Jammer Detector

Sergio Gudkov

About this app

Introduction.

Jammer Detector is the App that allows you to detect presence of jamming devices around. In that situation your mobile phone loses the ability to make a phone call. If it happened, the App gives you a visual or sound message. The time for reaction on a working jammer depends on hardware communication part of your device and typically can be in 30-60 sec range.

Features

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  Completely NO ads.
  
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  The app records an event log and writes the location where a jamming device or 'out-of-service' state was detected.
  
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  The signal strength indication.
  
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  Vibration indication of the alarm event.
  
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  Background mode with notifications. Once this option starts, the App runs quietly in the background and requires no human interaction until the alarm event happens. It continues to run even after the device reboots.
  
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  Adjustable battery consumption in the background mode. The App is designed to conserve your device battery and allows to select the data update rate. The more update rate time, the less battery it takes.
  

Frequently asked questions:

Q: Does the jammer app detect if someone or another device is intentionally trying to jam my signal so that I'm not able to use my phone?
A: Yes, That's exactly the app does.


Q: How do I stop my signal from being jammed?
A: If your phone has been jammed and you want to get your cellular service back, you have three options to do it:

1. Change your current location. Just make few steps aside. Depending on the power of a jamming device, the affected area can be between a meter and a hundred meters.

2. Change 'Network mode' in the 'Settings' of your phone (for example, Settings -> Connections -> Mobile networks ->Network mode). The 'Network mode' could be: LTE (4G), UMTS (3G), GSM (2G). In some cases jammer devices are not able to work in all type of frequency ranges (network modes). So, it's possible that one of the network mode will be working despite the jammer.

3. Find the jamming device and turn it off. In some cases it's possible to localize the spot where the jammer has been installed. You can use an additional device called the RF Detector for it OR just use your phone, but in the last case you need some skills to search the jammer.

PS: Pay attention, if your cellular signal is very weak and the phone lose it, the app also will do alarm.


Q: I live out in the woods with no cell service and the alarm goes off like crazy.
A: That is exactly the purpose of this app: to inform when your phone out of service, no matter the reason of that. It could be the wood area, or a jammer device, or a deep underground. But if you launch the app with no cell service, the alarm will not go off until the switching between ‘in service’ and ‘out of service’.



If you have any problems or any suggestions to improve this application, please feel free to contact


by e-mail: [e-mail]


Thanks!

Ratings and reviews

This app worked fine for a few days, then I woke up this morning with no phone service or mobile data. Called my carrier and they said, after he checked my line that there was a problem with applications. So I cleared data from off of this app and cleaned junk files then Uninstalled this app. After restarting my phone my carrier checked the line and it was clean and I did see that instantly I had mobile data an could make calls again. Samsung Galaxy S21 Ultra Software updated 9/14/21

The app just show the signal strength and just probably take the decision based on presence and strength of the cell tower signal while the jammer does not effect the strength of the signal but it just radiates a strong signal with respect to cell signal on the same spectrum to mask the original cell signal,.. I believe it requires a bit more intelligence to detect the presence of jammer signal.

I don't think this app really works. having all kinds of signal problems today which is why I downloaded it. although I don't have a signal that works this app says "normal signal" not! even 2.4g security cameras are affected.