A mobile phone signal jammer is an electronic device used to block or interfere with specific signals and is widely used in the field of information security protection. With the rapid development of communication technology, mobile phone signal jammers are also constantly evolving, from the initial GSM signal jammer to today’s 3G, 4G, and even 5G signal jammers.signal jammer
Classification of cell phone jammer
Cell phone signal jammers can be divided into several main categories based on the type of signal they block. Early GSM signal jammers were mainly used to block GSM signals, but with the popularity of 3G and 4G networks, 3G and 4G signal jammers have gradually become mainstream. These devices effectively block signals in specific frequency bands, preventing the phone from making calls or transmitting data. At present, the research on 5G signal jammers has also made significant progress. Although it has not yet been fully popularized, it is expected to occupy an important market share in the future.
Functions of cell phone signal jammer
The main function of a mobile phone signal jammer is to emit interference signals in the same frequency band as the target signal, making it impossible for mobile phones to receive and send signals normally.GPS jammer These devices can usually operate on multiple frequency bands, such as GSM, DCS, CDMA, PHS, 3G, 4G and 5G, etc. Modern mobile phone signal jammers can not only block voice calls, but also block data transmission and Wi-Fi signals to ensure the security of information in a specific area.
Application scenarios
Cell phone signal jammers are widely used in multiple scenarios. As the high school entrance examination and college entrance examination are approaching, many schools have begun to purchase invigilation equipment, including handheld mobile phone signal jammers. These devices can effectively block candidates’ mobile phone signals in the examination room to prevent cheating. In addition, mobile phone signal jammers are also widely used in conference rooms, cinemas, libraries, prisons, military bases and other places that require information security and a quiet environment.
Portable Cell Phone Signal Jammer
Portable mobile phone signal jammer, also known as handheld mobile phone jammer, blocker, suppressor, cutter, isolator or conference information security machine, is a new type of equipment newly developed in recent years. It is small in size, easy to carry, and suitable for various temporary occasions. For example, during exams, proctors can use handheld jammers to ensure fairness and information security in the exam room.
Impact and Solutions
Although mobile phone signal jammers play an important role in information security protection, their application has also caused some controversy. For example, Kuwait’s Ministry of Health recently issued a statement warning that cell phone signal blockers installed in some public places may have a negative impact on medical devices such as hearing aids and pacemakers. The electromagnetic waves from the jammer may affect the normal operation of medical equipment and may even change the heart rate, causing serious consequences.
