Prisons are different from conference rooms, courts, examination rooms, etc. Once a cell phone jammer is installed, the equipment is required to operate 24 hours a day, and this is the case all year round. This has very high requirements on the performance, quality and power supply of the jammer . In terms of appearance, it is absolutely impossible to choose a shielding device with an external power adapter. Why do you say that, because this kind of power adapter cannot withstand the use of the machine without interruption for 24 hours. Although the price is indeed cheap, it will not take a month or two. They are all broken, and if they are repaired, they have to be disassembled and sent back to the manufacturer, so this is a waste of capital, manpower, and material resources, and it will also give the prisoners the opportunity to make chaos. Therefore, the prison system must choose the mobile phone signal jammer with industrial-grade power supply to ensure the machine can work stably for a long time.
The space environment of the prison area in a prison is more complicated, unlike meeting rooms, courts, examination rooms, etc., which are just a single room. Therefore, when installing mobile phone signal jammers, one prison area or several prison areas or even the entire prison must be considered comprehensively, and the interference signals must be evenly distributed. The places that need to be communicated must be reserved, and the places that do not need to communicate must be guaranteed to be unable to communicate all year round. Therefore, try to choose a high-power mobile phone signal jammer with a directional working antenna instead of a large number of simple mechanically listed low-power jammers. This is not only low in efficiency, large in engineering, high radiation and power consumption, and particularly troublesome to maintain. It is easy to be destroyed by prisoners.
