What we are discussing here refers specifically to the interference distance of mobile phone signals. After consulting and comparing the product data of various high-power smart jammer manufacturers, collecting, sorting and comparing, we can learn that the nominal effective interference distance of a single set of interference equipment and a single module is generally 200-500 meters, even if the RF transmission power of the current single set of interference equipment is 100-200 W, and almost no manufacturer can achieve the nominal effective interference distance of more than 1 km. Why is this? There are two main reasons. The first is the selection of RF power amplifier devices. The maximum power of mainstream RF power amplifier devices in the market usually can only reach 200W. However high the power is, there is no such thing as too few shipments, too high the cost of the device or the need to customize the device to the power amplifier manufacturer. This led the manufacturers of high-power intelligent jammers to give up choosing such high-power power amplifier devices because of the cost problem. The second reason is that the current mobile base stations are very densely deployed. Especially in the main urban area of the city, there will be at least two or more mobile base stations within a randomly selected range of 1km. We should all know that the distance of mobile phone signal interference depends on the distance between the mobile phone smart jammer and the mobile phone base station, which is inversely proportional.

It can be seen from the above analysis that the maximum nominal interference distance of the high-power smart jammer that can be selected now is only about 500 meters. If it is applied in cities, it is almost impossible to achieve coverage distance of more than 1 km depending on one jamming device. However, if the base stations are built several kilometers apart in sparsely populated areas in the wild, it is possible that the coverage distance of a single high-power smart jammer for mobile phones can reach the level of 1Km.

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