Ch-899 Chouchin Radio Controlled Clock Manual
The Chouchin CH-899 is a self-setting clock. It listens for the WWVB (USA) or DCF-77 (Europe) radio signal from the atomic clock in Fort Collins, Colorado (or Frankfurt, Germany). In theory, you should never have to touch it. In reality, it needs a little human nudge sometimes.
If the clock cannot receive the radio signal immediately, or if you need to set it manually:
The CH-899 Chouchin is a radio-controlled wall/desk clock that automatically synchronizes time via the standard longwave time signal (e.g., WWVB / DCF77 / MSF depending on model/region). It offers automatic time setting, adjustable alarms, backlight, and basic calendar functions.
For warranty information or assistance:
Version 1.0
© 2025 Chouchin. CH-899 is a radio-controlled clock designed for reliable automatic timekeeping.
Chouchin CH-899 is a precision radio-controlled (atomic) clock movement designed to synchronize automatically with time signals (such as MSF in the UK, DCF77 in Europe, or WWVB in the US) to maintain accuracy to within one second in millions of years. TLC Electrical Supplies 1. Initial Setup (Automatic Mode)
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
on the back. Slide it to your local zone (e.g., P-Pacific, M-Mountain, C-Central, E-Eastern). DST Setting : Ensure the Daylight Savings Time (DST)
switch is set to "ON" unless you live in an area that does not observe it. Insert Battery : Place one fresh 1.5V AA Alkaline battery into the compartment, observing the correct polarity (+/-).
Note: Do not use rechargeable batteries as they may lack the necessary voltage for the signal receiver. Synchronization ch-899 chouchin radio controlled clock manual
: Upon battery insertion, the hands will fast-forward and stop at
. The clock will stay at 12:00 for 3–10 minutes while it searches for a signal.
If successful, the hands will automatically advance to the correct time.
If unsuccessful after 10 minutes, the clock will start running from 12:00 as a standard quartz clock and attempt to re-sync later. TLC Electrical Supplies 2. Manual Time Setting
Use this if you are outside a radio signal range or the signal is weak. Press and hold the button for approximately 3 seconds to enter manual mode. Fast Advance : Continue holding the button; the hands will begin to move quickly. Fine Adjustment
: Release the button as you approach the correct time. Each subsequent short press will advance the minute hand by one minute
: Stop pressing the button for 7 seconds to save the time and exit manual mode. TLC Electrical Supplies 3. Manual Signal Reception (Force Sync)
If the clock is showing the wrong time, you can force a new signal search: Press and hold the (or Wave) button for 3 seconds.
The hands will return to 12:00 and begin a new search for the radio signal. TLC Electrical Supplies 4. Maintenance & Troubleshooting Potential Solution Hands spinning randomly The Chouchin CH-899 is a self-setting clock
This typically indicates a low battery; replace with a fresh alkaline AA. No signal received
Move the clock near a window, preferably one facing the signal transmitter (e.g., toward Colorado for US WWVB). Interference
Keep the clock at least 2 meters (6 feet) away from TVs, computers, or air conditioners. Complete Reset
Remove the battery for at least 1 minute. Some models have two pins in the upper-left corner that can be short-circuited with a screwdriver to clear the memory. MSF Radio Controlled Wall Clock - TLC Electrical Supplies
The Chouchin CH-899 is a common radio-controlled clock movement used by various brands like Sharp, Howard Miller, and Acctim. It is designed to automatically synchronize with atomic time signals—such as MSF in the UK or WWVB in the US—to maintain accuracy within one second over millions of years. Initial Setup & Automatic Setting To start the clock, follow these steps:
Set the Time Zone: Adjust the slide switch on the back to your local zone (e.g., P, M, C, or E for Pacific, Mountain, Central, and Eastern).
DST Selection: Ensure the DST (Daylight Savings Time) switch is set to ON unless you are in an area that does not observe it.
Insert Battery: Use one fresh 1.5V AA alkaline battery. Do not use rechargeable batteries.
Wait for Sync: After battery insertion, the hands will fast-forward and stop at 12:00. The clock will then search for a radio signal for up to 10 minutes. If successful, it will automatically advance to the correct time. Manual Controls Version 1
If the clock cannot find a signal, you can use the buttons on the back: Fix Your Radio-Controlled Clock in 2 Easy Steps!
Title: Lost the Paper? Here’s Your Guide to the CH-899 Chouchin Radio Controlled Clock Manual
Tagline: Don’t let the time change stress you out. Let’s decode the atomic precision of the CH-899.
We’ve all been there. You buy a sleek new gadget—in this case, the popular Chouchin CH-899 Radio Controlled Clock—you set it up, it works like magic for six months, and then the batteries die. When you swap them out, the clock starts flashing “12:00” and refuses to sync.
You frantically search the drawer for the manual. It’s gone. No problem. Here is your unofficial, practical guide to operating the CH-899.
Cause: Poor signal location. Solution:
Before diving into the manual settings, it’s important to understand what the CH-899 is. The "CH-899" is a model number typically associated with a modern, wall-hanging or desktop radio-controlled clock sold under the "Chouchin" brand. These clocks are known for:
Because no physical paper manual is always included in the box (to save paper), many users search for a digital version. This guide fills that gap.
| Parameter | Specification | | :--- | :--- | | Model | CH-899 | | Frequency | 60 kHz (WWVB/US) / 77.5 kHz (DCF/EU) / 60 kHz (MSF/UK) | | Operating Temp | -5°C to 50°C (23°F to 122°F) | | Power | 2-3 x AA (1.5V) or USB 5V | | Accuracy (Quartz) | ±0.5 sec/day | | Accuracy (RC) | ±1 sec per million years |
| Icon | Status | Meaning | | :--- | :--- | :--- | | Antenna flashing | Searching | Attempting to receive atomic signal. | | Antenna solid (no slash) | Synchronized | Last reception successful. Time is atomic. | | Antenna with slash (/) | Failed | No signal in last 24h. Quartz mode active. | | DST indicator (summer sun) | Active | Daylight Saving Time is manually or automatically applied. |