La Crosse Technology WT-5442 instruction manual Features of Projection Alarm, Quick SET-UP Guide

FEATURES OF PROJECTION ALARM

Operation of these features are in section III.

1.Radio-controlled time and date

2.Projection of time and/or remote temperature

3.EL backlight

4.Six modes of date/seconds/temperature display

5.Indoor temperature

6.Remote outdoor temperature

7.Dual alarms

1)Adjustable snooze

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 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 Projection alarm. However, due to the nature of the Earth’s Ionosphere, reception is very limited during daylight hours. The Projection alarm will search for a signal every night when reception is best.

The WWVB radio station receives the time data 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 detail, visit http://www.boulder.nist.gov/timefreq.htm. To listen to the NIST time, call (303)499-7111. This number will connect you to an automated time, announced at the top of the minute in “Coordinated Universal Time”, which is also known as Greenwich Mean Time (GMT). This time does not follow Daylight Saving Time changes. After the top of the minute, a tone will sound for every second. It is possible that your Projection Alarm may not be exactly on the second due to the variance in the quartz. However, the clock will adjust the quartz timing over the course of several days to be very accurate; under 0.10 seconds per day.

QUICK SET-UP GUIDE

1)Insert two AA batteries into the remote transmitter.

2)Insert three AA batteries into the projection alarm and/or plug into wall.

Note: When starting or restarting your projection alarm the remote transmitter must be started first and then your alarm. After power is supplied (either battery or AC) ensure that no buttons are pressed for 10 minutes. This will allow time for the projection alarm to communicate with the remote transmitter as well as receive the WWVB signal.

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