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The working principle and scope of mobile phone jammer

Perfectjammer 2020-12-30

cell phone jammer

The mobile phone jammer can effectively shield all mobile phone signals of CDMA (China Telecom), GSM (China Mobile, China Unicom), and 3G.

The mobile cell 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 message signal received by the mobile phone. The mobile phone cannot detect the normal data sent from the base station. Cannot establish a connection with the base station. The mobile phone is manifested as a search network, no signal, no service system and other phenomena.

General mobile phone jammer transmitting frequency range:
(1) 869-894 MHz
(2) 925-960 MHz
(3) 1780-1920 MHz
(4) 2010-2145 MHz

According to "GB 8702-1988 Electromagnetic Radiation Protection Regulations",
During the working period of 8 hours a day, the average value of the electromagnetic radiation field parameters in any continuous 6 minutes should meet the following table

The measured values ​​of electromagnetic field intensity of mobile phone jammers of regular manufacturers are far below the limit specified in the "Electromagnetic Radiation Protection Regulations" (GB8702-88) (the level of electromagnetic radiation is equivalent to that of mobile phones), and has little impact on the human body.

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