When choosing a conference room mobile phone signal jammer with built-in antenna, the antenna is completely invisible from the appearance of the shielding device. The jammer itself forms a whole, and the built-in antenna is also a kind of protection for the antenna, which can avoid transferring In the process, if you accidentally bump into the antenna, it is easy to break the connector between the antenna and the host. At this time, the shield can no longer be used and needs to be returned to the factory for repair. If you continue to use it, it will cause the radio frequency module inside the conference room signal jammer to burn out. If the signal shielding device with built-in antenna needs to be transferred, it is very convenient. You can directly grasp the groove handle on the back of the machine. It is simple and convenient. normal use of the device.
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The police frequency jammer purchased by the customer earlier did not have the operator's 5G frequency jamming module. With the gradual popularization of 5G signals, the original police jammers without 5G frequencies cannot shield and interfere with 5G signals, so it is necessary to upgrade the frequency of 5G signals to the jammers in order to form shielding interference for 5G frequency signals. .
According to the operator's 5G signal frequency division promulgated by the Ministry of Industry and Information Technology, and the original operator's 4G signal frequency, the 700M shared by radio and television and China Mobile, the 3.4G-3.6G frequency of China Telecom and China Unicom, and the 2555-2655 frequency of the original 4G mobile phone are spread spectrum To 2515-2675M, that is to say, to upgrade the 5G shielding module of the police frequency signal jammer, 2-3 modules need to be added, and the mobile 2.6G module needs to be spread spectrum. The shielding interference of 5G signals can be realized. Some friends will ask, why hasn't the frequency of 4800-4900M increased for mobile 5G? This is because the current frequency of 4.8G-4.9G has not been fully spread out. It is necessary to judge whether the police jammer needs to increase the jamming module of this frequency band according to different use sites.
Signal JammerRecently, many customers have been inquiring about how to choose a mobile phone jammer in different application scenarios, in which scenarios can high-power devices be selected, and in which scenarios should low-power devices be selected, this problem has been plaguing customers, and I will introduce to you next. In different application scenarios, you should choose a high-power machine or a low-power machine.
Under normal circumstances, it is recommended that if you need to shield the indoor environment, such as school classrooms, dormitories, courts, conference rooms, production workshops and other small and relatively transparent environments, you can use low-power cell phone jammer, because the cost of low-power machines is relatively small. It can be intermittent or uninterrupted in some areas where mobile phone signals need to be shielded, which can not only save costs, but also achieve the purpose of shielding mobile phone signals, and the cost performance is relatively high. If there is a blind spot for shielding in a certain area, you can also add a jammer to shield the mobile phone signal in this area near the blind spot, which has strong operability and convenient installation.
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