The Chouchin CH-899 is a precision radio-controlled (RC) clock movement designed to synchronize with atomic time signals (such as MSF in the UK, DCF77 in Europe, or WWVB in North America) for near-perfect accuracy. Key Setup Instructions
Preparation: Before inserting the battery, ensure any shipping pins holding the hands in place are removed.
Battery Insertion: Insert a fresh 1.5V AA alkaline battery, ensuring correct polarity ( −negative Automatic Synchronization:
Once the battery is in, the hands will spin quickly and stop at the 12:00 position.
The clock will then enter "Signal Receiving Mode," which can take between 3 and 15 minutes.
Once a signal is found, the hands will automatically move to the correct local time. Manual Controls & Troubleshooting
If the clock does not set automatically, use the buttons on the back of the movement:
Manual Setting ([M.SET]): Press and hold for 3 seconds to enter manual mode. Continue holding or pressing to advance the hands to the desired time.
Force Reception ([REC]): Press and hold for 3 seconds to force the clock to search for a radio signal. The hands will return to 12:00 to begin the search.
Reset: A hard reset can often be performed by short-circuiting two small pins or pressing a Reset button with a paperclip. ch-899 chouchin radio controlled clock instructions
Signal Tips: If the clock fails to sync, place it near a window or an external wall, away from electronic interference like TVs or computers. Maintenance
Low Battery Indicator: On some models, the second hand may stop at the 6:00 position to indicate low power.
Annual Care: It is recommended to replace the battery annually, even if the clock is still running, to prevent leak damage.
To set up your Chouchin CH-899 radio controlled clock , you must first select your time zone and DST preference on the back of the movement, insert a fresh 1.5V AA battery, and then allow the hands to automatically fast-forward to the 12:00 position while the device searches for a time signal. The CH-899 movement, often identified as a sweep radio controlled mechanism, is designed to sync with atomic time signals like MSF or WWVB, ensuring accuracy within one second over millions of years. Initial Setup Instructions
Select Your Time Zone: Use the switches on the back to set your local time zone (e.g., P for Pacific, M for Mountain, C for Central, E for Eastern).
Toggle DST: Ensure the Daylight Savings Time (DST) switch is set to "ON" or "OFF" based on your local requirements.
Insert Battery: Place one new 1.5V AA alkaline battery into the compartment, noting the correct +/- polarity.
Automatic Synchronization: The hands will automatically advance to 12:00, 4:00, or 8:00 and stop. The clock is now in "set-up mode" and will search for a radio signal, which may take anywhere from a few minutes to several days. Manual Setting Procedures
If the clock cannot receive a signal in your location, you can set the time manually to use it as a standard quartz clock: The Chouchin CH-899 is a precision radio-controlled (RC)
Entering Manual Mode: Press and hold the [M. SET] button for approximately 3 to 5 seconds until the hands begin to move. Adjusting Time:
Rapid Advance: Keep pressing the button to make the hands spin quickly.
Fine-Tuning: Release the button near the correct time, then press it repeatedly to advance the minute hand one minute at a time.
Saving Settings: Stop pressing the button for at least 7 seconds. The clock will exit manual mode and begin normal timekeeping. Force Signal Reception
If the clock is displaying the wrong time, you can manually trigger a search for the atomic signal: Press and hold the [REC] button for at least 3 seconds.
The hands will return to the 12:00 position and begin a new search for the radio signal. Troubleshooting Tips
Signal Blockage: Place the clock near a window, preferably facing towards the signal source (e.g., Colorado for WWVB or Anthorn for MSF).
Interference: Keep the clock at least 6 feet (2 meters) away from electronic devices like TVs, computers, or microwaves.
Low Battery: If the hands spin randomly or the second hand moves in two-second increments, the battery is low and should be replaced. Best location: Hang it on a wall facing
Reset: For a hard reset, some CH-899 models have two pins on the movement that can be short-circuited with a metal object to clear the memory. MSF Radio Controlled Wall Clock - TLC Electrical Supplies
Disclaimer: While these instructions are based on common CH-899 functions, always refer to your specific product manual for model-specific details.
The CH-899 is sensitive to interference. If it hasn't set after 15 minutes, move the clock.
Before diving into the instructions, it helps to understand what you’re working with. The Chouchin CH-899 is a digital or analog-digital hybrid radio controlled clock known for:
The instructions apply to most CH-899 models released after 2020, though minor variations exist.
Last Updated: October 2025
If you’ve recently purchased a Chouchin CH-899 radio controlled clock, you’ve invested in one of the most reliable, self-setting timepieces on the market. The "RC" in its name stands for Radio Controlled, meaning it synchronizes automatically with a government time signal (such as WWVB in the US, MSF in the UK, or DCF77 in Europe). However, setting up your CH-899 for the first time—or troubleshooting when it goes wrong—can sometimes be confusing without the right instructions.
This article provides a complete, step-by-step walkthrough of the CH-899 Chouchin radio controlled clock instructions, covering initial setup, manual override, time zone settings, DST (Daylight Saving Time) handling, and common troubleshooting.
Many CH-899 models include an indoor thermometer (°C or °F). To toggle:
Other buttons may include:
The CH-899 Chouchin radio controlled clock features a user-friendly display that shows: