# Can the interference range of the mobile phone signal jammer reach 1-2 kilometers?

Among the questions that customers ask us about products, there is a question that customers are most likely to ask and want to know the answer most urgently, which is: We hope to purchase super-power cell phone jammer and require coverage of jamming signals The range can reach more than 1 km. In the face of such urgent inquiries from customers, we are actually not willing to tell them with a clear negative answer, and we can only explain the reason patiently. Here, we will focus on explaining why the interference range of mobile phone signal jammers cannot reach 1-2 kilometers.

From the conventional understanding, the greater the power of the mobile phone signal jammer, the greater the coverage of the interference signal. However, since the transmit power cannot be increased without limit, there is an upper limit. Nowadays, in a set of high-power mobile phone signal jammers, in order to achieve a completely effective jamming effect for various mobile phone formats, 10-12 high-power mobile phone signal jamming modules must be installed at the same time, corresponding to the mobile phone For each communication frequency band, the transmission power of each signal interference module is determined by the maximum output power value of the power amplifier device. At present, the available power values of power amplifier devices are mostly 50W or 100W, and very few can reach 200W. It is not that there are no power amplifier devices with larger values, but because the usage is very small and the cost is too high. In addition, due to the increase in the power value of the power amplifier device, the overall power consumption of the device will also increase rapidly, which will also lead to the need to increase the heat dissipation performance of the device. For example, adding a radiator will also cause the volume and weight of the device to increase. increased badly.

According to the above analysis, the upper limit of the RF power of the interference module in the high-power mobile phone signal device is 100W, and the maximum can reach 200W. In the case of this output power value, in the conventional application environment, its effective coverage radius is about 200 meters to 500 meters, but we must understand that: the effective interference range of mobile phone signals is actually different from that in the surrounding environment. The base station distance is closely related. As mentioned earlier, the interference range in a conventional environment can reach 500 meters or even more, but this is already an ideal usage scenario. In the real urban living environment, due to the increasing density of base station deployment , If you want to find an environment where there are no base stations within a few kilometers, it is already difficult.

So the final conclusion is: Even if it is a mobile phone signal jammer with a high power, its interference range is almost impossible to reach 1-2 kilometers.