In recent years, with the popularity of smartphones, the problem of illegal use of mobile phones in prisons has become increasingly serious. signal jammer In order to prevent prisoners from engaging in illegal activities through mobile phones, such as contacting accomplices, directing crimes or escape plans, prisons in many countries have installed mobile phone jammers. cell phone jammer However, while this technical means brings security, it also has many negative effects on surrounding residents and social life. This article will explore in depth the necessity of using mobile phone jammers in prisons and the chain reactions they bring.GPS jammer

1. Background of the application of mobile phone jammers in prisons

　　In prisons, the illegal use of mobile phones has always been a headache for law enforcement agencies. Wifi jammer Many prisoners use mobile phones to keep in touch with the outside world, participate in illegal transactions or plan jailbreaks. For example, in the Mangalore District Prison, since the appointment of the prison director V. Krishnamurthy, prison staff have seized more than 50 illegal mobile phones, and even seized dozens of mobile phones in one day during police raids. Major prisons in India, including the Parappana Agrahara Central Prison in Bangalore, have successively installed mobile phone signal jammers. Home Minister Araga Jnanendra has said that these jammers can even block 5G network calls to ensure that prisoners cannot use their phones for illegal activities.

2.And its application results

　　Mobile phone jammers interfere with the normal communication of mobile phones by emitting electromagnetic signals, making it impossible for mobile phones to connect to the surrounding cellular networks. The jammers used in prisons usually cover an area with a radius of about 100 meters and can effectively block mobile phone signals in all frequency bands. This means that whether it is 2G, 3G, or the latest 5G network, it will not be able to work properly.