No matter what kind of exam it is, it is a big event. After several years of hard study and hard work, millions of candidates finally passed the exam in these two days. If you do well in the exam, you will be in a good university. If you choose good resources, if you do poorly in the exam, you will be selected. Lack of resource opportunities. Many people think that this approach is good, but many others think that such results are temporary, excessive, and unfair. Although people have different opinions on whether the college entrance examination is fair, the fair system of the college entrance examination has been used for many years and has become increasingly perfect, especially on issues of fairness. At least the college entrance examination is a better way for poor students to make progress!

In order to ensure the fairness and impartiality of the examination and protect the vital interests of the candidates, cell phone signal jammers are used as a powerful tool in the college entrance examination examination room. Like other important exams, the use of mobile phone signal jammers in the college entrance examination examination room has also attracted much attention, so many misunderstandings in use must attract everyone's attention.

cell phone jammer

1. In different usage situations, the test panel signal monitor will have different effective shielding ranges. This problem is closely related to the field strength at the site. Different types of mobile phones may not have the same shielding range at the same location, so the choice should be based on the actual situation.

2. Factors that affect the shielding range include but are not limited to: distance, direction, barrier-free objects opposite the base station, wall materials of site buildings, installation height of the shield, installation specifications, etc., and other factors should be paid attention to.

3.. Each antenna has a frequency band identifier, which must correspond to the frequency band identifier on the host, and the connection of each antenna must be ensured before turning on the shield. The device cannot be used without the antenna. .

4. When the shield runs for a long time, the surface temperature can rise to more than 40 degrees, which is normal.

5. Mobile phone signal jammers are generally installed at a height of 1.8 to 2.5 meters, and the installation location should be clear between the target shielding area and the target shielding area. If the antenna is to be installed vertically upward on the wall, the antenna can be folded 90 degrees and then vertically upward.

6. During the use of mobile phone signal jammers, in order to avoid possible interference with certain electronic devices, the following commonly used devices should be used within 1 to 2 meters.