What are the factors that affect the shielding effect of cell phone jammers? from dojammer's blog

First, the cell phone signal strength from the base station to the use site

What is cell phone signal strength? It is the signal strength emitted by the base station. The closer the distance to the base station, the stronger the cell phone signal from the base station to this place. Then, in different places, the signal received by the mobile phone is not always the same. Everyone should have experienced intermittent mobile phone call quality and slow Internet speed. This is caused by the strength of cell phone signals in different places. There are also many factors that affect the strength of mobile phone signals. First, the distance to the base station and whether there are obstructions between the base station and the site. If there are obstructions, the signal will also attenuate and the signal strength will also decrease. Professionals can measure detailed signal types, spectrum distribution, and signal strength parameters through professional equipment spectrum analyzers. Android phone users can also download and experience it through a mobile phone APP (cellular-Z). Sometimes the distance from the two use sites to the base station is similar, but the shielding effect of the cell phone jammer is naturally different. This is because there are obstructions between the base station and the use site of the cell phone jammer, such as buildings, trees, mountains, etc. In short, the stronger the cell phone signal strength at the use site, the smaller the effective shielding range of the cell phone jammer.

Second, the structure and area of ​​the use site

Whether there is a partition indoors at the use site, what material the partition is made of, and the size of the use site are also factors that affect the shielding effect of the mobile phone jammer. The mobile phone jammer emits a white noise signal with the same frequency as the mobile phone signal. After passing through the wall, the signal strength emitted by the mobile phone jammer will be severely attenuated, which may not be enough to shield the mobile phone signal in the compartment. If the area is too large, the mobile phone jammer cannot completely shield the mobile phone signal of the entire use site. Because the signal emitted by the cell phone jammer will gradually weaken with the increase of distance, it is necessary to consider adjusting the position of the mobile phone jammer or increasing the number to supplement the unshielded area. For reference, SMa-818B5, this cell phone jammer has a beautiful shape and no noise when working, which is especially suitable for use in conference rooms.

Third, the RF power of the interference module of the cell phone jammer

Cell phone jammers can be divided into many interference modules according to different frequency bands. The power emitted by the interference module is also a decisive factor in determining the shielding range of the mobile phone jammer. Theoretically, the greater the transmission power of the jammer's jammer module, the greater the shielding range of the cell phone jammer. At the same time, the penetration of the wall will also increase, and the shielding effect of the cell phone jammer will naturally be better. Of course, we cannot only pursue the interference effect and make the transmission power of the jammer's jammer module higher and higher. At the same time, we must also consider the radiation hazards of the mobile phone jammer. The greater the power, the greater the harm of electromagnetic radiation to the human body. It is recommended to choose cell phone jammers with different transmission powers according to different environments.