How wifi jammer achieves the strict blocking effect?
Jammer-MartOctober 2022
The analysis of synthesis, attenuation, and reflection of indoor signals and interference signals is very complicated. Before shielding, the strength of the local space signal and the quality of the wifi jammer has a great impact on shielding. Different mobile phones have different effects. Generally, the anti-interference effect of mobile phones with a strong ability to receive weak signals is not necessarily good.
The direction of the base station and the direction of the shielded area of the mobile phone also affect the shielding effect. The general spatial signal strength is about -60 to -70dbm, the base station can reach about -40dbm within a few hundred meters, and the mobile phone reception strength range is generally between -35 and -95dbm. The higher the power of the mobile phone signal in space, the shorter the shielding distance.
The above is a conclusion based on the law of radio signal transmission in free space. In reality, there are many obstacles on the ground that affect the transmission of radio waves. The above can only be used as a qualitative reference, especially indoors. The above law is very different from reality. Therefore, this problem is very difficult-accurately calculated at one time and can only be determined according to the actual situation on site. Precise construction projects must carry out preliminary research and signal testing, and then design specific solutions. In the later stage, timely follow-up testing is required, and certain corresponding supplements can be made to be foolproof, that is, to achieve the effect of strict shielding.
The analysis of synthesis, attenuation, and reflection of indoor signals and interference signals is very complicated. Before shielding, the strength of the local space signal and the quality of the wifi jammer has a great impact on shielding. Different mobile phones have different effects. Generally, the anti-interference effect of mobile phones with a strong ability to receive weak signals is not necessarily good.
The direction of the base station and the direction of the shielded area of the mobile phone also affect the shielding effect. The general spatial signal strength is about -60 to -70dbm, the base station can reach about -40dbm within a few hundred meters, and the mobile phone reception strength range is generally between -35 and -95dbm. The higher the power of the mobile phone signal in space, the shorter the shielding distance.
The above is a conclusion based on the law of radio signal transmission in free space. In reality, there are many obstacles on the ground that affect the transmission of radio waves. The above can only be used as a qualitative reference, especially indoors. The above law is very different from reality. Therefore, this problem is very difficult-accurately calculated at one time and can only be determined according to the actual situation on site. Precise construction projects must carry out preliminary research and signal testing, and then design specific solutions. In the later stage, timely follow-up testing is required, and certain corresponding supplements can be made to be foolproof, that is, to achieve the effect of strict shielding.