The principle of wireless signal jammer

With the development of science and technology and the increase of jammers, the emergence of wireless signal jammers has greatly solved some of the use problems. In order to better popularize the use of this device, the principle of its jammers will be introduced next.

At the same time, 4g wireless communication needs to ensure a sufficient signal-to-noise ratio to effectively receive and complete the communication. Then according to the above working principle, we can conclude that the 4g wireless signal jammer is generally composed of power supply, electronic scanning control unit, segmented radio frequency module unit, amplifier unit, transmitting antenna unit and other parts. After the signal generator generates a scanning signal and passes through the inverter, it enters the oscillator to be modulated to the mobile communication working frequency band, and then is amplified by a power amplifier and a voltage regulator tube to control the power. The amplified frequency sweep signal is transmitted into the air in the form of radio waves.

The wireless signal jammer forms garbled interference in the received message signal of the mobile phone due to the frequency sweep signal (increase the ratio of the noise signal to the device threshold), the mobile phone cannot receive the normal 4G data sent by the base station, so that the mobile phone cannot establish a normal connection with the base station. , so that the mobile phone is disconnected from the base station communication network. The mobile phone shows the phenomenon that the search network has no signal, no service system, etc., to achieve the blocking effect.

Today's society is developing faster and faster, the more obvious is the progress of science and technology. It is inevitable that the 4G era will replace the past 3G and 2G. Now 4G is not hot, and 5G is emerging again. However, 4G signals are still the mainstream. So, can the signal shielding of the examination room shield the 4G signal? This is a very critical question. In fact, the new test room signal blockers on the market have been upgraded, and blocking 4G signals is almost standard. However, some of the cheaper test room signal blockers on the market can only block 2G or 3G signals.

People who don't know this industry are likely to be fooled very easily. The signal blocker in the examination room that shields the 4G signal must have at least eight antennas. At present, eight-wire shields are divided into two types, one is an external antenna, and the other is an internal antenna. The two are very easy to distinguish. The one with antennas is similar to the router, but it has more antennas than the router. As for the built-in, it is the size of a set-top box. Just plug it in directly. Most 8-wire shields can shield many types of signals. Some can even block 5G signals. For example, the test signal jammer produced by Beijing Texin Electronics Company. The 4G era will come to an end one day, but Texin Electronics has always been at the forefront of technology. In order to help customers solve their problems, they built a space to block 5G signals in the new signal blocker in advance. In this way, even if the 4G era is over, there is no need to replace the hardware facilities. Therefore, in this way, the cost can be greatly saved for the customer.