WWVB Emulator

A radio wave for electric wave clocks (WWVB) is offered.

App info

Version :

1.3.3

Category :

Productivity

Update :

July 04, 2025

Installs :

22,713

Developer :

mokyuu

Requires Android :

Android 2.3+

Content Rating :

Everyone

Get it on :

Download APK

App description

Android App Analysis and Review: WWVB Emulator, Developed by mokyuu. Listed in Productivity Category. Current Version Is 1.3.3, Updated On 04/07/2025 . According to users reviews on Google Play: WWVB Emulator. Achieved Over 23 thousand Installs. WWVB Emulator Currently Has 311 Reviews, Average Rating 4.7 Stars

Attention: There are a lot of people this application requests, so it's made. But there is no environment that a maker tests. Operation guaranteed won't be done.

Note
It can not correspond to the atomic clock. Please adjust the NPC time with other apps.
Correspondence in this application is not planned.
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.

How to use
Place headphone speakers by the atomic radio clock's internal antenna, with the volume as high as possible before it starts to distort. Or, place the clock’s internal radio antenna as close as possible to the smartphone speaker. Again, with the volume as high as possible before it starts to distort. When time sync receive mode is active, the clock will sync within 2 to 3 minutes.

We are currently offering version 1.3.3. This is our latest, most optimized version. It is suitable for many different devices. Free download directly apk from the Google Play Store or other versions we're hosting. Moreover, you can download without registration and no login required.

We have more than 2000+ available devices for Samsung, Xiaomi, Huawei, Oppo, Vivo, Motorola, LG, Google, OnePlus, Sony, Tablet ... with so many options, it’s easy for you to choose games or software that fit your device.

It can come in handy if there are any country restrictions or any restrictions from the side of your device on the Google App Store.

What's New

Changed target SDK version

Rate and review on Google Play store

4.7

311 total

5 86.5

4 5.6

3 2.6

2 2.6

1 2.6

Total number of installs (*estimated)

Estimation of total number of installs on Google Play, Approximated from number of ratings and install bounds achieved on Google Play.

Recent Comments

DerekS8625

Excellent app! Does exactly what it's intended to do, and makes an excellent backup when the WWVB signal is too weak or compromised. While it may not be 100% to the precise second (it uses your phone clock which may be off by a few milliseconds) according to NIST or USNO atomic time systems, it still does the job VERY well. The key is to have the phone volume all the way up and hold the phone's speaker as close as possible to the antenna system of the time piece you wish to sync. Works well!!!

Mark Bell

Works great on a Galaxy S24+ with Casio GW-9400. I lay the phone flat and place the watch face-down with half of it resting on the bottom of the phone next to the speaker and the other half on the table. Seems to be about 1/2 a second slow compared to my GPS time server but that's close enough!

A Google user

This app actually synced my radio controlled clock, that's amazing! Now i can keep my clock synced when WWVB is too weak or off the air or if I'm at the other side of the world. But i do have one request, however... can you please make the DST (Daylight Savings Time) automatic? The actual WWVB signal does the DST automatically. It's inconvenient when this setting needs to be manually set.

John Driscoll

It's great when an application works! In NJ the signal is poor. I thought I would try this before manually setting DST. It went for about 8-9 minutes and I was starting to lose hope when GET appeared on my Casio, the hands spun and it was all good. I just used the time already in the phone which matches Alexa and she's "always" right. Thanks

Richard Bradley Gong

Really works! I didn't know something like this exited but stumbled on it. Very happy that it does. Sync'ed time from Pixel 3 XL to Casio PAW-1200 v1. Placed watch next to top front speaker with sound at max, sucessful after about 3 minutes. Also verified the radio time sync still works on my watch since it hasn't synced for a few years. Was never consistant even when watch was new. Had to strap my watch to a lawn chair in the back yard for it to sync.

A Google user

Finally got one that works. I have a One Plus 7 Pro and a Casio Oceanus s100. After starting this app up, I lay the watch at a 45 deg facing the bottom speaker, with volume Max. That way I can still see if it's syncing manually. Laying it so the back of the watch faces the speaker seems to work at first, but never makes a successful sync. Takes a minute or two this way and has worked every time since I started facing the front of the watch towards the speaker. Perfect alternative to over air sig

Richard Carpenter

My citizen watch hardly ever gets a signal any more. Found this app and I'm amazed it's generating a 60kHz signal from an audio circuit. I'm guessing it's a harmonic. It works fine using my Pixel phone but it does use system time rather than GPS or nntp so it's off a couple of seconds. I don't really fault the developers for that as it would complicate the free app.

Don P

This app does indeed update and synchronize an atomic enabled timepiece. However, with access to a computer, I find it faster to do a manual time set to time.is or the NIST website. The app is about 1/2 second ahead of these net based sources. For someone in a poor reception location and no computer access, this app fill a void nicely.