3Do Not Mix Alkaline, Standard, Lithium or Rechargeable BatteriesTroubleshootingIf the atomic alarm clock does not display the indoor temperature after 30 seconds, remove the A/C power adapter (batteries) and start the setup process again.Power the Atomic Alarm ClockThe atomic alarm clock can be powered by the 5-volt A/C adapter or batteries. A/C Power AdapterInsert enclosed 5-volt a/c power adapter into a wall outlet, then into the atomic alarm clock.Batteries1. Slide tab up and pull out to remove battery cover. Install two NEW AAA batteries (included) according to the polarity markings.Do Not Mix Old and New BatteriesDo Not Mix Alkaline, Lithium, Standard or Rechargeable BatteriesIf the atomic alarm clock does not display indoor temperature after 60 seconds, remove adapter and batteries and wait for at least 60 seconds before repeating the setup process.TimeWWVB Radio-Controlled TimeThe NIST radio station, WWVB, is located in Ft.
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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 atomic alarm clock. However, due to the nature of the Earth’sIonosphere, reception is very limited during daylight hours.
The WWVB reception icon with full signal strength will appear on screen if the reception of atomic time is successful.When powered up, the Atomic Alarm Clock will automatically try to receive the WWVB signal everythree hours, for example: 0:00, 3:00, 6:00.18:00, 21:00, but if at any of the above times it receives the signal, it won’t search again until next day at UTC 7:00, 8:00, 9:00. 10:00, 11:00. When it successfully receives a time update at UTC 7:00, 8:00, 9:00. 10:00, or 11:00, it will not look for an update again until the next day.In normal mode, push the - button for three seconds to enter manual searching for the signal. In reception mode, push the - button for three seconds to exit searching for the atomic signal.Note: During WWVB reception, all buttons will work.
When in time set or alarm set mode, the WWVB search will stop. When alarm rings, it will stop the WWVB search.
5SETUP:Alkaline batteries are recommended for use in both units. NOTE: Do not set the clock until the outdoor temperature is displayed.
1.Place batteries in the outdoor transmitter first, then into the radio-controlled clock. DO NOT PRESS ANY BUTTONS FOR 30 MINUTES.2.After 15 minutes both the Indoor and Outdoor areas on your clock should have a temperature showing. If not, remove both sets of batteries, wait 15 minutes and repeat step one.3.After 15 minutes have elapsed, the WWVB time code reception will automatically start.
This reception typically takes 10 minutes in good conditions. If after 10 minutes the WWVB time has not been received, use the “SET” key to enter the set-up mode to manually set the Time, Time Zone and Date (see manual settings below). The clock will continue to search for WWVB each hour between 12am and 6am. When the clock has successfully connected with WWVB, it will override the manually set time and date.Note: In the event of changing batteries of the unit, ensure that the batteries do not spring free from the contacts. Press any button 20 times with the batteries removed. Always wait at least 10 minutes after removing batteries before reinserting, otherwise start up and transmission problems may occur.WWVB RADIO CONTROLLED TIMEThe 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 atomic clock. However, due to the nature of the Earth’s Ionosphere, reception is very limited during daylight hours.
The atomic 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.After 15 minutes the WWVB tower icon in the clock display will start flashing in the top center of the LCD. This indicates the clock has detected a radio signal and is trying to receive it. When6the time code is received, the WWVB tower becomes permanently lit and the time will be displayed.If the tower icon flashes, but does not set the time or the WWVB tower does not appear at all, then please take note of the following: Recommended distance to any interfering sources like computer monitors or TV sets is a minimum of 6 feet (2 meters).Within ferro-concrete rooms (basements, superstructures), the received signal is naturally weakened.
In extreme cases, please place the unit close to a window and/ or point its front or back towards the Fort Collins, Colorado, transmitter.During nighttime, the atmospheric disturbances are usually less severe and reception is possible in most cases.