Mobile jammers are no longer a new thing abroad, and they have also been sold on the Chinese market in the past two years. Some radio enthusiasts have even developed a set of design drawings and published them on the Internet. The principle is actually very simple. In layman's terms, it is like "speaking loudly than talking softly." Regarding the working principle of this Cell Phone Signal Jammer Circuit Diagram device, there is such a professional description: “The working principle of a mobile phone is within a certain frequency range. Transmission. And for this communication principle, cell phone jammer Scan from the low end frequency of the forward channel to the high end at a certain speed. This scanning speed can cause garbled interference in the message signal received by the mobile phone, so the mobile phone cannot detect the normal data sent from the base station, and cannot establish a connection with the base station. "
Because it only interferes with the downlink signal, this kind of equipment will not affect the mobile base station during use, nor will it affect the normal use of other electronic equipment. Therefore, in the propaganda of the business, this equipment is called: "Adopting foreign advanced technology, Cell Phone Signal Jammer Circuit Diagram mainly for small places at home and abroad that require safety and confidentiality, such as private bosses, confidential offices, negotiation rooms, mobile vehicles, Mobile politicians and business dignitaries guard the scene, etc., carefully developed high-tech products based on the actual situation of mobile communications at home and abroad... Give you a security and a peace."