Radio Shack Atomic Clock Instructions and Features Guide

User’s Guide 63-246

Atomic Alarm Clock

Thank you for purchasing your Atomic Alarm Clock from RadioShack. Please read this user’s guide before installing, setting up, and using your new clock.

Features

•Radio controlled clock receives signal from WWVB 60kHz and adjusts time and date automatically.

•LED backlight.

•4 time zone settings.

•Daylight saving time.

•Alarm and snooze function.

•Indoor temperature with Celsius or Fahrenheit option.

Check package contents

• Atomic Clock • Quick Start

• User’s Guide

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Install Batteries

1.Press the tab to remove the battery compartment cover.

2.Insert two AA batteries (not included) matching the polarity symbols (+ and –) marked inside.

3.Replace the cover.

Replace batteries when the display dims.

Battery Notes

• Dispose of batteries promptly and properly.

SNOOZE/LIGHT

•Press to turn on the backlight for 5 seconds.

•When the alarm sounds, press once to stop the alarm for 5 minutes.

TIME/SET	ALM/SET
Set time, year, month,	Set alarm or switch
date, and temperature	between viewing the
reading.	month/date and alarm
	time.

ALARM ON/OFF

Turn alarm on or off.

(/ZONE

• Decrease settings in the time and alarm modes.

• Select the desired time zone.

)/WAVE

•Increase settings in the time and alarm modes.

•In the normal time display, press for 3 seconds to activate the manual signal search. Press again to turn it off.

Set Time and Date

Automatic Settings

1.After batteries are installed, the clock starts searching for the WWVB signal from the atomic clock in Fort Collins, Colorado.

2.One of the signal reception indicators flashes during signal search.

Weakest Weaker Weak Normal Strongest

3.If reception succeeds, date and time are updated automatically, and displays until the next reception cycle.

6:00 a.m. It stops the update once the time is updated for the day.

ZWNotes:

• The radio signal search takes

approximately 10 minutes after batteries

are installed or when RESET is pressed.

If you want to set the time and date

manually, press )/WAVE to stop signal

search at any time.

• The clock automatically adjusts the

daylight saving time (DST) upon receipt

of a signal, and displays. If you are

in an area that does not recognize DST,

change the time zone on your clock until

it matches the correct hour.

• During the radio signal search, all function

•Place your clock near a window.

•Do not place in direct sunlight, next to heat or cold sources such as stoves and freezers, or heating vents.

•Keep the clock away from high power cables, TVs, microwaves, refrigerators, computers, and metal furniture.

•Your atomic clock will not work in Alaska or Hawaii.

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Do not burn or bury them.

• Use only fresh batteries of the required size

and type.

• Do not mix old and new batteries, different

types of batteries (alkaline, or rechargeable), or

rechargeable batteries of different capacities.

• If you do not plan to use the atomic clock,

remove the batteries. Batteries can leak

chemicals that can damage electronic parts.

3

Signal Reception Indicator Snooze On

Clock Time

12 or 24 hour format.

Alarm On

4

Daylight Saving Indicator Time Zone

Temperature

˚C or ˚F

Month and Day or

Alarm Time

Day of the Week

5

If the reception fails, no signal indicator appears. Hold down )/WAVE for 3 seconds to receive signal manually. If it still fails, follow “Manual Settings” on page 8 to set the date and time.

The clock automatically updates the atomic time daily at 3:00 a.m., 4:00 a.m., 5:00 a.m., or

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keys stop working except SNOOZE/LIGHT.

• Signal reception might be affected if your

clock is placed in a basement or anywhere

near large metal structures (tall buildings,

freeways, airports, or railways).

• On very cloudy and stormy days, the radio

signal might not be strong enough to set

the clock.

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