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Model: WT-3143A   www.lacrossetechnology.com/support          

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Model: WT-3143A 

Instruction Manual 

DC: 031716 

14” Atomic Wall Clock 

 

 

Get Started 

 

1: Slide the switch to select a time zone and DST ON or OFF. 
2: Insert 1 fresh AA, LR6 1.5 volt ALKALINE battery according to the polarity  
    marked on the case. 
 
OPTIONAL: To extend battery life (over 3 years), insert two batteries in the 
compartment below the movement. 
 
3: For the best reception, please place clock on a wall that faces Ft. Collins,  
    Colorado. During the night, your clock will automatically set itself. 

 

Note:

 The hands will move to the 12:00 position and search for the radio signal. 

If the radio signal is not received in the first 10 minutes, 

the clock will start 

running from the 12:00 position

 and will continue to run.  Do not attempt to 

reset the hands manually even though the time on the clock is incorrect.  The 
clock is synchronizing to the WWVB signal and once the radio signal is decoded, 
the hands will automatically adjust to the correct time. This may take up to 5 
nights if there is atmospheric interference. 

 

Position Clock 

 

 

Signal reception is at its peak when there is only one wall or window 
between the clock and the outside. 

 

The antenna is best positioned for signal reception when the front or back of 
the clock faces Colorado. 

 

Choose a location 6 feet or more from electronics such as cordless phones, 
wireless gaming systems, televisions, microwaves, routers, baby monitors, 
etc., which can prevent signal reception. 

 

Large office buildings, schools, or hospitals may not receive the WWVB time 
signal in every room. 

Time Zone 

DST ON/OFF 

Summary of Contents for WT-3129B 1 Series

Page 1: ...User Manual of Product 1 La Crosse Technology WT 3143A INT 14 Inch Atomic Wall Clock Black User Manual of Product 2 La Crosse Technology WT 3129B 12 Inch Atomic Analog Wall Clock Pack of 1 Black...

Page 2: ...will start running from the 12 00 position and will continue to run Do not attempt to reset the hands manually even though the time on the clock is incorrect The clock is synchronizing to the WWVB si...

Page 3: ...e the minute hand forward until the correct time is set The clock will automatically leave manual mode after the SET button is not pressed for 6 seconds Troubleshooting The wonderful advantage of owni...

Page 4: ...synchronization occurs between 1 50 and 2 01 am every day Signal Interference In some cases the signal is affected by weather conditions and electrical interferences or the location of the clock itsel...

Page 5: ...st suitable for intended use Replace all batteries of a set at the same time Clean the battery contacts and also those of the device prior to battery installation Ensure the batteries are installed wi...

Page 6: ...all that faces Ft Collins Colorado During the night your clock will set itself IMPORTANT Hands will move to 12 00 and search for the atomic time signal If no signal after 8 10 minutes clock will run f...

Page 7: ...ove batteries from equipment which is not to be used for an extended time Promptly remove expired batteries Care and Maintenance Warranty Support La Crosse Technology Ltd provides a 1 year limited tim...

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