Sharper Image SN004 User Manual
Hadrons™ Desktop
U.S. Atomic Clock
& Weather Station
SN004 Instructions
Read and save these instructions.
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Table of Contents
What is Atomic Radio Control? ..................................................5
Parts Diagram ............................................................................6
Batteries ....................................................................................7
Setting the Atomic Time and Date ..............................................7
Setting the Clock ......................................................................10
Weather Station .......................................................................13
Head H1 or H2
5
What is Atomic Radio Control?
The most precise time keeping device on earth is the atomic clock.
It keeps time to the accuracy of better than 1 second for every million years. The atomic clock is a huge piece of scientific equipment
and it is so expensive that it is normally found in laboratories and
standards institutions, etc. Thanks to the latest technology, the accuracy of the atomic clock is now brought to your home. The NIST
(National Institute of Standards and Technology) broadcasts electronically encoded time signals based on an atomic clock from an
antenna in Fort Collins, Colorado that covers the continental United
States. The signal is picked up by the radio receiver circuit in your
clock, then decoded to synchronize the time to split-second precision. The radio signal automatically sets the calendar and daylight
saving or standard time too.
Figure 1:
Atomic radio-controlled
time-signal transmission
and reception.
Note: The clock is for use in the continental USA only. In Alaska
and Hawaii, the radio signal may not be strong enough for synchronization and therefore the clock can only be used as a normal
quartz clock that can be set manually.
Parts Diagram
6
What is Atomic Radio Control?
Figure 2:
Front view
of clock.
Figure 3: Back view of clock.
Figure 4:
Front view
of clock.
(Weather
Forecast)
Figure 5: Front view of clock.
(Weather Forecast)
Antenna
Icon
Add
Sub
DST
Reset
Set
Snooze
Light
Mode
Battery Door
Up °C/°F
Down
Reset
Set
Light
Battery Door
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