVB range, the La Crosse clock can be manually set and will provide
the high degree of accuracy of any quality quartz clock.
a nutshell, here’s how the La Crosse clock works: The clocks antenna is
specifically tuned for optimal reception of the 60 kHz time signal. The time
signal received on the antenna is demodulated by an onboard receiver, which
sends the information to the clocks CMOS microprocessor for decoding. Once your
clock has automatically set its time for the first time, it ensures continuing
accuracy by automatically tuning into the WWVB radio signal once per day at
midnight. (If no signal is detected, the clock performs its WWVB check hourly
until the signal is found.) As long as your clock is kept within transmitter
range, it will continue to display the absolutely precise time, automatically
adjusting for summer time/winter time changeovers if the daylight savings time
option is ON. Should you move your clock out of transmitter range for an
extended period of time, the clock will continue to operate as a highly
accurate quartz-controlled clock. Upon re-entering the transmitter range, your
clock will correct itself again to the precise WWVB time signal.
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