What is the role of 4G 5G mobile phone signal jammers?

In order to ensure the information security of sensitive areas, many units will install mobile phone signal blockers in accordance with relevant regulations and requirements. The blockers can block the 2G, 3G, 4G signals of mobile phones within a certain range, as well as the transmission and reception of WiFi and Bluetooth signals, thereby effectively blocking communication and data transmission.

With the widespread application of 4G technology, most of the mobile phones currently used by individuals rely on 4G signals, and 2G and 3G mobile phones are becoming less and less common. Therefore, blockers that only provide signal shielding for 2G and 3G are gradually being eliminated because they cannot shield 4G signals, which has led to the development of 4G mobile phone signal blockers. With the advancement of technology, we are about to enter the 5G era, and 5G signal blockers are likely to appear to meet the needs of the times.

From a technical point of view, smartphones can be regarded as a potential monitoring device. Even when the phone is turned on, it can silently transmit audio and video information to the receiver. Even if it is turned off, as long as the battery is still there, the proprietary eavesdropping device can still capture the surrounding environmental information. In addition, 4G mobile phones can transmit data, audio, video and images at high speed, surpassing the transmission capacity of 3G. This means that without proper precautions, a large amount of information may be stolen without being discovered. The best-selling wifi jammers and GPS jammers in recent years.

Therefore, with the widespread use of 4G mobile phone signals, cell phone jammers must be upgraded accordingly. It is essential to conduct rigorous testing on the jammers used and verify their shielding effect on various mobile phone signals.

The principle of mobile phone signal shielding is to transmit interference signals to destroy mobile phone signals. By transmitting high-power signals of specific frequencies, the surrounding electromagnetic environment is destroyed, making it impossible for mobile phones to receive and analyze the signals of base stations, thereby effectively shielding mobile phone signals.

The range of mobile phone signal jammers ranges from 1 to 25 meters, and the coverage area is about 100 square meters (although the presence of base stations nearby may affect the effectiveness of the jammer).

4G and 5G mobile phone signal jammers are often used in safe places such as standardized examination rooms, confidential meetings, courts, and scientific research institutions.

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