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In today's society, with the development of information technology, mobile phones and wireless networks that are inseparable from our lives are becoming more and more important. However, with this comes the increasing prominence of information security issues. In many occasions, in order to avoid the leakage of confidential information, people have begun to use devices such as mobile phone signal jammers, wifi jammers and drone jammers. First of all, a mobile phone scrambler ( https://www.jammermfg.com/cell-phone-jammers.html ) is a device that can shield signals in a specific frequency band. When we are in important meetings, business negotiations or confidential calls, we are easily interfered by mobile phone eavesdroppers. Mobile phone signal jammers can effectively shield surrounding signals by emitting electromagnetic signals in a specific frequency band, making the eavesdropper unable to work properly and ensuring the security of communications. This type of

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