With the rapid development of science and technology, mobile phones play an increasingly important role in daily life. However, in some cases, the use of mobile phones may bring serious social problems, especially in prisons, where it is not uncommon for prisoners to continue criminal activities through mobile phones. signal jammerTherefore, shielding mobile phone signals in prisons has become an important measure to combat crime.
Brazil, as a country with the third largest prison population in the world, has successfully implemented prison signal shielding technology. cell phone jammerCosta Rica, as another country in Latin America, is also facing similar problems. Whether it can follow Brazil’s practice and shield mobile phone signals in prisons has become an important topic of domestic discussion.GPS jammer
1. Mobile phone use problems and signal shielding measures in Brazilian prisons
Brazil is the most populous country in South America and has a large prison system. Wifi jammerAs of 2023, Brazil has more than 726,000 people incarcerated, making the country the third largest prison population in the world. Similar to other countries, the illegal use of mobile phones in Brazilian prisons is becoming increasingly serious. Through mobile phones, prisoners are able to continue to contact the outside world and even organize criminal activities. Especially in drug trafficking and other organized crimes, mobile phones have become an important tool for prisoners to communicate with their accomplices.
To address this problem, the Brazilian government, in partnership with Neger Telecom, took a targeted approach, using small antennas and jammers to successfully block 23 of Sao Paulo’s 200 prisons. This initiative significantly reduced criminal activity via mobile phones in prisons and became an important tool in combating prison crime.
2. Technical Challenges and Innovative Solutions
Brazil faces a unique challenge in blocking prison signals: most of the country’s prisons are close to urban centers, and if left unchecked, signal blocking could spread to residential areas outside the prisons, cutting off cell phone signals for innocent citizens.
To address this problem, Neger Telecom introduced a new technical solution that uses small antennas and smart jammers to achieve precise blocking. The role of the small antenna is to precisely control the jamming signal within the prison to avoid affecting the normal communications of surrounding residents. Unlike the desolate area blocking solutions used in Europe, America and Asia, this Brazilian technology solves the special problems of prisons in urban centers.
According to Eduardo Neger, director of engineering at Neger Telecom, the key to the technology is that it can be fine-tuned based on terrain, building structure and signal coverage. Each prison is equipped with multiple small antennas to form a wireless shielding network covering the entire prison area, ensuring that prisoners cannot communicate through mobile phones inside the prison without causing interference to the outside world.
3. Current situation and challenges in Costa Rica
Costa Rica faces similar problems to Brazil. The country’s prisons are also located in areas close to cities, and the use of illegal mobile phones has become a chronic disease. Prisoners continue to engage in criminal activities through mobile phones, which not only affects the order inside the prison, but also poses a threat to social security.
In recent years, the Costa Rican government has begun to explore measures to block cell phone signals in prisons and has drafted relevant bills. However, unlike Brazil, Costa Rican bills stipulate that operators are responsible for blocking signals. Operators such as Claro and Telefónica are willing to support technically, but are not active in paying for shielding equipment.
