In China, wireless wifi jammer has become standard equipment in examination rooms. For example, high school and college entrance examinations, postgraduate exams, civil service exams, and various qualification certificates will use wifi jammers to prevent candidates from contacting the outside world through wireless signals. In order to cope with the situation during the examination, schools around the country are also stepping up preparations for the examination, especially the construction of the examination room. In order to prevent candidates from cheating through communication tools such as mobile phones, schools are purchasing and installing wireless signal shielding equipment. The wireless jammer can block the 2G, 3 G, 4G, 5G, and WiFi signals of mobile phones, so that the mobile phone cannot work normally, and can effectively prevent students from cheating using electronic devices such as mobile phones. It is precise because the wireless wifi jammer has such a good interference effect that it has become one of the necessary equipment in many examination places.
In order to ensure the quality and range of the shielding effect when purchasing a wifi jammer device, it is best to conduct a field test on the wifi signal jammer. Because the external environment of each examination room is different, especially since some examination rooms are relatively close to the communication signal base station, the low-power wifi jammer may not achieve the required shielding effect due to the influence of the signal base station, or even fail to shield This requires a more powerful wifi jammer. Therefore, when purchasing a wireless wifi signal jammer, it is best to test it at the actual use site of the signal jammer.
