JJYEmulator is a tools app developed
by mokyuu.
The APK has been available since December 2014.
In the last 30 days, the app was downloaded
about 2 thousand times.
It's currently not in the top ranks.
It's rated 4.73 out of 5 stars, based on 1 thousand ratings.
The last update of the app was on July 3, 2025.
JJYEmulator has a content rating
"Everyone".
JJYEmulator has an APK download size of 7.49 MB and the latest version
available
is 1.6.3.
Designed for Android version 2.3+.
JJYEmulator is FREE to download.
Description
Note
We will receive more emails requesting radio clocks from other countries, but since you can not create it without materials, please attach the clear material you need.
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★★★★★
This Application works Perfect :) Please do the followings in your smartphone: 1) Select "Airplane Mode" - neither Wi-Fi nor 3G/4G/5G available 2) go to "settings" ->Date time 2a) disable "Use network provided time" 2b) disable "network-provided time zone 2c) select timezone as Japan 2d) enter your local country current date 2e) enter your local country time all above settings - will cause this app to fill in Japan however with your local Date & Time settings 3) activate this amazing Emulator mobile app 4) set full volume and put your Radio-Controlled watch as near as possible to your smartphone 5) long press (2 Sec) on button an on your watch - verify the Sec hand move towards the "RX" sign 6) Wait for about 3–4 Minutes (This app. Will communicate with the watch and transfer the Date/Time 12/24 Year... data) once the watch complete to receive all the Atomic Date&Time data, the hands will move to correct Time and the Date will be automatically fixed 7) once the Sec hand start moving in normal mode, your radio-controlled watch was already set 8) Enjoy Your Time
★★★★★
Works well on my Casio Range man GW-9400 in my place... for those with the
same model, this is my advice, so you don't mess up your world time
settings: 1. Set up your calibrating phone's time zone to TOKYO (GMT+8) 2.
On the Casio Range man - use the 'Test Mode - Signal Receiving Function'.
Hold ADJUST button in the Time Keeping mode, and as the HOLD message
appears simultaneously press the LIGHT and FORWARD buttons. 3. Select J 40
Station by cycling through options using FORWARD button. 4. Start JJY
Emulator. Get it ready to sync your watch... 5. Start calibration on the
Casio Range man by pressing the REVERSE button. 6. With patience, the watch
will sync flawlessly just by pumping up the speakers of your phone and
making sure the watch is close to the phone. Approximately 7 minutes (it
takes longer than usual as the watch will make diagnosis of receiving
hardware first before attempting to receive radio signals). JOK message
will appear if the calibration goes well, JNG if not. 7. Exit Test Mode by
hitting either the SENSOR, LIGHT, or MODE buttons. Or leave the watch for
one or two hours, and it will go back to Timekeeping mode on its own. Hope
the developers include other atomic clock signals like BPC etc. to avoid
such workarounds. Kudos to the developer!
★★☆☆☆
Doesn't work on my Casio watch inside Japan.
★★☆☆☆
, radio waves and sound waves are fundamentally different. Radio waves are electromagnetic waves, which can travel through a vacuum, while sound waves are mechanical waves that require a medium like air to travel. Radio waves are too quiet for humans to hear, requiring special devices like radios to convert them into audible sound, whereas we can directly hear sound waves
★★☆☆☆
Keeps getting Japan time not local, signal is great and watch gets it really clear but not local time
Google Play Rankings
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Technologies
JJYEmulator is requesting 9 permissions and is using 5 libraries.
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