mini mobile phone 4g jammers play a protective role in prison safety
Cell phone jammers are used in prisons, which naturally have its purpose, and its function must be to block signals. Perhaps prison managers believe that the use of mini mobile phone 4g jammers can protect the security of the prison and help its management. Maybe a lot, and there are also many cases where cell phone jammer are used in prisons. There are other reasons for using mini mobile phone 4g jammers or prisons, but I must have my own consideration to do this.
mini mobile phone 4g jammers are mainly designed to prohibit the use of mobile phones in various examinations, schools, gas stations, churches, courts, libraries, conference centers (rooms), theaters, hospitals, government, finance, prisons, public safety, and military. The mobile phone signal shield can limit the mobile phone signal from the transmitting station to a place with a radius of> 20 meters beyond 500M meters. The shielding radius is adjustable, and the mini mobile phone 4g jammer only blocks the phone signal and will not affect other electronic devices. Save energy, the power is 20W-480w, and the mobile phone works within a certain frequency range. The mobile phone and the base station are connected by radio waves, and data and sound transmission can be completed through a certain baud rate and modulation method. The performance of the phone is to search the network,