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WHAT IS A RADIO-CONTROLLED CLOCK?
A radio-controlled clock synchronizes with radio signals from an atomic clock,
giving the most accurate timekeeping available. Time signals transmitted by
the National Institute of Standards and Technology (NIST) are regulated by
three atomic clocks and deviate less than one second over 3,000 years. The
NIST broadcasts the time signals (WWVB, 60 kHz) continuously from Fort
Collins, Colorado. The signals can reach a distance of 3,220 km (2,000 miles)
from the transmission point. Your radio-controlled clock will receive the signal
in any place that an AM signal can be received. However, the signal cannot be
picked up in metal or concrete structures unless the clock is positioned near
a window. In addition, some environmental conditions (see below) may affect
the reception.
For more information, please see the WWVB WEB page of NIST at:
http://www.boulder.nist.gov/timefreq/
ENVIRONMENTAL EFFECT ON RECEPTION
Like all wireless devices, the receiving ability may be affected by, but not
limited to, the following conditions:
• Long transmitting distance.
• Close proximity of mountains and valleys.
• Close proximity of tall buildings.
• Close proximity of railways, high voltage cables, etc.
• Close proximity of freeways, airports, etc.
• Close proximity of construction sites.
• Being inside concrete buildings.
• Close proximity of electrical appliances.
• Bad weather.
• Being inside moving vehicles.
• Close proximity of metal structures.
FEATURES
Clock:
•
Radio-controlled time (RC-WWVB)
• 12/24-hour time display selectable
• Seven time zones
• Daily Alarm/Snooze functions
• Day of week and month in three languages user selectable
(English, French and Spanish)
• Measures °C/°F user selectable
Outdoor Remote Sensor
•
433 MHz RF receiving frequency
• Transmission range: 70 meters/230 feet (open area)
• Low-battery indicator for outdoor remote sensor
• Wall mount or table stand
• Temperature probe
Содержание CL030066 Series
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