In recent years, with the rapid development of communication technology, smartphones have become an indispensable part of social life. signal jammer However, in prison environments, mobile phones have become an important tool for prisoners to carry out illegal activities. Traditional 2G jammers can no longer cope with the signal penetration problem of modern smartphones, resulting in frequent illegal communications. cell phone jammer This article takes the Brier Model Prison in India as an example to explore the technical challenges faced by prisons in dealing with prisoners' illegal use of mobile phones and the need to upgrade their jamming equipment.GPS jammer
1. Current Status of Signal Jamming System in Brier Prison
Brier Prison installed 2G mobile phone jammers in 2008 to prevent prisoners from using mobile phones for illegal communications. Wifi jammer However, with the popularity of 3G, 4G and even 5G networks, these jamming devices have become outdated. Prisoners easily bypass 2G jammers by using modern smartphones and continue their criminal activities. The results of the 2022 surprise inspection showed that multiple mobile phones, Bluetooth devices and chargers were seized in the prison, indicating that the existing jamming system has limited effect in preventing prisoners from communicating.
Outdated equipment and out of touch with technological upgrades Although the 2G jammers at Brier Prison achieved certain results in the early stages of installation, the effectiveness of the jammers has gradually weakened with the advancement of communication technology. The rapid development of 3G and 4G networks has almost made these jammers lose their shielding effect, especially when prisoners use 4G smartphones, the existing equipment can hardly play any role.
Security risks in the prison environment Due to the failure of jammers, illegal communications are frequent in Brier Prison. It is reported that prison guards seized mobile phones and chargers from multiple prisoner barracks in 2022. These devices were used to contact the outside world and even plan criminal activities. Prisoners access social media platforms such as WhatsApp and Telegram through their mobile phones to conduct illegal transactions and transmit information, which seriously threatens prison management and public safety.
2. Plan to introduce portable jammers
To meet these challenges, the management of Brier Prison decided to upgrade the existing jammer system and planned to introduce portable jammers to deal with 4G and 5G signals. This new type of equipment can not only more effectively block the signals of modern smartphones, but also flexibly adjust the interference range to ensure that communications in specific areas are fully controlled.
