Can low-power mobile phone signal shielding systems pass through walls to achieve interference effects in the house?

We often receive customer requests for mobile phone signal jammers that are small in size, light in weight, and easy to carry. The specific usage scenario is to place the jammer on one side of the wall and emit interference signals to interfere with the area on the other side of the wall.

According to customer needs, the appropriate device is a low-power cell phone jammer. We have suitable models for this type of product. But the key question is whether the signal can penetrate the wall and effectively interfere with the signal inside the building.

Before answering this question, you need to understand two key factors: signal transmission characteristics and the impact of wall materials on signal penetration.

Regarding signal transmission characteristics, the interference signal emitted by our mobile phone signal jammer is a white noise interference signal corresponding to the frequency of the mobile phone. Unlike X-rays, wireless signals behave more like light waves or sound waves when encountering obstacles such as walls. They have limited penetration ability and show reflection, refraction and other phenomena.

Now let’s consider the impact of wall materials on signal penetration. Different wall materials and thicknesses have different effects on the penetration ability of wireless signals. Taking the interference signal emitted by the mobile phone signal jammer as an example, if the interference signal encounters a solid reinforced concrete wall, the wall will reflect most of the interference signal and it will not be able to penetrate the wall. However, if the interference signal faces an ordinary brick wall, its penetration ability will be stronger than that of reinforced concrete, but the signal attenuation will still be relatively large. For example, if it encounters a gypsum board wall or a glass wall, the signal can penetrate and the attenuation is very small, about -8dB. The best-selling wifi jammers and GPS jammers in recent years.

Finally, can a low-power mobile phone signal jammer penetrate the wall and achieve the expected interference effect in the building? This depends on two factors. First, the transmission power of the interference device itself plays an important role. The greater the transmission power, the better the signal penetration and interference effect. Secondly, it depends on the material and thickness of the wall. Facing a solid reinforced concrete wall, it is unrealistic to expect the signal to penetrate and interfere with the signal in the building.

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