Wifi signal jamming devices are mainly used in examination rooms, prisons, gas stations, mobile phone bombs, oil depots, detention centers, interrogation rooms, special security and confidential sites. Different types of mobile phone shielding devices have different power and interference ranges. The shielding range of the mobile phone shield is divided into three types:
1: Under normal circumstances, the shielding radius of the low-power wifi network jammer device is 0~50 meters (the shielding effect is different according to the distance from the base station to the base station, and the shielding range is mainly determined by the strength of the magnetic field). The low-power wifi network jammer device belongs to a small-range shielding product, which is relatively cheaper, and is more suitable for an open area, and has a weak wall-piercing capability.
2: For some test sites, if there is no base station within 500 meters, one desktop wifi blocker in the test room within 100 square meters is enough. As for the 200-300 square meters ladder classroom, it needs 2 to 3 sets. Some small conference room rooms only You need to install one. For some large spaces, you can install more than 3 sets, which will form a honeycomb shielding effect and complement the dead angle.
3: When the magnetic field is strong and weak, when the magnetic field is weak, install one wifi signal jammer in 2.5 classrooms. If there are 10 classrooms in the past, install 3 in the aisle. Most external wifi signal shields are omnidirectional antennas that are shielded 360 degrees from the center of the machine. When the magnetic field is strong, if there is a base station within 100 to 500 meters, the stronger the magnetic field, the more points need to be installed to install the cell phone signal blocker.
When purchasing a wifi jammer, we need to clearly understand the environment around us and the size of the site we use, and then decide to purchase the number of cell phone signal shields. When we don't use the signal shielding device, we can choose to turn off the device, which will save energy, be environmentally friendly, and extend the life of the equipment. For some factory areas, factory areas, cafeterias, warehouses, etc., when there is no one at night, there is no need to The cell phone shields in these locations are continuously turned on 24 hours a day.