The working principle of the mobile phone signal jammer is that within a certain frequency range, the mobile phone and the signal tower are connected by radio waves to complete the transmission of data and sound with a certain baud rate and modulation method. So what are the characteristics of Blocker Out Of An Old Cell Phone ? The mobile phone signal blocker only blocks the mobile phone signal in the test room, and has no effect on the mobile phone outside the test room, and will not affect the signal tower. It only blocks cell phone signals and does not affect the normal work of other electronic devices. It only shields the downlink frequency of the transmitting tower and does not affect the uplink frequency. cell phone jammer The operation is simple, the antenna is installed correctly, and it can run automatically when it is turned on. It is green and environmentally friendly. The intensity of the electromagnetic field is far lower than the national standard and has no effect on the human body.
Students at Dongguan No. 5 Senior High School in Guangdong have recently been worried about revisiting the history of "Notes" and "Flying Pigeon" because "Wind Sound" has been released on campus and the installation of rumors Blocker Out Of An Old Cell Phone has been completed. will be activated this week. By then, whether students are holding an Apple, Blackberry or other "smartphone", they will "fire" within the five-point range, and can only be used as calculators and alarm clocks at most. The earliest news came from the Weibo community. As early as the 2nd of this month, Weibo netizens were competing for the championship and asked everyone: "No. 5 Middle School, I heard that mobile phone signal blocking will be implemented next week?!
