Introduction to the interference principle of the 5G test room signal jammer
With the continuous upgrading of communication technology, 5G network has gradually become popular, but in the examination room, the interference of mobile phone signals is still a serious problem. In order to ensure the fairness and safety of the test, the test room signal jammer came into being. This article will introduce the working method and interference principle of the 5G test room signal jammer.
1. Introduction of 5G test room signal jammer
The 5G test room signal jammer is a device specially used to block mobile phone signals. It can block all mobile phone signals within the scope of the test room, including 2G, 3G, 4G and 5G signals. This device can effectively prevent candidates from using mobile phones to cheat during the exam, and ensure the fairness and safety of the exam.
2. The working method of the signal jammer in the examination room
The working method of the test room signal jammer is to interfere with the mobile phone signal by emitting electromagnetic waves. When the mobile phone enters the range of the examination room, it will be interfered by the electromagnetic waves emitted by the jammer, so that it cannot be connected to the cell phone tower normally. As a result, the phone cannot communicate and cannot be used during the exam.
3. Introduction to the principle of the signal jammer in the examination room
The interference principle of the test room signal jammer is based on the interference principle of electromagnetic waves. Electromagnetic waves are fluctuating phenomena produced by the interaction of electric and magnetic fields, which can travel through the air. When electromagnetic waves encounter objects, they are reflected, refracted or absorbed. The test room signal jammer uses this principle to emit electromagnetic waves of a specific frequency, which can interfere with mobile phone signals, so that the mobile phone cannot be connected to the signal tower normally.
The interference principle of the test room signal jammer also involves the attenuation of the signal. Signal attenuation refers to the phenomenon that the signal gradually weakens during transmission. The electromagnetic waves emitted by the test room signal jammer will interfere with the mobile phone signal, which will intensify the attenuation of the signal, and eventually cause the mobile phone to fail to connect to the signal tower normally.