In order to determine whether a mobile phone signal jammer can provide wall-to-wall shielding, it is necessary to consider various scenarios.
Begin by examining the mobile phone signal shielding device itself. This device emits a targeted radio frequency signal that specifically affects mobile phone signals. As this signal encounters obstacles in its transmission path, it becomes attenuated. The degree of attenuation varies depending on the type of obstacle it passes through. For instance, when faced with a solid steel-concrete wall or a brick-concrete wall, as well as a reinforced concrete wall followed by two consecutive brick-concrete walls, the signal can effectively block small and medium-power mobile phone signals. Due to the attenuation of the radio frequency signal, the shielded mobile phone signal is typically unable to penetrate through the wall. Ultimately, the shielded mobile phone signal, being a wireless signal, does not possess the ability to pass through obstacles and reflect.
Various wall materials exhibit varying levels of attenuation when it comes to blocking mobile phone signals. For instance, walls made of light steel keel gypsum board or glass, as well as wooden doors, have lower levels of attenuation. Moreover, even if the mobile phone signal is blocked, it can still have an impact on the area behind the wall through open doors and windows or via reflection and refraction, creating an illusion of the signal-blocking device having penetrating capabilities.
A signal jammer enclosed in a metallic casing.
Is this metal-cased signal jammer effective in its functionality?
To begin with, let us discuss the benefits associated with this particular signal jammer.
The aluminum profile possesses a straightforward design and exhibits a commendable ability to dissipate heat. It serves as the most frequently employed material for heat dissipation, showcasing exceptional performance in this regard. Moreover, its heat dissipation teeth can be fashioned into various shapes, allowing for convenient utilization as the outer casing of a signal jammers. This not only enhances the product's aesthetics but also showcases the craftsmanship involved.
Aluminum profiles offer a cost-effective solution as they are produced in large quantities and have a wide range of applications. This significantly decreases the material expenses associated with signal jammers. In fact, it can even eliminate the need for a custom housing, resulting in substantial cost savings.
Now, let us delve into the drawbacks associated with signal jammers that are encased in metal.
Version 1: The product's aesthetics are compromised by the metal casing and the direct attachment of external antennas onto its body. To effectively block all 2G, 3G, 4G, 5G, and WIFI signals, a mobile phone jammer must have a minimum of 10-12 frequency bands, necessitating the presence of 10-12 antennas. As a result, the device resembles a hedgehog, lacking any visual appeal.
Due to the radiator-like structure of the casing and the significant heat dissipation required by the signal shield during prolonged operation, the metal casing tends to rapidly increase in temperature. In fact, the surface temperature of the casing can occasionally reach as high as 60-70 degrees. It is important to refrain from touching it directly with your hands to avoid the risk of burns.
It is important to note that regardless of whether it is a high-power or small-to-medium-power mobile phone signal jammer, it is not advisable to use it through walls. This is primarily due to the uncertainty of its shielding effectiveness. Hence, when opting to install a mobile phone signal blocking device, it is recommended to place it in an area where mobile phone signals need to be blocked, rather than using it through walls.
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