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What are the methods of shielding mobile phone signals?

What are the methods of shielding mobile phone signals?

  • 2022-07-29

There are many ways to shield mobile phone signals, restrict mobile phone calls, send and receive text messages or network access. Next, we will introduce the specific implementation methods in detail:

First of all, it can be divided into two categories according to the category. The first category is to shield the mobile phone signal by placing the mobile phone in an environment completely surrounded by shielding materials. Common practical applications such as:
1. The shielding room of the secret room, its wall interlayer, coating materials, doors and windows, etc., are all made of selected shielding materials;
2. Mobile phone shielding cabinet, mobile phone shielding box: Its cabinet is the selected metal shielding material. When the shielding cabinet is completely closed, a space for shielding mobile phone signals is formed inside;
3. Shielding bag, shielding bag: It is a shielding bag or shielding bag made of cloth with shielding function (usually containing metal wires inside);

The second type of way to shield mobile phone signals is to use electronic instruments such as signal jammers (signal jammers), which is the most common and very simple and convenient way to implement. There are many types of signal jammer products used, which can be roughly divided into:
1. The purpose of shielding mobile phone signals is achieved by means of power suppression after transmitting white noise signals. This is the basic working principle of the current mainstream and common signal jammer;
2. By retrieving and collecting the signal characteristics of the surrounding base stations, and then transmitting the processed signals, the normal handshake communication between the mobile phone and the base station cannot be completed, and the purpose of shielding the mobile phone signal is indirectly achieved. This approach is often referred to as cell phone signaling interference.

In addition to the above two types of shielding mobile phone signals, there are often people who want to install mobile phone software. Unfortunately, no mobile phone software can shield mobile phone signals. Installing a so-called APP with a shielding function on a mobile phone can only shield your own mobile phone, and there is no function of shielding mobile phone signals for other users.



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