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2018年07月13日

Where need to use a cell phone signal jammer

Where can cell phone signal jammer devices be used


There have been several fires across the country caused by the use of mobile phones. A gas station exploded when its driver used his mobile phone while filling up the gas, causing many people to die.


According to the upstream and downstream channels of the mobile phone system, the shielding frequency of 4G jammer is analyzed by using the techniques of frequency doubling, frequency division and frequency hopping filtering.


According to the power size of the shielding device, a spherical shielding space is customized to automatically form a shielding magnetic field within the specified range, making mobile phones fail in this space.


When the jamming device is in working state, it can make the mobile phone transceiver signal function within the specified range fail, unable to dial out and dial in, so as to achieve the purpose of mandatory prohibition.


It can be used in various places such as examination room, meeting room, gas station, oil depot, church, hospital, court, military center, library, movie theater, etc.



Why do gas stations need signal blocker?


There have been several fires across the country caused by the use of mobile phones. A gas station exploded when its driver used his mobile phone while filling up the gas, causing many people to die.


When the phone's battery starts up and the bell rings, a satisfying energy spark that causes a slight spark may cause a fire. For the safety part, it has been a long time since the regulation of petrol stations to stop the use of mobile phones was put in place, but now the performance is not satisfactory.Gas station equipment is controlled by computer, wifi jammer affects the normal operation of equipment, causes the banning of measurement, more important is that mobile phone in the process of call can present a spark, vulnerable to fire, gas station blasting. Installing mobile phone jammers at gas stations could prevent some tragedies.


As a result, the gas station that belongs to the fire prevention heavy ground not only stops the use of mobile phones in the station, but also is best not to use mobile phones within two or three meters around the gas station.


Cell phone signal jammers


Reference:


https://www.perfectjammer.com/wiki/working-principle-of-jammers.html


https://www.perfectjammer.com/6-bands-wifi-jammer-how-to-use.html


https://www.perfectjammer.com/buy-uav-jamming-gun.html




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