La Crosse Technology WT-3129B Dimensions

La Crosse Technology, Ltd Page 1

WT-3129B/WT-3129S FAQS

CONTENTS

WT-3129B/WT-3129S FAQS ........................................................................................... 1

Batteries ............................................................................................................................... 1

Atomic Clock Factory Restart ............................................................................................ 2

Supported 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? .......................................................... 4

Hands spin non-stop .......................................................................................................... 4

Hands jumps or jerks around the dial ............................................................................. 4

Hands stuck at certain time .............................................................................................. 4

Position the Clock ............................................................................................................... 4

BATTERIES

La Crosse Technology, Ltd Page 2

Explanation: Many problems are resolved with fresh batteries of the appropriate

voltage. Many items sent in under warranty work, when tested with fresh batteries.

Batteries manufactured this year will have an expiration date 10 years (or more) in

the future. Battery technology has improved and batteries will maintain voltage

longer in storage. However, the environment the batteries reside in for the 10 years

can deplete the power.

We suggest a name-brand Alkaline battery.

A minimum voltage of 1.48V is necessary for proper performance.

Use a battery dated at least six years in advance of the current year. Batteries

dated earlier than six years from now may still work, but may be unstable in

performance.

Good name-brand batteries make less noise, which reduces the chance of RF

(radio frequency) interference from the battery compartment.

ATOMIC CLOCK FACTORY RESTART

Explanation: The factory restart returns the atomic clock to an “out-of-the-box”

state and often resolves an issue.

Factory Restart:

1. Remove the battery from 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 and search for the radio signal.

If the clock does not receive the radio signal 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.

SUPPORTED TIME ZONES

This atomic clock offers four time zones: Pacific, Mountain, Central and Eastern.

La Crosse Technology®does not make an analog clock with more than four time

zones.

The atomic clock works in North America.

Outside of North America, the atomic clock will not receive a WWVB signal, but

will keep time as a quartz clock if manually set.

TIME IS INCORRECT

Indicative of non-receipt of WWVB signal

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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 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 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.

La Crosse Technology, Ltd Page 4

CAN I SHUT OFF THE WWVB SIGNAL?

No. If you manually set the time, when the clock receives a WWVB signal, that

signal will override the manual set.

IS THERE A BOOSTER ANTENNA TO RECEIVE THE WWVB SIGNAL IN A

DIFFICULT LOCATION?

No, the clock cannot work with a booster antenna.

Opening the clock or movement voids the warranty.

CAN I WIRE A CONTROL TIMING CIRCUIT TO THE LA CROSSE

TECHNOLOGY®ATOMIC CLOCK?

No, the clock cannot work on a timing circuit.

Opening the clock voids the warranty.

WHY DO THE HANDS SPIN ONCE OR TWICE EVERYDAY?

When the hands spin about the same time every day the clock is auto-correcting

the time. The hour hand should not spin more than twice around the clock.

Hands may spin if the battery is underpowered or over powered.

Use only 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 battery and perform the restart procedure. Allow up to 5 days to receive

a signal.

If the hands continue to jump, the movement may need replacement.

HANDS STUCK AT CERTAIN TIME

This is indicative of a low or overpowered battery (number 1 warranty issue).

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

signal.

Check to see if the hands may be bent.

Movement may need replacement.

POSITION THE CLOCK

This La Crosse Technology®atomic clock is designed for indoor or outdoor use.

La Crosse Technology, Ltd Page 5

INDOOR: Select a location to place the radio-controlled clock where it will be at

least six feet away from a TV, computer, air conditioner or other household

electrical appliances. The optimal location is near a window. Windows facing

Colorado provide the best signal.

Find more La Crosse Technology products on our website.it If you’re looking for quality RV electronics, visit our website.

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