Mobile phone shielding device is a modern high-tech application
The mobile phone shielding device is a new environmentally friendly information security and confidentiality product newly developed by applying modern high-tech. The working principle of this product is roughly the same as that of the communication signal source. A fan-shaped shielding space is customized according to the power of the shielding device, and the normal signal connection between the signal source and the mobile phone is disconnected, so that the mobile phone in this space can be disconnected. Invalid, there is no way to receive or call out, so as to achieve the purpose of forcibly prohibiting the use of mobile phones, so as to ensure the safety and confidentiality of the scene.
The mobile phone shielding device is used in different application sites, and the effective shielding area will vary. This is closely related to the signal field strength at the scene. Different styles of mobile phones do not necessarily have the same shielding area on the same site. There are many factors that affect the shielding area of a mobile phone shielding device, including but not limited to: distance, orientation, and obstructions relative to the signal source. , The wall material of the on-site building, the installation height and installation standard of the shielding device, etc.
The components of a cell phone signal jammer usually include: a host, an antenna, and an adapter. When installing the device, because there is a relatively strong signal magnetic field within the corresponding distance between the host and the antenna (usually 20-30 cm), and there is also magnetic field interference around the 220V power cord (strong electricity) (usually 5-10 cm) Therefore, the placement of the installation address of each component is very important. If the placement address is not standardized, it is likely to cause interference to the emission of the shielded signal and affect the effect of the interference.
Installation Precautions:
The adapter should be more than 20cm away from the host; there is no strong current line (AC220V) within 20cm around the antenna; the installation height of the mobile phone signal jammer should be no less than 1.8 meters from the ground.
When the distance between the installation address and the base station is less than 200 meters, the interference effect is inversely proportional to the distance from the base station. That is, the closer the base station is, the smaller the interference radius will be.
Tighten the antenna of the mobile phone signal jammer before connecting the power supply. The antenna must be kept vertical (⊥). The numbers marked on the antenna and the numbers marked on the antenna hole on the host should correspond to each other. Connect the antenna and turn on the power of the host directly.
