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How to overcome police jammer?

When I arrived at the exam school recently, the signal seemed to be turned off all of a sudden. I wonder if there is a cell phone detector. How can I prevent him from blocking the cell phone signal?

2021-01-27 at 09:30


"The principle of a mobile phone: within a certain frequency range, the mobile phone and the base station are connected by radio waves, and the data and sound transmission is completed with a certain baud rate and modulation method. According to the above communication principle, the mobile cell phone jammer uses A certain speed scans from the low end of the forward channel to the high end. 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. Mobile phone performance In order to search for the network, no signal, no service system and other phenomena.” In summary, no matter what mentality you think about this problem, you can find that it is temporarily impossible to overcome mobile police jammer. Keep your feet on the ground.