Ch-899 Chouchin Radio Controlled Clock Manual Upd May 2026

User Manual: CH-899 Chouchin Radio-Controlled Clock

Thank you for purchasing the CH-899 Chouchin Radio-Controlled Clock.
This clock automatically sets itself to the correct time using radio signals. Please read this manual carefully before use.

Initial setup & automatic time sync

Place the clock near a window or away from electronic interference for best radio reception.
On power-up the clock will attempt to receive the radio time signal automatically (this can take several minutes, up to an hour in weak-signal areas).
Successful reception is usually indicated by a signal icon or an “RC” / antenna indicator on the display.

Section 4: Forcing a Signal Reception (Manual Sync)

If the clock displays the wrong time or the antenna icon is flashing continuously, force a manual sync. ch-899 chouchin radio controlled clock manual

To force the CH-899 to search for the signal: Initial setup & automatic time sync

Locate the "WAVE" or "RCC" button on the back. Some models use a pinhole labeled "REC" (reception).
Press and hold this button for 3–5 seconds.
The second hand will move to a specific position (e.g., 12:00 or a "RX" zone) to indicate it is searching.
Leave the clock for up to 15 minutes. Do not press any buttons.

If after 15 minutes the time has not corrected: Place the clock near a window or away

Move the clock to a different location (preferably near a window on an upper floor).
Remove and reinsert the batteries, then try the manual sync again.

6. Radio Control (RC) Synchronization

The clock is programmed to search for the signal automatically at night (typically between 1:00 AM and 4:00 AM) when interference is lowest.

Signal Strength Icon: Look for a tower or antenna icon on the display.
- If the icon is flashing, the clock is searching for a signal.
- If the icon is solid, the signal is strong and time is synced.
- If the icon is absent, the signal is too weak.
Manual Search: Press and hold the RCC/RC button for 3 seconds to force a search.
Disabling RC: If you are in a region with no signal coverage, you can hold the RCC button until the antenna icon disappears, or set the time manually.

Problem 3: The clock never sets itself after 24 hours.

Cause: Poor signal location. Solution:

Move the clock at least 6 feet away from any wireless router, smart TV, or LED light bulb dimmer (these emit interference).
Overnight, place the clock in a west-facing window (for US) or south-facing (for Europe).
If all else fails, use the manual setting method (Section 3). The clock will still run accurately as a quartz clock.

Why isn't it syncing? (Troubleshooting)

If you see the antenna icon flashing for a long time with no result:

Interference: Place the clock near a window, away from computers, TVs, or microwaves which can interfere with the radio signal.
Nighttime: The signal is strongest at night. If it fails during the day, leave it alone; it will likely correct itself by morning.
Battery Low: A weak battery may run the display but lack the power to catch the radio signal.

Signal reception tips

Best reception at night and near windows facing the transmission tower direction.
Avoid placing the clock near large metal objects, electronic devices, or inside thick concrete structures.
If reception fails, perform a manual sync attempt by pressing the "Receive" or "Sync" button; restart the clock if needed.

To Set the Time Manually:

Locate the small button on the back of the movement. It is usually labeled "M.SET" (Manual Set) or "SET".
Press and hold this button for 5 seconds until the second hand stops or jumps to a starting position.
To advance the time: Press the "M.SET" button repeatedly (each press moves the minute hand forward by 1 minute).
To fast advance: Press and hold the "M.SET" button. The hands will spin continuously. Release when close to the correct time.
To stop the manual mode: Press the "RESET" button (if available) or simply do nothing for 10 seconds. The clock will resume normal operation in manual mode.