Cell Phone Busy Signal Not Blocked Blocks Voice Calls

Perfectjammer 2022/05/11

The data signal (234G) of the voice call is alternatively shielded. If you only shield 23G or only 34G, this can be changed before shipment. In addition, there are 2.4GWIFI, 5.8GWIFI, VHF, UHF and other frequency bands. How to understand it? That is, if you only want to block voice calls or Wi-Fi, the manufacturer can mainly push 2G3G on the server, and the cost will come out. This is the easiest place to fake, and it is also the area where manufacturers often play with cats. Because, to really measure the real power size, a professional spectrum analyzer must be used. The average customer is unlikely to have this Cell Phone Busy Signal Not Blocked machine equipment. Therefore, this level depends on the technical expertise of customers in selecting machinery and equipment. Output power size: cell phone jammer can generally be divided into small output power. medium output power. The power is large, and the output power is in the middle of 3W-100W.

Fairness and justice are just the basic rules of social development, and life requires a lot of examinations, ranging from elementary school to junior high school, junior high school to high school, to this year's college entrance examination, civil servant recruitment and other national-level examinations. In order to better prevent students from cheating, in various large, medium and small examinations, methods such as Cell Phone Busy Signal Not Blocked must be used to shield the data signals in the examination room, so as to meet the requirements that the mobile phone cannot communicate with the Internet, then also It can be very good to guard against students' cheating. Government agencies, enterprises, etc. also have requirements for mobile phone signal jammers. Government agencies, enterprises, etc. report a very high number of work, and in order to allow participants to concentrate more on the conference and learn more about the spirit of the training conference, it is also necessary to guard against the use of mobile phones. When the leading cadres report their work, they turn on the mobile phone signal blocker to block the mobile phone data signal. The leading cadres speak happily and listen carefully below.

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