Instructions For Building A Cell Phone Jammer

The mobile phone signal jammer communication principle, 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 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. The mobile phone is manifested as a search network, no signal, no service system and other phenomena. For the uplink and downlink channels of the mobile phone system, it uses techniques such as frequency multiplication, frequency division, and frequency hopping filtering to analyze the required shielding frequency; customize a spherical shielding space according to the size of Instructions For Building A Cell Phone Jammer power, and automatically form a shielding magnetic field within the specified range. Make mobile phones (including PHS-PHS GSM-China Unicom, China Mobile, CDMA-China Telecom) mobile phones in this space invalid. When the mobile phone jammer is in the working state, it can make the mobile phone's signal receiving and sending function in the specified range invalid, unable to dial out and dial in, so as to achieve the purpose of compulsory prohibition. cell phone jammer It is mainly suitable for general civilian use and practical use in large-scale places such as prisons and detention centers, which may have certain problems.

With the development of the communications industry, especially 5G technology, mobile communications have brought great convenience to people’s lives, and the negative effects on high-secret occasions such as prisons and detention centers have become more and more obvious. If mobile phones are brought into prison and used by criminals, it will cause great harm to the management and safety of prisons, detention centers and other places. I have to mention Instructions For Building A Cell Phone Jammer here. Only by establishing a truly effective signal shielding system can prisons and detention centers provide strong physical defense protection. However, due to the current mixed market, many cheap mobile phone jammers are restricted by performance indicators, reliability, and operating conditions.