User manual LA CROSS TECHNOLOGY WT-2150A

[. . . ] Upon successful reception, the time and date will be set to absolutely accurate time (default to Eastern time zone). In the case of no reception keep in mind that for most locations reception during daylight hours is not possible. In this case, you may manually set the time or simply wait overnight. Your Radio Controlled Alarm Clock has five easy to use function keys: SNOOZE Bar Use of keys: · Enter the programming mode. · Select and confirm settings while in programming mode. [. . . ] 3) Press the ALM2/MIN key to set the alarm minute. 4) Exit this mode by pressing the SNOOZE bar or waiting for 15 seconds. Alarm is activated when ((1)) or ((2)) is displayed to the right of the map. To activate/deactivate an alarm, press the ALM1 or ALM2 key briefly. Display Modes Your alarm clock can be set to display (underneath the US map) either the seconds, calendar, alarm 1 time, alarm 2 time or indoor temperature. 1) Press the MODE/+ key to change the display function. 2) The display will toggle through the options. Ionosphere, reception is very limited during daylight hours. Your alarm clock 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 continually measures every second of every day to an accuracy of ten billionths of a second a 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. This atomic clock regulates the WWVB transmitter. Your Radio Controlled Alarm Clock cannot receive signals from other transmitters in the world (Germany's DCF 77, Japan's JG2AS, or England's MSF-60). Outside the United Sates, the alarm clock will keep time as a precision quartz clock. Troubleshooting The Radio Controlled Alarm Clock is designed to be simple to operate yet offer a complete range of features. Q: I inserted a battery, but the time did not set; what's wrong?A: In many areas of the country a signal cannot be received during daylight hours due to the interference of the sun. By leaving the clock alone, a signal will be found during the night and the alarm clock will be set to the General Information on WWVB Radio Controlled Time 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 your alarm clock. However, due to the nature of the Earth's absolutely correct time and date by the next morning. When a signal is received, the radio tower icon is displayed to the left of the US map. If no signal is received, there will be no tower icon. Q: Why hasn't my alarm clock picked up a signal? [. . . ] Do not use solvents as they may mark the LCD and case. · Do not expose alarm to water or high humidity. · Immediately remove low powered battery to avoid leakage and replace with one fresh AA LR6 battery. · Do not attempt to repair your alarm clock. Battery Change · It is recommended to replace the battery on an annual basis to ensure optimum accuracy or when the battery icon indicates low running power. [. . . ]