Many users have the need for signal interference of the whole building, and they will ask us how to choose the mobile phone jammer. It should be easy to install and operate, and the important thing is to achieve signal interference. 

First of all, determine the area of each floor of the whole building, and then determine the layout of each floor, whether there is a compartment inside, and preferably have the structural drawings of each floor, so that we can roughly mark the jammer points according to the drawings, so as to count the number. 

Secondly, it is better to send someone to the roof of the building to take a slightly clearer picture in the southeast, northwest and four directions. We can find the distribution of the surrounding base stations and estimate the visual distance between the base stations and the building based on the pictures. The approximate signal strength from the base station to the building can be determined. It is convenient for us to judge the range of interference signals of various types of mobile phone jammers in the building more accurately. 

If there are many internal compartments on the floor, such as classrooms, dormitories, office buildings, etc. Generally, low-power machines will be selected, and cellular distribution will be used to supplement the coverage blind area, which is cost-effective. If there are too many points, the result is that more points will be installed during installation. The implementation effect will be relatively good. If there is a blind area after the installation is completed, just continue to add points at the location of the blind area. 

If there are few compartments, such as the standard plant, the internal space is transparent, and the middle position cannot be installed with low-power machines, then you can choose to use one or two medium-power mobile phone jammers, which are installed at both ends of the plant, and use directional antennas to cover the inside of the plant, or directly install the mobile phone jammer at a higher position in the middle of the plant, and choose to equip with omnidirectional antennas to cover a wide range of signals, if there is a blind area, Then use a low-power machine to supplement the blind area.