The full band jammer has been vigorously promoted and put into use. Now the full band jammer can be seen in the examination rooms of major schools. Why do more and more schools choose to install this kind of equipment? In fact, it is only when there is demand that it will be popular. It is precisely because the problem of cheating has become more and more rampant in recent years, and various frequent cheating methods are frightening. In order to effectively curb the trouble of this cheating phenomenon, this full band jammer specially used in the examination room was born. Its emergence has been of great help to many examination rooms, More and more people have chosen it as a means to eliminate electronic signal cheating.