Sharp Atomic Clock Spc373 User Manual Jun 2026

The WWVB radio signal is weak during the daytime and can be blocked by structural elements.

Are you struggling to set up or troubleshoot your Sharp Atomic Clock SPC373? Look no further! This post provides an overview of the user manual for the Sharp Atomic Clock SPC373, a popular and highly accurate atomic clock that automatically synchronizes with atomic time signals.

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: It can take up to 24 hours to synchronize. For better results, place the clock near a window overnight, facing Colorado.

Place the clock near a window, ideally facing toward Fort Collins, Colorado (usually North/Northwest in the US). Keep the clock away from electronic devices that may cause interference, such as televisions, computers, or microwaves. The WWVB radio signal is weak during the

Clean the plastic casing with a soft, slightly damp cloth. Do not use abrasive cleaners, chemical solvents, or submerge the unit in water.

The SPC373 features an Auto DST function. Ensure the DST switch on the back is set to "ON" if you want the clock to adjust itself twice a year. 4. Setting the Alarm This post provides an overview of the user

Check your Time Zone setting. If you live on the East Coast but the clock is set to Central Time, it will remain exactly one hour behind. Follow the Time Zone setup steps above to correct this. Also, ensure the DST feature is turned ON if your region observes Daylight Saving Time. The Atomic Signal Icon Disappeared or Won't Connect

Press the Time Button again to step through hours, minutes, and calendar settings. 4. Sharp SPC373 Troubleshooting Guide