Radio Shack 63-246 User Manual

Atomic alarm clock, Features, Check package contents

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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

1

Select a Location

• 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.

2

Install Batteries

1. Press the tab to

remove the battery

compartment cover.

. Insert two AA

batteries (not

included) matching

the polarity

symbols (+ and –)

marked inside.

. Replace the cover.

Replace batteries when the display dims.

Battery Notes

• Dispose of batteries promptly and properly.

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

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.

. One of the signal reception indicators

flashes during signal search.

Weakest

Weaker

Weak

Normal

Strongest

. If reception succeeds, date and time are

updated automatically, and displays

until the next reception cycle.

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

Atomic Alarm Clock

User’s Guide

-

)/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.

SNOOZE/LIGHT

• Press to turn on the

backlight for 5 seconds.

• When the alarm sounds,

press once to stop the

alarm for 5 minutes.

ALM/SET

Set alarm or switch

between viewing the

month/date and alarm

time.

ALARM ON/OFF

Turn alarm on or off.

TIME/SET

Set time, year, month,

date, and temperature

reading.

(/ZONE

• Decrease settings in

the time and alarm

modes.

• Select the desired

time zone.

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

updated for the day.

n

Notes:

• 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

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.

Clock Time

12 or 24 hour format.

Day of the Week

Month and Day or

Alarm Time

Temperature

˚C or ˚F

Time Zone

Signal Reception Indicator

Alarm On

Snooze On

Daylight Saving Indicator

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