Many schools have been busy recently, because the days of the college entrance examination are counting down day by day, and they are preparing non-stop materials and machines for the examination room. This is to enable candidates to take the examination in a stable and orderly environment. This is also the responsibility of the school. So recently we can see that a kind of machine has been installed in the test room. This is the test signal jammer that many schools have vigorously promoted recently. It is a kind of problem that can effectively counteract electronic signal cheating, although it is so It is effective, but an unknown point is that when it is actually put into use, its effect is also different depending on the installation place and situation.
Although the size of the shielding range we have seen can be found in the instruction manual that comes with the test signal isolator, this data is a laboratory data and is for reference only, and the actual use depends on different situations. First of all, whether there is a base station within 500 meters of the vicinity, this is one of the reasons that affects the shielding range, and the impact is different according to the length of the distance. Pay attention to this, and secondly, the test signal shield cannot pass through the wall. This will cause its shielding effect to drop significantly, and metal objects will also affect his shielding effect. Although these kinds of problems will affect the effect of the test signal jammer, it is still the most effective helper to eliminate electronic cheating.