Can the test signal blocker block all communication signals?

Can the test signal jammer shield all communication signals? Speaking of which, many people are unfamiliar with the test signal jammer device. In fact, it has been widely used in the college entrance examination examination room. In the college entrance examination last year, many examination rooms installed this kind of equipment. The response has been very good, and it has been proven to have a good effect on preventing electronic signal cheating. Starting this year, it has been vigorously promoted so that more examination rooms can also install shields.

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Nowadays, the emergence of shielding device has solved many hidden dangers of disrupting the order in the examination room, so that candidates can take the exam in a fair environment. The principle of this kind of test signal jammer is actually to isolate the electronic signal to make the communication signal of the mobile phone fail, which can prevent the phenomenon of using mobile phones to cheat. Not only that, it also has a good shielding effect for the WIFI2.4G signal. Say that the effective range is within a radius of 0 to 30 meters, generally a low-power test signal jammer is enough to cover an entire classroom, which meets the needs of the test room for shielding signals, and because the endurance of this equipment is generally three Although the heat dissipation is poor, it also leads to a particularly high price/performance ratio. It is especially suitable for schools to purchase signal shielding for examination rooms. Many customers have troubles about the purchase of test signal jammers. At this time, you can contact greatjammer to inquire about the price of test signal jammers. It is a manufacturer with many years of high-quality and rich experience in the development of jammers. It has one The first-class technical team provides technical support for product quality, which is deeply favored and selected by customers.

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