Mobile phone signal jammers are mainly aimed at all kinds of examination rooms, schools, gas stations, churches, courts, libraries, conference centers (rooms), theaters, hospitals, governments, finance, prisons, public security, military areas and other places where the use of mobile phones is prohibited. It is understood that the Vehicle Mounted Cell Phone Blocker on the market can limit the mobile phone signal beyond 500M meters from the transmitter. The radius of signal shielding can be adjusted independently, and the coverage is more than 30㎡, and the power of cell phone jammer is generally 12W--480W. The high-power mobile phone signal jammer can not only shield mobile phone signals, but also effectively shield WiFi signals, GPS signals, and Beidou satellite signals. Among them, because the working frequency of WiFi and WLAN signals is in the range of 2.4GHZ or 5.8GHZ, if you need to block WiFi signals, it is recommended that you buy a high-power "Saiyuetong" SYT-G2100 portable 8-channel mobile phone signal jammer.
The cell phone jammer scans from the low-end frequency of the forward channel to the high-end frequency at a certain speed during the working process. The scanning speed can cause garbled interference in the message signal received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station. The mobile phone is manifested as searching the network, no signal on the mobile phone, no service system, etc. Portable cell phone signal jammer adopts imported IC and is independently developed, especially for small places at home and abroad that require special security and confidentiality, such as confidential offices, negotiation rooms, mobile vehicles, mobile political and business dignitaries to guard the scene, etc. , a high-tech product carefully developed according to the actual situation of mobile communications at home and abroad, Vehicle Mounted Cell Phone Blocker It can block GSM/CDMA/DCS/PHS/PCS/3G mobile phone signals within a radius of 0.5-15 meters (usually about 5-80 square meters). (The enhancement can block WiFi signals, GPS signals, and Beidou satellite signals), so that mobile phones in the area cannot make and receive calls, and will not interfere with the work of other electronic devices in the environment. When the mobile phone is far away from the shielding range, it can resume normal use.
