Is the Jamming range of mobile phone signal jammers fixed?

When considering buying a cell phone jammer, many customers want to know the shielding range of the mobile phone signal jammer. However, it must be understood that the shielding range of the signal jammer is not fixed.

The mobile phone signal jammer interferes and confuses the information signal received by the mobile phone by quickly scanning the mobile phone signal. This interference prevents the mobile phone from detecting the normal microwave signal data sent by the base station. According to the design, the mobile phone cannot establish a connection with the base station, thereby effectively shielding the mobile phone signal.

Generally speaking, the frequency emitted by the mobile phone signal jammer interferes with the frequency at which the mobile phone receives the signal from the base station. There is a competitive relationship between the jammer and the base station. If the transmission power of the mobile phone signal jammer is lower than the power transmitted by the base station to the mobile phone in a specific environment, the jammer will not be able to effectively shield the signal.

The power of the mobile phone signal jammer must be greater than the power transmitted by the base station to the mobile phone to play an effective shielding role. Therefore, the shielding range of the jammer will be different in different signal environments. For example, China Mobile, China Unicom, and China Telecom, due to the different density, orientation, power, etc. of the base stations, the shielding range will also be different. Best-selling GPS jammers and WIFI jammers in Europe and America.

That is to say, the shielding distance of the mobile phone signal jammer is not only determined by its own transmission power, but also affected by factors such as the distance between base stations in the use environment (base stations may include large transmission towers, signal amplification antennas on the roof of buildings, signal amplification distribution in certain buildings, etc.), and whether there are obstacles.

For example, metal materials can directly block signals, and the signal attenuation after penetration of reinforced concrete walls is small, which may reach 10 times, while the signal attenuation after penetration of wooden boards or glass materials is relatively small.

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