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Model: WT-3129B   www.lacrossetechnology.com/support          

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Position Clock 

 

  For the best reception, please place clock on a wall that faces 

Ft. Collins, Colorado. The antenna is best positioned for signal 
reception when there is only one wall or window between the 
clock and outside. 

  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. 

  Buildings with a metal roof may interfere with reception.  

 

Note:  

We recommend that you change the battery every 24 

months to maintain accuracy.  Remove the battery when the clock 
will not be in use for an extended period. 

 

Manual Set Time 

 

On rare occasions, the clock may 
not be able to utilize the radio 
controlled function because of the 
strength of the signal or the 
geographic location.  In this case, 
the clock can be set manually and 
used as a regular quartz wall clock.  

Note:

 Allow up to five nights for the clock to receive the WWVB 

signal 

before

 manually setting the time.  

  

Set the clock manually: 

1. 

Hold the SET button for 3+ seconds to activate the manual 
mode.  There are two ways to move the minute hand forward.  

 

Hold the SET button down to move the minute hand 
forward consistently.   

 

Alternatively, press the SET button rapidly (more than once 
per second) to move the minute hand forward step by step 
(in minute increments).  

 

Use these features to move 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. 

Summary of Contents for WT-3129B

Page 1: ...y is installed 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 ...

Page 2: ... clock will not be in use for an extended period Manual Set Time On rare occasions the clock may not be able to utilize the radio controlled function because of the strength of the signal or the geographic location In this case the clock can be set manually and used as a regular quartz wall clock Note Allow up to five nights for the clock to receive the WWVB signal before manually setting the time...

Page 3: ...ered or over powered Daylight Saving Time The National Institute of Standards and Technology and WWVB encode a special DST bit in the WWVB transmission for DST Your clock will read this information and automatically advance the hands one hour in the spring and eleven hours in the fall If you live in an area that does not recognize DST you must slide the DST switch OFF To reactivate the DST program...

Page 4: ...line Standard Lithium or Rechargeable Batteries Always purchase the correct size and grade of battery 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 with correct polarity and Remove batteries from clock which is not to be used for an extended period of...

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