Portable jammer is used to shield mobile phone signals

François Bayrou, the new guardian of the seals, said he was in favor of placing jammers to prevent the use of mobile phones in prisons. This technology has been established in some facilities and has been tested many times. It has many advantages and many disadvantages. “I’m in favor of bringing disruptors to justice.” Like other justice ministers such as Christiane Taubira in 2015, the new seal guardian François Bayrou told BFMTV and RMC responded to the phenomenon of mobile phones in prisons. Photos of superiors posted on social networks, prisoners taking photos of themselves in a pool unit, photos of smoking marijuana…Although the authorities have tried to curb this practice, this problem has been going on for several years.

Since 2002, this law allows the installation of wave filters in prisons. According to our information, French prisons currently have 804 devices. Problem: Compared with the development of mobile phones, this technology is usually outdated. The Ministry of Justice has provided 3 million euros to upgrade and purchase a new generation of cell phone jammer. But there is one condition. According to a study in January, NTIA researchers installed a portable jammer for mobile phones in the storage room next to the 13-by-8-foot storage room on the first floor of the storage room. This study claims that it has successfully blocked mobile phone transmissions in the commercial frequency band between 700 and 2170 MHz, but if it is monitored at a distance of 20 feet and 100 feet from the phone, it will not interfere with commercial transmissions. However, according to NTIA, further research is needed to determine whether the technology poses a potential threat to commercially licensed wireless services outside the prison walls. There are still some obstacles. The agency pointed out that the test results are only for their respective locations, and the results vary greatly in other prison facilities.

The model price of Global Protection & Intelligence Inc., a Los Angeles-based mobile phone interference seller, is between $1,600 and $2,600. They prevent cell phone frequencies from entering certain areas, while more expensive models interfere with larger areas. The briefcase-sized equipment sold by the company can cover a radius of about 150 meters, while the cigar box-sized model can keep the conference room without signal. But not everyone thinks it’s a good idea to have some people prevent others from communicating. Jeremy Depow, an analyst at the Yankee Group in Brockville, Ontario, Canada, said he is concerned that cell phone jammers (which may also disable pagers) may make it difficult to contact healthcare Professionals and others who use mobile devices use them when they are on standby. He also said that suffocating such growth industries is a bad idea.

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