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The international standard for
timekeeping and the official national timepiece, the U.S.
Atomic Clock is accurate to ten billionths of a second per
day! This clock, operated by the National Institute of
Standards and Technology (NIST) in Fort Collins, Colorado, is
an electronic device that measures time by counting Cesium
atom oscillations. Cesium atomic clocks are extremely
stable and are unaffected by factors such as temperature,
pressure or humidity.
Using a
low frequency radio transmission from NIST, the U.S. Atomic
Clock sends an accurate time signal across the continental
United States. The Atomic Clocks sold here are
electronically tuned to the WWVB time signal, which is the
very same frequency that is utilized by radio and TV
stations, railroads and NASA. Recent boosts to the signal
strength have provided for improved reception, allowing
these advanced timepieces to work in your home or office.
(For more information, see NIST's website:
http://nist.time.gov/ )
This is
why you would want this incredible clock: The Atomic Clock
AUTOMATICALLY sets itself to the correct time and
date by receiving and decoding the NIST radio signal with an
internal receiver. The Atomic Clock ensures daily accuracy
to the fraction of a second by refreshing the signal several
times a day. The Atomic Clock sets itself to Daylight
Savings Time and back to Standard Time automatically.
These clocks set themselves
AUTOMATICALLY to the precise time, and date via radio
signal.
Receives time signal in all 48 contiguous states. Not for use in
Hawaii, or Alaska. CANADA
customers: not for use in Nova Scotia, New
Brunswick, Newfoundland & Labrador, Prince Edward Island,
Nunavut, Northwest Territories, or Yukon territories.
These provinces are all outside the range of the atomic time
signal broadcast from the USA.
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