La Crosse Technology C85183 - Manual (Page 4)

4
IMPORTANT: To limit interference, the LCD backlight & USB charging functions are suspended during
WWVB atomic signal synchronization, which occurs after midnight. They will resume after a 4-8 minute
signal search.
Note: In case the atomic alarm clock is not able to detect the WWVB-signal (disturbances, transmitting
distance, etc.); the time can be manually set in the program menu.
NIST radio station, WWVB, is
located in Ft. Collins, Colorado and transmits the exact time signal continuously throughout the
Function Buttons
Button Press and Release Functions Hold 3 seconds
°F/°C SET Move through program menu (setup)
Select temperature in °F/°C Enter program menu, set time,
date, etc. (setup)
ALARM Once: View Alarm
Twice: Activate or Deactivate Alarm Alarm set
+ 1 step forward (setup) Fast advance (setup)
_ 1 step backward (setup) Fast backward (setup)
WWVB Search
LIGHT
(HI-LOW-OFF)
SNOOZE
Once: Backlight low (A/C)
Twice: Backlight OFF (A/C)
3rd time: Backlight ON (A/C)
Activate backlight for 10 seconds
(battery power)
Trigger snooze (alarm active)
Program Menu
The program menu allows you to select your preferences:
 WWVB Reception ON/OFF
 Time Zone
 Daylight Saving Time Indicator ON/OFF
 12/24-Hour Time Format
 Hour
 Minutes
 Year
 Month
 Date
WWVB Reception ON/OFF
The °F/°C SET button will move through the program menu. The
+ or - buttons will change a value.
1. Hold the °F/°C SET button 5 seconds. WWVB and the word ON will flash.
2. Press and release the + or - buttons to turn this to OFF if you do not wish WWVB
reception.
3. Confirm with the °F/°C SET button and move to the time zone.
Time Zone
The time zone is defaulted to Eastern Time (EST). Select your time zone and the atomic alarm clock will
set the time correctly after receiving the WWVB time signal.
1. EST will flash.
ON
WWVB
EST