La Crosse Technology WS-9118U - Manual (Page 3)

3
Moon Phase
and Date LCD
INVENTORY OF CONTENTS
1. The WS-9118U weather station (Figure 1).
2. One TX7U remote temperature/humidity sensor (Figure 2).
3. Mounting hardware
4. Instruction manual and warranty card.
ADDITIONAL EQUIPMENT (not included)
1. Three fresh AA 1.5V batteries for the indoor weather station.
2. Two fresh AA 1.5V batteries for the remote temperature/humidity sensor.
3. One Philips screwdriver for mounting.
ABOUT WWVB (Radio Controlled Time)
The NIST (National Institute of Standards and Technology—Time and Frequency Division) WWVB radio station is located in Ft.
Collins, Colorado, and transmits the exact time and date 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. The WWVB radio station derives its signal from the NIST Atomic clock in Boulder, Colorado. A team of atomic
physicists is continually measuring every second, of every day, to an accuracy of ten billionths of a second per day. These
physicists have created an international standard, measuring a second as 9,192,631,770 vibrations of a Cesium-133 atom in a
vacuum. For more information on the atomic clock and WWVB please see the NIST website at
http://www.boulder.nist.gov/timefreq/stations/wwvb.htm.
Figure 1
Time LCD
Forecast LCD
Indoor LCD
Outdoor LCD
Figure 2
Heat index and
Dew point LCD
Battery cover
Battery compartment