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How to calculate signal jammers shielding range

Fullmer Erik 2022/07/10

  Cell phone signal jammers scan from the low-end frequency of the channel to the high-end at a certain speed 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 announced from the base station. , within a certain plan, the mobile phone cannot be connected with the base station, so as to achieve the purpose of shielding the mobile phone signal.

  The frequency announced by the mobile phone signal jammers 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 transmission power of the mobile phone signal jammer is less than the channel power delivered by the base station to the mobile phone in the environment at that time, then The shield can't be shielded, as long as the power of the signal shield is greater than the power delivered by the base station to the mobile phone, so that the shield can be effectively shielded. Therefore, any shielding device will show different shielding intervals when used in different signal environments, and the base station density, base station orientation and base station power built by the operator cannot be the same.

  That is to say, how many meters gps jammers 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 directly block it. 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 glass material, the attenuation after penetration is relatively small.

  So next time you ask how many meters you want to shield, you must ask how far the base stations are in the environment, and whether they are used indoors or outdoors, whether they need to pass through walls, etc.