Now more and more qualification tests are starting to block cell phone signals. They are now used even in high school exams. So, can the device effectively prevent cheating?
Jammer-MartMarch 2020
There is no doubt that signal jammers will prevent candidates from cheating on exams. China, Japan, France and other countries have used signal jammer equipment in major exams. The main purpose of this device is to cover the normal signal source by sending out interference signal waves, so as to shield the surrounding signals.
There is no doubt that signal jammers will prevent candidates from cheating on exams. China, Japan, France and other countries have used signal jammer equipment in major exams. The main purpose of this device is to cover the normal signal source by sending out interference signal waves, so as to shield the surrounding signals.