Recently, a very strange thing happened to me when I went to the school library, my mobile phone had almost no signal in the library, and I missed several calls from my friends. What's the rea...
2 commentsMost recent by PerfectjammerSeptember 2Cell Phone
Recently, there is examination week in our school, it is very common thing, but one thing is different from previous years, during the examination period, if you are too close to the classroom...
2 commentsMost recent by PerfectjammerSeptember 2Cell Phone
Recently, I noticed a very bad phenomenon in my company, that is, employees spend a lot of time in the bathroom. As far as I know, most people watch video in the bathroom or log on to facebook...
2 commentsMost recent by PerfectjammerSeptember 2Cell Phone
My child likes using mobile phone very much. He will chat with his mobile phone and watch video all day long. He hardly ever sees him put down his mobile phone. So I wonder if this will make h...
2 commentsMost recent by PerfectjammerSeptember 2Cell Phone
The whole area of our school is covered with WiFi signal, I have to say it is really convenient, but recently I read reports that WiFi is harmful to people, especially minors. I think this may...
2 commentsMost recent by PerfectjammerSeptember 2WIFI/Bluetooth
I am a new teacher, because I have little experience, so the students do not fear me at all. There are always a lot of students in my class who use their phones, oh yeah, maybe they are using ...
2 commentsMost recent by PerfectjammerSeptember 2Cell Phone
During a recent prayer service in church, I found that my cell phone reception was so weak that I could barely receive calls or messages.Nothing like this had happened before, but since the ph...
2 commentsMost recent by PerfectjammerSeptember 2Cell Phone
I have to say this is a very strange thing. Several times recently I've been on a train to Devon and lost my mobile phone signal for no apparent reason.What is the cause of my complete inability to answer phone calls and receive any messages on the train? ...
2 commentsMost recent by PerfectjammerSeptember 2Cell Phone
Recently, I bought a phone jammer online and put it in our office area.The results were good. There were significantly fewer slacking behaviors at work. But recently I heard that this kind of ...
2 commentsMost recent by PerfectjammerSeptember 2Cell Phone
This happens all the time, every time when I go to a restaurant for dinner, I will find my cell phone signal is lost.But as soon as I get out of the hotel, the signal comes back on.What exactl...
2 commentsMost recent by PerfectjammerSeptember 2Cell Phone
The U.S. navy recently faced a major problem, blocking Iranian sea traffic with GPS signals that caused the entire fleet to lose direction. Due to the over-reliance on GPS, once the GPS l...
2 commentsMost recent by PerfectjammerAugust 29GPS
Nowadays, cell phones are very popular all over the world, so more and more students start to use cell phones. Although mobile phone can let students get more knowledge, children are easy to g...
2 commentsMost recent by PerfectjammerAugust 29Cell Phone
According to incomplete statistics, most American citizens are understandable about the phenomenon of signal interference. Because they think somewhere needs to be quiet. Not eve...
2 commentsMost recent by PerfectjammerAugust 29Cell Phone
It is reported that the latest generation of us warplanes will be equipped with the latest jamming weapons to counter Russian jamming weapons.Now, the air force's top brass say they have great...
2 commentsMost recent by PerfectjammerAugust 29GPS
Russia, which inherited the research achievements of the Soviet era, has unique advantages in electronic signals. For example, Russia ranks first in the world in terms of electromagnetic signa...
2 commentsMost recent by PerfectjammerAugust 29GPS
GPS jamming weapons have become America's biggest obstacle on the battlefield in Syria.Many of America's advanced drones have been affected by GPS jamming, and some of its most advanced stealt...
2 commentsMost recent by PerfectjammerAugust 29GPS
The United States, though, has developed the global positioning system, or GPS, as the most powerful aid to military precision strikes. But with the development of technology, more and more co...
2 commentsMost recent by PerfectjammerAugust 29GPS
More and more qualification tests are now starting to block cell phone signals. Even high school exams now use them. So is this device really effective in preventing cheating?
2 commentsMost recent by PerfectjammerAugust 29Cell Phone
Both the United States and Russia are reportedly working hard to develop signal-jamming weapons in an effort to gain an edge in electronic warfare. So what's the use of these jamming devices?<...
2 commentsMost recent by PerfectjammerAugust 29Drone
Hello, everyone. I have a 4G signal jammer, and it works very well all the time.But recently I heard that 5G mobile phones are going to be available in China. I'm worried that my jamming devic...
2 commentsMost recent by PerfectjammerAugust 29Cell Phone
Can block only the network functions in the room and not the calls? I mean I want to block the use of skype, facebook and other social software on smartphones and tablets. But we...
I need to block a GPS tracker installed in my car, but the problem is that I need my mobile phone working. Can just block the GPS signal without interfering with the normal use of the phone
2 commentsMost recent by PerfectjammerJuly 12Cell Phone
Hi, I'm very concerned about drone spying.Could this device be used to spy on the general population? Could I also be monitored? I heard that there are already self-driving drone...
2 commentsMost recent by PerfectjammerJuly 11Drone
I read about us drones spying on civilians.I wonder if there's a way to avoid tracking or ban it? I don't do anything illegal, I just want to be safe and not under the constant surveillan...
2 commentsMost recent by PerfectjammerJuly 10Drone