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Model: BBB87740   www.lacrossetechnology.com/support      

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itself perfectly. If it does not receive a time signal, consider the following: 

 

Battery: 

The clock must have a fresh battery to receive and process 

the time signal. 

 

Location: 

Try a different location, ideally near a window. Your clock 

should be at least six feet from computers, TVs, air conditioners, 
other radio-controlled clocks and other electrical appliances that 
cause interference. 

 

Weather: 

Electrical storms between you and Colorado during the 

night will interfere with the WWVB signal. 

 

Care and Maintenance 

  

 

Do not mix old and new batteries

 

 

Do not mix Alkaline, Standard, Lithium or Rechargeable 
Batteries

 

 

Always purchase the correct size and grade of battery most 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 equipment with is not to be used for an 
extended period of time. 

 

Remove used batteries promptly. 

 

Do not expose to extreme temperature, vibration or shock.  

 

Clean with a soft damp cloth. Do not use solvents. 

 

The product is not a toy. Keep it out of reach of children. 

 

The product is not to be used for medical purpose or for public 
information. It is intended for home use only. 

 

The specs of this product may change without prior notice. 

 

Improper use or unauthorized opening of housing voids warranty. 

 

Warranty and Support Information 

 

La Crosse Technology, Ltd. provides a 1-year limited time warranty (from 
date of purchase) on this product relating to manufacturing defects in 
materials & workmanship.  
 
View full warranty details online at: 

www.lacrossetechnology.com/warranty_info.pdf  
 
For warranty work, technical support or other information contact: 

La Crosse Technology, Ltd 
2830 26

th

 Street S. 

La Crosse, WI 54601 
 

Summary of Contents for BBB87740

Page 1: ...or the radio signal If the radio signal is received the time will set If the signal is not received the clock will stay at the 12 00 4 00 or 8 00 position and search for the WWVB time signal on the even hours Once the radio signal is decoded the hands will automatically adjust to the correct time This may take up to 5 nights Step 5 The default time zone is Pacific Time If the clocks sets itself an...

Page 2: ... 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 Remove battery for 15 minutes and press the Manual Set Button 20 times 2 After 15 minutes insert the battery and allow the clock to spin to 12 00 4 00...

Page 3: ...er to gently turn the temperature or humidity sensor screw at the back of the clock until desired setting has been reached 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 Arizona If y...

Page 4: ...WWVB signal that signal will override the manual set Q Is there a booster antenna to receive the WWVB signal in a difficult location A No the clock cannot work with a booster antenna Opening the clock or movement voids the warranty Q Can I wire a control timing circuit to the La Crosse Technology atomic clock A No the clock cannot work on a timing circuit Opening the clock voids the warranty Q Why...

Page 5: ...those of the device prior to battery installation Ensure the batteries are installed with correct polarity and Remove batteries from equipment with is not to be used for an extended period of time Remove used batteries promptly Do not expose to extreme temperature vibration or shock Clean with a soft damp cloth Do not use solvents The product is not a toy Keep it out of reach of children The produ...

Page 6: ...nna 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 the dealer or an experienced radio TV technician for help This device must not be co located or operating in conjunction with any other antenna or transmitter Operation is subject to the following two conditions 1 this devic...

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