10 11 12 13 14
Manual Settings
1.  Press (/ZONE to select the time zone 
P (Pacific), M (Mountain), C (Central), or E 
(Eastern).
2.  Hold down 
TIME/SET until 12 Hr flashes.
3.  Press 
)/WAVE or (/ZONE to select 
available options.
4.  Press 
TIME/SET to confirm and move on 
to the next setting.
5.  Repeat Steps 3 and 4 to set the 
hour, minute, year, month, date, and 
temperature options.
After setting the date, the clock automatically 
sets the day of the week.
n Notes:
•  The Atomic Clock will override manual 
settings if it receives a good radio signal.
•  The calendar extends from 2000 to 2099. 
The year digits do not appear on the 
main display. Hold down TIME/SET until 
12 Hr flashes, then press three more times 
to view. Press TIME/SET four times until 
you are at the original display.
•  If you do not press any key within 
10 
seconds, the clock returns to the current 
time display.
Set the Alarm
1.  Press ALM/SET. ALARM  displays and the 
alarm time shows instead of the date.
2.  Hold down 
ALM/SET until the hour digits 
flash.
3.  Press 
)/WAVE or (/ZONE to set the 
hour.
4.  Press 
ALM/SET to confirm.
5.  Repeat Steps 3 and 4 to set the minutes.
6.  Slide 
ALARM ON/OFF to ON. 
 appears.
At the set alarm time, the clock produces a 
series of beeps for 1 minute. Beep sequence is 
listed on page 10.
Duration Alarm
0-9 seconds one beep per second
10-29 seconds two beeps per second
30-59 seconds four beeps per second
Snooze
When the alarm sounds, press SNOOZE/
LIGHT on top of the clock to silence the alarm 
for 5 minutes. 
¼ and   flash. After 5 minutes, 
the alarm sounds again. You can repeatedly 
use the snooze feature as many times as you 
like. To stop snooze, press any button except 
SNOOZE/LIGHT. ¼ disappears.
n Note: Your clock must be on a solid, 
flat surface so the pressure switches on 
the bottom are triggered when you press 
SNOOZE/LIGHT. Otherwise, you may not 
activate the snooze and backlight functions.
Stop the alarm until the next day:
Press any button except 
SNOOZE/LIGHT. 
 remains on the display and the alarm will 
sound again at the set time the next day.
Turn off the alarm completely:
Slide 
ALARM ON/OFF to OFF.   disappears.
RESET
If your clock stops working properly, use a 
straightened paper clip 
to press 
RESET on the 
bottom of your clock. 
All display segments 
briefly appear, then the 
clock starts searching 
for a signal.
Specifications
Atomic frequency  ...................................... 60kHz WWVB
Power source ......................................... Two AA batteries
Temperature range ...................... -10°~50°C (14°~122°F)
Dimensions (H×W×D) ............................
2Ã × 6Ë × 2 in. 
.............................................................(66 × 154 × 50 mm)
Weight .......................................................... 8.1 oz (230 g)
Specifications are subject to change and improvement 
without notice. Actual product may vary from the images 
found in this document.
Recycle Rechargeable Batteries
Placing rechargeable batteries in 
the trash can be harmful to the 
environment. Instead, recycle 
old rechargeable batteries at your local 
RadioShack store free of charge. RadioShack 
participates in the RBRC© battery recycling 
program, and is committed to preserving the 
environment and conserving natural resources. 
Call 1-800-THE-SHACK (1-800-843-7422) for 
more information.
FCC Information
This equipment has been tested and found to comply with the limits 
for a Class B digital device, pursuant to Part 15 of the FCC Rules. These 
limits are designed to provide reasonable protection against harmful 
interference in a residential installation. This equipment generates, uses, 
and can radiate radio frequency energy and, if not installed and used in 
accordance with the instructions, may cause harmful interference to radio 
communications. However, there is no guarantee that interference will 
not occur in a particular installation. If this equipment does cause harmful 
interference to radio or television reception, which can be determined by 
turning the equipment off and on, the user is encouraged to try to correct 
the interference by one or more of the following measures:
•  Reorient or relocate the receiving antenna.
•  Increase the separation between the equipment and receiver. 
•  Connect the equipment into an outlet on a circuit different from that to 
which the receiver is connected. 
•  Consult your local 
RadioShack store or an experienced radio/TV 
technician for help.
If you cannot eliminate the interference, the FCC requires that you stop 
using your equipment. Changes or modifications not expressly approved 
by 
RadioShack may cause interference and void the user’s authority to 
operate the equipment.
FCC Declaration of Conformity
This device complies with Part 15 of the FCC rules. Operation is subject 
to the following two conditions: (1) This device may not cause harmful 
interference, and (2) This device must accept any interference received, 
including interference that may cause undesired operation.
Product Atomic Alarm Clock
Model 63-246
Responsible Party
RadioShack 
300 RadioShack Circle
 
Fort Worth, TX 76102
Phone 817-415-3200
Limited Warranty
RadioShack warrants this product against defects in materials and 
workmanship under normal use by the original purchaser for 
ninety (90) 
days after the date of purchase from a RadioShack-owned store or an 
authorized 
RadioShack franchisee or dealer.  RADIOSHACK MAKES NO 
OTHER EXPRESS WARRANTIES.
This warranty does not cover: (a) damage or failure caused by or 
attributable to abuse, misuse, failure to follow instructions, improper 
installation or maintenance, alteration, accident, Acts of God (such 
as floods or lightning), or excess voltage or current; (b) improper or 
incorrectly performed repairs by persons who are not a 
RadioShack 
Authorized Service Facility; (c) consumables such as fuses or batteries; (d) 
ordinary wear and tear or cosmetic damage; (e) transportation, shipping 
or insurance costs; (f) costs of product removal, installation, set-up service, 
adjustment or reinstallation; and (g) claims by persons other than the 
original purchaser.
Should a problem occur that is covered by this warranty, take the 
product and the 
RadioShack sales receipt as proof of purchase date to 
any 
RadioShack store in the U.S.  RadioShack will, at its option, unless 
otherwise provided by law: (a) repair the product without charge for 
parts and labor; (b) replace the product with the same or a comparable 
product; or (c) refund the purchase price. All replaced parts and products, 
and products on which a refund is made, become the property of 
RadioShack.  New or reconditioned parts and products may be used 
in the performance of warranty service.  Repaired or replaced parts and 
products are warranted for the remainder of the original warranty period.  
You will be charged for repair or replacement of the product made after 
the expiration of the warranty period.
RADIOSHACK EXPRESSLY DISCLAIMS ALL WARRANTIES AND CONDI-
TIONS NOT STATED IN THIS LIMITED WARRANTY.  ANY IMPLIED WAR
-
RANTIES THAT MAY BE IMPOSED BY LAW, INCLUDING THE IMPLIED 
WARRANTY OF MERCHANTABILITY AND, IF APPLICABLE, THE IMPLIED 
WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, SHALL EXPIRE 
ON THE EXPIRATION OF THE STATED WARRANTY PERIOD. 
EXCEPT AS DESCRIBED ABOVE, 
RADIOSHACK SHALL HAVE NO 
LIABILITY OR RESPONSIBILITY TO THE PURCHASER OF THE PRODUCT 
OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY 
LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY 
USE OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF 
ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED 
TO, ANY DAMAGES RESULTING FROM INCONVENIENCE AND ANY 
LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT AND ANY 
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, 
EVEN IF 
RADIOSHACK HAS BEEN ADVISED OF THE POSSIBILITY OF 
SUCH DAMAGES.
Some States do not allow limitations on how long an implied warranty 
lasts or the exclusion or limitation of incidental or consequential 
damages, so the above limitations or exclusions may not apply to you.  
This warranty gives you specific legal rights, and you may also have other 
rights which vary from State to State. You may contact 
RadioShack at:
RadioShack Customer Relations 
300 RadioShack Circle, Fort Worth, TX 76102    04/08
www.RadioShack.com
Protect the environment by recycling used electronics.   
Go to E-CyclingCentral.com to find an electronic recycling 
center near you.
Printed
 
in China
04A09
63-246
©2009. 
RadioShack Corporation.  
All rights reserved. RadioShack and RadioShack.com are 
trademarks used by RadioShack Corporation.
Pressure 
Switch