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La Crosse Technology, Ltd  

Page 3 

 

 

Electrical storms between you and Colorado can interfere with the WWVB signal  

 

Replace battery and perform restart procedure. Allow up to 5 days to receive a 

signal. 

 

Reposition the atomic clock with the front or back facing Colorado. 

 

Try a different location, ideally near a window. The clock should be at least six 

feet from computers, TVs, air conditioners, other atomic clocks and other 

electrical appliances that cause interference. 

 

Large buildings, metal roofed buildings and buildings or rooms full of electrical 

and/or radio equipment make it difficult to receive the WWVB time signal. 

 

CLOCK IS INCORRECT BY HOURS BUT MINUTES ARE CORRECT 

 

 

This is a Time Zone issue. Hold your Time Zone button for 5 seconds. The clock 

should correct itself. 

 

Check that DST is on. Press and release the small, unmarked gray button 

between the ET and CT button one time. 

 

DAYLIGHT SAVING TIME 

 

 

Dependent on your location, the position of the clock in your home, and 

atmospheric interference, it may take up to 5 nights for the change from 

Daylight Savings Time to Standard Time and vice-versa to occur. 

 

Check that the DST selector bar is in the ON position. 

 

Check for fres

batteries

. Without proper batteries, the antenna will have a 

harder time picking up the signal.

 

 

Position the atomic clock in a window (with the front or back) facing Ft. Collins, 

Colorado and leave for up to five nights. If you do not have a window facing this 

direction, position the clock near an outside wall and point the unit in this 

general direction.  

 

MANUALLY SET TIME 

 

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.  Once the 

clock is in manual mode, there are two ways to move the minute hand forward.  

2.

 

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

3.

 

Alternatively, press and release the SET button rapidly (more than once per 

second) to move the minute hand forward step by step (in minute increments).  

4.

 

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. 

 

 

HOW LONG WILL THE BATTERY LAST? 

 

 

A good AA Alkaline battery will last over 12 months.  

 

Summary of Contents for WT-3102B

Page 1: ... Time Zones 2 Time is Incorrect 2 Clock is incorrect by Hours but minutes are correct 3 Daylight Saving Time 3 Manually Set Time 3 How long will the battery last 3 Can I shut off the WWVB signal 4 Is there a booster antenna to receive the WWVB signal in a difficult location 4 Can I wire a control timing circuit to the La Crosse Technology atomic clock 4 Why do the hands spin once or twice everyday...

Page 2: ... the clock for 15 minutes 2 Press the Set button at least 20 times to clear all memory 3 Slide the switch to select a time zone 4 Insert 1 fresh AA LR6 1 5 volt ALKALINE battery according to the polarity marked on the case 5 Position the clock on an exterior 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 ...

Page 3: ...avings Time to Standard Time and vice versa to occur Check that the DST selector bar is in the ON position Check for fresh batteries Without proper batteries the antenna will have a harder time picking up the signal Position the atomic clock in a window with the front or back facing Ft Collins Colorado and leave for up to five nights If you do not have a window facing this direction position the c...

Page 4: ... Alkaline batteries in the clock HANDS SPIN NON STOP This is indicative of a low or overpowered battery number 1 warranty issue Replace battery and perform restart procedure Allow 5 days to catch the WWVB signal If constant spinning continues the movement may need replacement HANDS JUMPS OR JERKS AROUND THE DIAL This is indicative of a low or overpowered battery number 1 warranty issue Replace bat...

Page 5: ...La Crosse Technology Ltd Page 5 appliances The optimal location is near a window Windows facing Colorado provide the best signal ...

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