Whether it is the college entrance examination or the driving school subject two test, a signal blocking device will be used in the examination room, that is, a mobile phone signal blocker, which can be used to block various high-tech cheating devices. Yes, in the current situation where mobile phone signal blockers are so normalized, some people still don’t know how it works, and even a small number of people don’t know what a mobile phone signal blocker is, and what information this device can block. So today we will explain this knowledge point to you. The following is about what types of signals a mobile phone blocker can block.
Nowadays, the common mobile phone signal blocking instruments on the mobile phone signal blocker market can basically interfere with the mobile phone signals and Wi-Fi numbers of all operators on the market, and also cover everyone’s VIFI, in order to avoid any good opportunities to cheat. In addition, depending on the frequency band of the signal, the type of signal blocked by the mobile phone signal blocker will also be different. Nowadays, the network is more developed, and most of every mobile phone signal blocker can block 4G signals on mobile phones. However, the level of science and technology is developing faster and faster. At present, 5G in China has gradually begun to become popular. This kind of mobile phone blocker that originally only blocked 4G signals also needs to be upgraded to a 5G blocker.
There are also some people with other intentions who use UHF and VHF signals to transmit signals. These two signals are generally used for walkie-talkies, but these people with other intentions use this signal to make some micro-power transmitters, and then sell receivers to some candidates who are going to take the exam, and then transmit the test answers through the transmitter. If the cell phone jammer adds the interference control module of UHF and VHF signals to the equipment, it will be more perfect.
In the industry, topsignaljammer is at the forefront of high-tech. The mobile phone signal jammer suitable for shielding 5G signals has been successfully developed and put on the market. The market feedback is that the effect of interference with 5G signals on mobile phones is very good. With the development of science, it is inevitable that the technology of mobile phone signal jammers will be replaced by the industry if they are not updated. Such mobile phone signal jammers are generally used to shield mobile phone signals. If you want to increase the type of shielded signals, such as Wi-Fi numbers, shielding of UHF signals and VHF signals, or interference in some special frequency bands, our company can tailor it for you.