Blocking Cell Phones In French Theatres

Karrer Peter 2021-11-10

It is learned from China Mobile Guizhou Company that during the college entrance examination, all examination rooms will be equipped with metal detectors, and Blocking Cell Phones In French Theatres will be used. During the college entrance examination, high-power mobile phone signal jammers will be turned on around the test center to shield mobile communication signals, walkie-talkie signals, wireless transmission signals, etc. At that time, the call quality of mobile phone users around the test site may be affected. According to the technical staff of China Mobile Guizhou Company, the high-power mobile phone signal jammer has completed the final installation test to ensure that all communication signals in the examination room are shielded during the college entrance examination. On the same day, the reporter saw outside the examination room that a 50 cm long gray box was installed in each examination room. This is the high-power mobile phone signal jammer installed uniformly throughout Guizhou this year. At present, the shielding device has completed the final installation test to ensure that all communication signals in the examination room are shielded during the college entrance examination. cell phone jammer

The mobile phone jammer will scan from the low end of the channel to the high end at a certain speed during its work. This scanning speed can cause garbled interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station. The mobile phone is manifested as a search network, no signal, no service system and other phenomena. Blocking Cell Phones In French Theatres, Its essence is to implement electromagnetic interference to the wireless network, so that the mobile phone cannot access the network and cannot receive the signal from the mobile network and cannot send out information through the network. During the college entrance examination, the call quality of mobile phone users around the test center will also be affected, or there will be no signal, frequent call failures, failure to connect, intermittent calls, and slow mobile Internet access.