Some netizens broke the news in Xin'anjiang Middle School Post Bar, saying "I heard that Portable Gps And Cell Phone Jammer is harmful to the body". In the following days, there were a few more posts about the school's mobile phone signal jammer, which triggered discussions among many netizens. Another netizen made up a poem: "I saw high-voltage lines during the day, high-tension lines at night, and high-tension lines every day...", and nearly 30 comments were posted. cell phone jammer
Mobile phone signal jammers are also known as mobile communication jammers, mobile phone signal isolators, conference security devices, etc. The signal jammer transmits a strong signal that is consistent with the frequency of the mobile phone's downlink frequency band, and is tuned with the signal sent by the base station to the mobile phone, so that the base station can send it to the mobile phone. The downlink signal is deformed and cannot be recognized by the mobile phone, which interrupts the connection between the mobile phone and the base station. Simply put, its main function is to make the phone unable to use normally. Its essence is to implement electromagnetic interference to the wireless network on which mobile phone communication depends, making the mobile phone unable to access the network, and thus unable to receive information from the mobile network, and unable to send out information through the network. With the promotion of Portable Gps And Cell Phone Jammer , it also brought some adverse effects,
