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How to block signals? Where can signal blockers be used?

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There are many occasions around us where the use of mobile phones is prohibited, such as examination rooms, offices, classrooms, factories, meetings, etc. In addition to handing over personal mobile phones to the security department for management in advance, signal blockers can also be used in these places. Mobile phone signals, Wi-Fi signals, and other network signals in special occasions can be effectively blocked. In this way, after there is no signal from the base station, everyone will not play with their mobile phones, so that the expected goals can be effectively achieved. The emergence of mobile phones has provided a very good communication tool for the general public, shortened the distance between people, and brought great convenience to everyone's life. However, with the increasing popularity of mobile phones, basically everyone has their own mobile phones, and mobile phones have become the level that people do not leave their phones, but this has also brought great threats to many special venues. Therefore, the sales market of signal blockers has also emerged.

So, where can signal blockers be used? The most common places for signal blockers are some information confidentiality agencies, government agencies, colleges and universities, etc. You can check the content for details.

1. Fairness in various large, medium and small examinations is the basic principle of social development, and we have to face many examinations in life, from elementary school to junior high school, college entrance examination, to national-level examinations such as college entrance examinations and civil servant recruitment. In order to prevent students from cheating, signal blockers and other methods must be used in various large, medium and small examinations to block the data signals in the examination room, so as to achieve the requirement that mobile phones cannot communicate and go online, which can also effectively prevent students from cheating.

cell phone jammer

2. Party and government agencies, companies, party and government agencies, companies, etc. also have requirements for signal blockers. The frequency of meetings held by party and government agencies, companies, etc. is really high, and in order to allow participants to focus more on the meeting and learn the spirit of the meeting more deeply, they must prevent the use of mobile phones. When the leaders report their work, they turn on the signal blocker to block the mobile phone signal. The leaders are not disturbed when they speak, and the audience below can also understand the specific needs of the leaders.

3. Some areas that need to be strictly controlled, such as defense areas, prisons, detention centers, etc., and some areas with very high confidentiality levels, should be strictly supervised for mobile phones. In defense areas, prisons, detention centers and other areas, shielding mobile phone data signals can greatly prevent the possibility of leakage.

Therefore, in addition to the applicable occasions of the three major types of cell phone signal blockers described above, other areas such as gas stations, petrochemical plants, hospitals and outpatient clinics where calls are prohibited, assembling mobile phone signal blockers, the actual effect is very satisfactory. When using a mobile phone signal blocker, you can choose according to the applicable scenario. For larger occasions, you can use a signal blocker with a larger output power.

Within a certain frequency range, mobile phones and communication base stations are connected through electromagnetic waves, and information and sound effects are transmitted at a certain serial port baud rate and modulation method. During operation, the signal jammer should output low output power to the high-end scanner at a certain speed. This scanning speed can cause error code effects in the message format data signals received by the mobile phone. The mobile phone cannot detect the normal data transmitted from the communication base station, making it impossible for the mobile phone to establish a connection with the communication base station, thereby achieving the purpose of shielding the mobile phone data signal. The mobile phone mainly shows network search, poor signal, no service and other conditions.

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