Remember when Venezuelan President Nicolas Maduro was hit by a drone bomb while attending a military memorial in Caracas on August 4th? In fact, it has not been uncommon to use civilian drones in recent years, especially in Syria. Compared with the traditional "low, slow, small" target, this drone has the characteristics of "low, slow, small". If conventional anti-aircraft missiles and artillery are found flying over cities, they cannot prevent collateral damage. However, an drone jammer exhibited by Huanghu Technology Co., Ltd. At the 12th Zhuhai Air Show, time was tight.
Why are more and more devices using wifi blocker? This article will illustrate this problem through various data analysis and an example. The proliferation of consumer drones and their abuse have spawned many novel anti-drones systems. There is a dynamic system that can shoot down the drone. You can also use interceptor drones that can deploy networks to intercept other drones. Even predatory birds are trained to catch drones in the air. To date, the effective distance of portable UAV jammers is up to two kilometers, which has become one of the most effective anti-drone systems.
Some countries / regions allow businesses and government organizations to install 4G jammer in areas where mobile phone use is considered a hazard. In December 2004, France approved the legalization of cell phone jammers for performing in movie theaters, concert halls and other places. France is finalizing the technology so that calls to emergency services can continue. India installed jammers in Parliament and some prisons. According to reports, Italian universities have adopted this technology to prevent cheating. Students are taking pictures of the test with a camera phone and then sending it to their classmates.
"All mobile phones are used 99% of the time in school just to text your friends in another class, take pictures, surf the Internet and 'pass the time through social networks'. I'm not saying that cell phone jammers should be in any Places are legal, but within the school area, students are encouraged to concentrate on education during school. Once the school ends and leaves the affected area, they can turn on the phone again and get service. These jammers have on and off Switch, which is a more convenient way. These gps jammer have on and off switches, and the principal can activate and shut down the device during the appropriate class time.
Josephus Jelianggao, chief inspector of the prison director of the Talisay City Prison, said he hoped that the prison should also be equipped with signal portable jammer to prevent illegal use of mobile phones in the facility. This means that all smuggling calls in the facility will be quickly identified. In addition, it will be relatively easy to create allowed phone lists (owned by guards, office workers, etc.) and pass calls from those devices to the communication network. Or, we must ask exactly why the guard on duty needs a phone.
But is this mask really effective? The entire frequency range of electromagnetic waves ranges from the smallest Hz to the largest hundreds of GHz. The range is very large, and each segment can be used as a communication signal, but in addition to some very professional equipment, the common protection equipment is "skills are not big enough" and "Five voices are incomplete." The shielding layer can only block a small part of frequency bands. Communication tools can use unshielded frequency bands for communication.
