The Sharp SPC373 Atomic Clock is designed to synchronize automatically with the WWVB radio signal from Fort Collins, Colorado.
Below is a guide to its key functions, compiled from the available manual details: Initial Setup & Synchronization
Battery Installation: Insert 3 AAA batteries into the main unit and fresh batteries into the remote sensor, ensuring correct polarity.
Syncing: The clock may take up to 24 hours to catch the atomic signal. For the best reception, place the clock near a window overnight.
Time Zone: Press the Time button once until the time zone flashes. Use the Up/Hour button to cycle through (P-Pacific, M-Mountain, C-Central, E-Eastern) and press Time again to confirm. Button Functions Time: Hold for 2 seconds to enter manual time setting mode.
Up: Increases values during setup; hold for 3 seconds to manually force a radio signal (RC) reception test.
Down: Decreases values or switches between 12/24-hour formats. sharp atomic clock spc373 user manual
Max/Min: Displays the highest and lowest recorded temperatures; hold for 3 seconds to clear these records. ALM ON/OFF: Activates or deactivates the alarms.
Sync: Hold for 3 seconds to manually toggle the 915 MHz signal reception for the outdoor sensor. Manual Time Setting
If the clock cannot receive a signal, you can set it manually:
Press and hold the Time button for 2 seconds until the hour flashes.
Use the Up/Down buttons to adjust the hour (ensure the AM/PM indicator is correct).
Press Time again to move to minutes, year, month, and date, using the Up/Down buttons for each. Press Time one last time to save and exit. Troubleshooting the Outdoor Sensor If the outdoor temperature is not registering: The Sharp SPC373 Atomic Clock is designed to
Check Batteries: Ensure the remote sensor batteries are fresh and the contacts are free of corrosion.
Re-Sync: Press and hold the Sync button on the back of the clock to re-establish the connection with the transmitter.
Placement: Keep the sensor within range and away from large metal obstructions that might block the 915 MHz signal.
For a printable copy of the original instructions, you can visit the MZB Instruction Manuals page, which is the official distributor for Sharp clocks. Sharp SPC373 Atomic Clock Troubleshooting Guide
The Sharp SPC373 Atomic Clock Go to product viewer dialog for this item.
is a feature-rich digital wall or desk clock designed for "set-and-forget" convenience. Based on user experiences and the official manual details available via Sharp Clocks, it is a reliable information center, though it has specific quirks regarding signal synchronization and time zone management. Key Features & Design Replace batteries once per year or when low-battery
High Visibility Display: Features jumbo 3-inch tall numbers and a full-color dashboard that displays time, day, date, and temperature simultaneously.
Dual Mounting: Can be used as a wall clock with its integrated mounting hole or as a desktop clock with a built-in stand.
Environmental Monitoring: Includes a wireless outdoor sensor with a range of up to 330 feet (100 meters) to provide real-time outdoor temperature readings.
Power Options: Operates primarily on batteries (3 AA for the main unit and 2 AAA for the sensor), but supports always-on display when used with an AC adapter. Setup & Manual Highlights
The manual emphasizes several critical steps for successful initial operation: Sharp SPC373 Atomic Clock Troubleshooting Guide
The Sharp SPC373 is a desktop or wall-mountable atomic clock designed for home or office use. Its key features include: