A jammer is a very effective device for protecting yourself. When running, it scans from the low end to the high end of the front-end channel at a certain speed. This scanning speed will cause scrambling and interference to the message signal received by the mobile communication, and the mobile communication cannot detect the normal data sent by the base station, so the mobile communication cannot establish a connection with the base station. Mobile communication is manifested as network search, no signal, no service system, etc.
Of course, in terms of energy saving and heat dissipation, built-in cell phone jammers cannot be compared with external cell phone signal wave jammers. From the external structure point of view, the built-in cell phone signal jammer integrates the transmitting antenna, power supply and heat sink in an external plastic shell, which has a more beautiful appearance and is plug-and-play. and-play, and requires the advantages of complex antenna connections, plug-in power, etc. It has great advantages in areas with large traffic and easy to manage, or in the examination rooms, conference rooms, and confidential places of some schools.
Perhaps many people know that GPS signal jammers were originally developed by the military to mislead the enemy's geographic location and target information. Then personalize the device for consumers who want to protect their privacy or prevent tracking. GPS jammers can cause harmful communication interruptions if not properly technically knowledgeable or used improperly.
There are many factors that affect the blocking range of a wifi jammer. The failure area of the open area is larger than the failure area of the building. Therefore, the measured interference radius is generally better than the actual range. Because the test is carried out in an open space. Since the signal can be blocked/interfered by stone walls, the mesh can create Faraday cages (including "bad" lead windows) and metal insulators like tin foil, reducing the reliability of indoor wifi jammers.
