The previous wifi jammer used segmented cut-off signals, and the signals were converted from time to time. However, this kind of equipment can transmit multiple signals at the same time, the signal is stable, and it can be shielded from a long distance, so don't take chances. Technology is becoming more and more developed now, and many companies are producing more and more advanced products. With the development of science and technology, I believe that the equipment in this area will only become more and more accurate in the future.
The Bluetooth signal jammer is an essential tool in the examination room to prevent candidates from cheating through technological means and escort the information security of the examination room. However, if we do not use the wifi signal jammer device correctly, the shielding effect will be poor, and an accident in the examination room may occur. In different use sites, the effective shielding range will vary accordingly. This is closely related to the signal field strength at the scene. Mobile phones of different standards may not necessarily have the same shielding range at the same site, so it is very important to detect the local signal frequency band. Factors that can affect the shielding range include but are not limited to: the distance from the base station, the orientation, the presence of obstacles, the wall material of the on-site building, and the installation height and installation specifications of the wifi frequency jammer. It is best to follow the manufacturer's requirements.