Let’s get to know what How To Build A Homemade Cell Phone Jammer is. Jammers are also known as cell phone signal blockers, cell phone signal blockers, confidential devices, etc. Their working principle is to implement the same frequency electromagnetic interference to the wireless network on which mobile phone communication depends, so that the mobile network cannot communicate normally, so as to achieve the purpose of interference. The mobile phone signal jammer only shields the mobile phone signal and will not affect other electronic devices. It should be noted that in order to realize the interference of the jammer to the mobile network, it is necessary to ensure that the signal field strength of the jammer is much greater than the field strength of the mobile signal BCH in the interference area. cell phone jammer The closer the interference location is to the base station, the stronger the BCH field strength and the smaller the effective interference area.
According to the website of the Ministry of Education, the 2021 national college entrance examination will be held on June 7. If the name of the test subject in each province (region, city) is the same as the subject name of the national test, the time arrangement of the national test must be the same. To ensure the fairness of the results, relevant departments can use How To Build A Homemade Cell Phone Jammer . The examination room needs to strengthen discipline and restraint, and has special supervisors, invigilators, etc. to supervise the examination process, and any cheating is prohibited. In addition, mobile phone signal jammers are also suitable for military, government agencies, prisons, gas stations and other places where mobile communications are prohibited.
