If you want to make sure whether the wifi jammer can really effectively block the mobile phone signal is very important, when buying a wifi signal jammer, testing is a very important step.
How to test a wifi signal jammer?
The first thing to do is to test the shielding distance of the wifi jammer device. Cheating candidates use different mobile phone networks during the exam, especially 4G mobile phone networks (4G networks use broadband high-speed transmission methods, if the power of the wifi frequency jammer is not enough, it may not be able to block 4G).
Therefore, it is necessary to find all network mobile phones of the current mobile communication providers before testing, to ensure that each mobile phone network can meet the minimum of one classroom, and then test the shielding effect. Sometimes not.
There is one more important point: if it is a wireless wifi jammer with a metal shell, touch the front and back of the fuselage with your hands after 1 hour of power on. If the temperature is moderate and not hot, there is no problem. If it is very hot, it will not pass. Cause the power of the wifi bluetooth jammer is attenuated, it cannot work stably, and it is prone to burns.
