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How to determine the blocking range of signal jammer

Perfectjammer 2022/08/01

  The signal jammer gps scans from the low-end frequency of the channel to the high-end frequency at a certain frequency during the operation. This scanning speed can cause garbled interference in the received message signal of the mobile phone, so that the mobile phone cannot detect the normal microwave signal data from the base station. The mobile phone cannot establish a connection with the base station to achieve the purpose of shielding the mobile phone signal.

  To put it simply, the frequency of the radio waves emitted by the mobile phone signal jammer disturbs the frequency of the mobile phone to receive the base station. The jammer and the base station are destined to be a competitive connection. If the channel power is higher, then the jammer will not be able to shield it. Only the power of the signal jammer is greater than the power delivered by the base station to the mobile phone so that it can be effectively shielded.

  Therefore, any shielding device will show different shielding effects when used in different signal environments, and China Mobile, China Unicom and China Telecom will be different, because the base station density, base station orientation and base station power built by these three operators cannot be the same. of.

  That is to say, how large the shielding range of the mobile phone signal jammer and how many meters it can shield is not only related to its own transmission power, but also related to the distance between the base stations in the use environment. Another important factor is obstacles. If it is a metal material, it will be blocked directly; if it is a solid wall of reinforced concrete, it will attenuate less than 10 times after penetration; if it is a wooden board or a glass material, the attenuation after penetration is relatively small.

  Therefore, if you want to determine the shielding range of the mobile phone signal jammer, you must know the distance of the base station in the environment where the signal jammer is used, and then whether it is used indoors or outdoors, whether it needs to pass through the wall, etc. It is best to install the signal jammer gps in the actual use scenario to test it.