: Use one fresh 1.5V AA alkaline battery . Do not use rechargeable batteries.
Place the clock near a window, preferably facing toward the signal source (e.g., Fort Collins, Colorado for US users).
Note: While specific user manuals for the "CH-899 Chouchin" can be difficult to locate online due to it often being a generic or rebranded model sold in various markets, the operational procedures are standard for most Radio Controlled clocks. The following write-up serves as a comprehensive manual based on the standard functionality of this device. ch-899 chouchin radio controlled clock manual
Look at the back of the clock. You will see three or four buttons typically labeled:
Move the clock to a window facing toward the nearest atomic signal transmitter. Avoid placing it near routers, computers, televisions, or microwaves, as these devices create severe signal interference. : Use one fresh 1
Ensure the clock is not placed behind a metal wall, steel frame, or inside a basement. What if I Can't Get a Signal?
If a signal cannot be reached, you can set the time manually: Enter Manual Mode : Press and hold the button for approximately Adjust Time Rapid Advance : Keep holding the button to move the hands quickly. Incremental Advance : Press and release the button quickly to move the hands by one minute at a time. Note: While specific user manuals for the "CH-899
Press and hold the or SET button for 3 seconds to force a manual signal search.
Here are some tips and tricks for getting the most out of the CH-899 Chouchin radio-controlled clock:
For the best results, perform the setup in the late evening or night when radio signal interference is lowest. Coopers of Stortford Select Time Zone : Locate the Time Zone switch