If you are in an area with poor reception (like a basement or metal building), you can set the time yourself:

✅ Insert fresh batteries. ✅ Place near a window overnight. ✅ Do not press any buttons for the first 12 minutes. ✅ If time is wrong after 24 hours, press RESET and try a different room. ✅ Use the WAVE button only when troubleshooting.

Looking for the CH899 Chouchin radio controlled clock manual? We provide free setup instructions, button functions, and troubleshooting tips for this popular atomic clock.

Keep the clock at least 2 meters away from TVs, computers, or air conditioners to avoid signal disruption.

The CH899 Chouchin radio controlled clock is a popular and affordable atomic clock that automatically synchronizes with the atomic clock in Boulder, Colorado, ensuring accurate timekeeping. This clock is designed to provide a precise and reliable time source, making it an excellent choice for those who value accuracy and convenience.

If you’ve just purchased a , you might have noticed that the physical manual is either printed in very small type, written in basic English (or another language), or simply missing from the box.

: The clock will remain at 12:00 while it searches for the radio signal (MSF or WWVB depending on your region). Automatic Sync

Radio signals are stronger at night. Try setting it up in the evening. 4. Resetting the CH899