Advantages and disadvantages of built-in and external antennas in mobile phone signal jammers
Mobile phone signal jammers with external antennas are generally made of metal shells. It refers to the fact that the body of the mobile phone signal jammer is made of metal material, usually aluminum, which is used as both a shell and a heat sink. So what are the advantages and disadvantages of this metal shell mobile phone signal jammer? Let's explore together.
Firstly, let's analyze the advantages of a metal shell mobile phone signal jammer:
1. Simple structure: Aluminum profiles themselves are the most commonly used heat dissipation materials, with excellent heat dissipation performance. Moreover, their heat dissipation teeth can be processed into many shapes, which is also convenient to directly serve as the outer shell of mobile phone signal jammers. They have a certain level of aesthetics and craftsmanship;
2. Excellent texture: After processing, aluminum profiles can have a variety of shapes, and after surface treatment, they have a good hand feel, giving people a more textured first impression,
3. Cost economy: Due to its large production volume and wide application, aluminum profiles have a relatively low cost, which greatly reduces the material cost of mobile phone signal jammers. At the very least, it can save the cost of a dedicated shell and the mold used for the shell;
Then let's talk about the drawbacks of metal shell mobile phone signal jammers:
1. Poor safety: Due to the fact that the case is a heat sink and the mobile phone signal jammer requires a significant amount of heat dissipation during long-term operation, the temperature of the metal case can quickly rise, and sometimes the surface temperature can even reach 60-70 degrees. Human hands cannot directly touch it, otherwise there is a risk of burns;
2. Product unattractive: The metal shell of the mobile phone signal jammer has an external antenna that is directly screwed to the antenna link base on the body. Nowadays, there are more and more mobile phone signal jammers that need to be shielded. When all 2G, 3G, 4G, 5G, and WIFI signals need to be effectively shielded, a mobile phone signal jammer needs at least 10-12 frequency bands, which corresponds to the need for 10-12 antennas. When such a number of antennas are twisted onto the device, visually it looks like a hedgehog, and there is no longer much beauty to be seen.
3. Poor anti damage ability: This type of mobile phone signal jammer has an antenna twisted onto the body and an external switch power supply, which is easily damaged. For example, someone maliciously unplugs or discards the antenna, while others intentionally disconnect or damage the power supply, and so on. This poor vandalism prevention capability will bring high management and maintenance costs to users in the future.
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