Radio-controlled clocks use a signal from WWVB, a radio station in Boulder, Colorado. The clocks set themselves with this signal. The timekeeping for the signal is regulated by an atomic clock---the most accurate form of timekeeping ever. The advantage of a radio-controlled clock like this is that you don't ever have to worry about adjusting the clock---assuming you can get a signal.
Instructions
1. Insert a fresh set of batteries and press the WWVB Search button. The radio will start to look for the WWVB signal.
2. Take a look at the screen and make sure the little antenna-type radio station icon is flashing. If the icon isn't flashing and has gone solid then the radio has discovered the signal and you don't need to perform any further action. If the icon continues to flash for some minutes, it's having a problem finding the signal and you should try moving the radio. Move it away from any possible interference like televisions and get the unit closer to a window--preferably a window on the side of your home facing Colorado.
3. Wait an hour if the clock hasn't found the signal because it will try again repeatedly. It will try five times.
4. Press the WWVB Search button before you go to bed if the radio still hasn't found a signal. The radio may get the signal at night when propagation is better. In any case, it checks the time nightly at 1:00 a.m. to correct any deviations.
5. Program the radio manually if it can't pick-up the signal. Press and hold the Set button for two seconds. Use the Up and Down buttons to choose 12- or 24-hour mode and then press Set to confirm. The hour display will start to flash.
6. Use the Up and Down buttons to set the hour. Follow this procedure through the minutes, year, month and day until they are all set.
7. Press Set to confirm and end the setting procedure. The clock will go into clock mode.
Tags: Down buttons, found signal, hasn found, hasn found signal, icon flashing, radio station, Search button