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Model: WS-1517 www.lacrossetechnology.com/support 8
Month/Day/Year or Day/ Month/ Year
Current UTC (Universal Coordinated Time Simply press and release the SET button to change the display of the
weather station (when the clock and alarm icon is flashing)
WWVB Radio-controlled Time Signal
The radio controlled weather station searches for, and periodically synchronizes to, the NIST (National Institute of
Standards and Technology) atomic clock signal transmitted from Ft. Collins, Colorado, throughout the entire continental
United States.
The NIST radio station, WWVB, is located in Ft. Collins, Colorado and transmits the exact time signal continuously
throughout the United States at 60 kHz. The signal can be received up to 2,000 miles away through the internal antenna
in the weather station. However, due to the nature of the Earth’s Ionosphere, reception is very limited during daylight
hours. The weather station will search for a signal every night when reception is best.
During nighttime hours, atmospheric conditions improve radio signal reception. A single daily reception is sufficient
enough to keep the clock accuracy within milliseconds.
The weather station should be positioned 6 feet (2 meters) from interference sources such as a TVs, computers,
microwaves, etc.
The signal reception is weakened within concrete walls found in basements or office buildings. Place the weather
station near the window for best reception.
It takes between 24 and 72 hours for the clock to receive an atomic time signal reception
Once the atomic time signal is received, the date and time will be set automatically, and the icon will appear. The weather
station is programmed to search for the atomic time signal daily each hour between 1:00 am and 4:30 am. Once the time
signal has been successfully received, the time and date will be updated automatically.
Manual Signal Search
With the clock and alarm icon flashing, hold the UP arrow for three seconds to manually search for the WWVB signal. A
triangular tower icon will start flashing next to the clock icon.
Searching for WWVB signal Strong WWVB signal
Weak WWVB signal No WWVB signal for 24 hours
Time Alarm
You can choose a time alarm that goes off at the same time every day M-F (weekly alarm), or a single event (single alarm)
time alarm. The snooze feature is programmable for up to 15 minutes and works for the same duration on either alarm.
Alarm/Snooze Time Set
1. With the clock and alarm icon flashing, press the ALARM/CHART button to select the desired alarm.
2. Hold the ALARM/CHART button and the hour will flash.
3. Set the alarm hour using UP or DOWN arrow button. Press and hold either arrow button for quick digit advance.
4. Press the ALARM/CHART button to confirm selection then the minutes will flash.
5. Set the alarm minutes using UP or DOWN arrow button. Press and hold either arrow button for quick digit advance.
6. Press the ALARM/CHART button to confirm selection. Next the snooze interval will flash.
7. Set a Snooze interval using UP or DOWN arrow button. Press and hold either arrow button for quick digit advance.
Note: both alarms share same snooze time duration
8. Press the ALARM/CHART button to confirm your selection.
9. When programming is completed, the weather station will return to the alarm selection screen.
Activate/Deactivate Time Alarms
1. Press the ALARM/CHART button to display the single day alarm or weekday alarm time.
2. If these alarms are not set, the abbreviation OFF will be displayed.