For the uplink and downlink security channels of the mobile phone system, it selects technologies such as memory overclocking, crossover, frequency hopping filtering, and analyzes the necessary shielding Power ; according to Cell Phone Jammer Aliexpress output Power size, a spherical shielding indoor space is customized. The electromagnetic field is automatically generated and shielded within the scope of, so that mobile phones (including PHS-PHS-GSM-Unicom, China Mobile Communications, CDMA-China Telecom) will be invalid on mobile phones in an indoor space here. cell phone jammer When it is in the running state, it can invalidate the function of receiving and sending data signals by mobile phones in a specific category, and cannot dial out and dial in, thereby achieving the purpose of compulsory prohibition of use. There is "select" in the network connection settings on the mobile phone, select manual search, and then search the network, there are 2 options of [Mobile] [China Unicom] (unsuccessful or no recurrence), no need to select, withdraw immediately , The data signal is available... Note: Some mobile phone settings are successful, and only a few seconds or so, there is a data signal, but it is enough to receive and send short messages (can be retrieved repeatedly)
Operation method of mobile phone signal jammer 1. Select the area where the data signal must be disconnected, and place the disconnector on the desktop or wall in this area. 2. After installation, connect the disconnect switch to the Power supply and turn on the main Power switch. 3. After the device is connected, press and hold the main Power switch disconnector to work. At this time, all the mobile phones that were turned on on the spot were searching for the network, and the communication base station data signal was lost. None of the main tutorials can create a voice call contact. Cell Phone Jammer Aliexpress Is a brief description of the basic principles. Introduction to the basic principle of mobile communication: The principle on the mobile phone is as follows: within a certain frequency range, the mobile phone and the communication base station are connected according to electromagnetic waves, and data information and sound transmission are carried out at a certain serial port baud rate and deployment method. Introduction to the basic principles of mobile phone signal jammers For the above basic principles of communication, the mobile phone jammer will go to the high-end scanner at a certain rate at a certain rate during the whole process of work. The scanner rate can produce error codes in the message format data signal received by the mobile phone, and the mobile phone cannot check all normal data information transmitted from the communication base station, so that the mobile phone cannot establish a connection with the communication base station. The main manifestations on the mobile phone are the search network, poor signal, no service system, etc.