Many people know that cell phone jammer can block cell phone signals, but do you know what the shielding principle of cell phone signal jammers is? Let’s learn together:

The mobile phone jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during the working process. This scanning speed can cause garbled interference in the received message signal of the mobile phone, so that the mobile phone cannot detect the normal microwave signal data sent from the base station. , within a certain range, the mobile phone cannot be connected to the base station, and the mobile phone appears to be searching for the network, no signal, no service system, etc., so it cannot be used, and the purpose of disabling the mobile phone is achieved.

10 Bands Portable High Power Cell Phone Jammer Jamming GPS WiFi 4G

Its working frequencies are: 869~94MHz; 825~960MHz; 1805~1880MHz and 1900~1990MHz, etc. The working frequency bands are CDMA800, GSM900, DCS1800, PCS1900. When the mobile phone leaves the shielding range, it can fully resume normal use. The electrical signal sent by the mobile phone jammer is undoubtedly an electromagnetic signal, but this signal blocker will never have any device to communicate with it, so it will never be able to form a mutation signal. In other words, the signal is always in a relatively static state. , it will not interfere with other electrical equipment and harmless to human body.

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