It s best to do this late in the evening because longwave radio signals are normally not received during the day.
Sharp atomic wall analog clock instructions.
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If you stop pressing the m set button for over 7 seconds manual setting mode is turned off.
Setting an atomic wall clock is simple.
Insert the correct number of fresh aa lr6 alkaline batteries in the battery compartment according to the polarity markings.
To access the settings screen on the sharp atomic clock hold down the time or month day buttons for three seconds then use the up and down arrows to increase or decrease the number values to the desired time or date.
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Alternatively hold down the m set button continuously and release once the correct time has been reached.