What is the function of 4G 5G mobile phone signal jammer?
In order to ensure the information security of important places and important positions, many secret-related units will install mobile phone signal jammers in some sensitive areas in accordance with relevant management regulations and requirements. When the mobile phone signal jammer device is working, it can disable the function of mobile phone sending and receiving signals within a certain range, including 2G, 3G, 4G mobile phone signals, WiFi, Bluetooth signals, etc., which cannot be used for communication connection and data transmission, so as to achieve the purpose of mandatory disabling.
With the full popularization of 4G technology, the mobile phones we use at present, whether it is China Mobile, China Unicom or Telecom, generally use 4G mobile phone signals. In addition to the elderly phones that use 2G and 3G, the market has basically been occupied by 4G mobile phones. The mobile phone jammers that provide signal shielding for 2G and 3G are facing the result of being eliminated because they cannot shield 4G signals. Therefore, 4G mobile phone signal jammers came into being. Now with the advancement of technology, we will soon enter the 5G era. I believe that with the advent of the 5G era, 5G signal jammers will still emerge as the times require.
In fact, from a technical point of view, a smartphone is equivalent to a "bug". A mobile phone in working state will quietly send the surrounding audio and video information to the receiver; even if the mobile phone is turned off, as long as the battery is not removed, the surrounding The environmental information can still be obtained by proprietary eavesdropping equipment; in addition, 4G mobile phones can quickly transmit data, high-quality audio, video and images, etc., the rate is much higher than that of 3G transmission, so if you are not careful, a large amount of information may be used for ulterior motives The person steals instantly in a hidden state.
Therefore, with the full popularity of 4G mobile phone signals, mobile phone signal jammers must be upgraded accordingly. For specific methods, the mobile phone signal jammers used can be strictly tested in time, and the shielding effects of various standard mobile phones can be tested on the spot.
Mobile phone signal blocking principle:
A common jammer is to shield mobile phone signals by transmitting interference signals. By transmitting a high-power signal of a certain frequency, the surrounding electromagnetic environment is severely damaged, and the mobile phone cannot normally obtain and analyze the signal from the base station, so as to achieve the purpose of shielding the mobile phone signal.
Cell phone signal blocking range:
The shielding radius of the shield is 1-25 meters, about 100 square meters in a specific area (if there is a base station around the shielding area, it will have a certain impact on the shielding effect).
4G5G mobile phone signal jammer applicable scenarios:
Standardized examination rooms, secret conferences, courts, scientific research sites and other secret places