In every exam season, intense preparations for exam work will begin. Invigilators have come up with many methods to prevent high-tech cheating. Among them, the wifi frequency jammer is still an effective shielding measure. But here is a reminder that there are many types and models of wireless wifi bluetooth jammer. Before purchasing, you must first clarify your own needs to avoid bad shielding effects and accidents in the examination room. Also pay attention to the correct way to use a wifi signal jammer
First of all, it is necessary to clarify what place is used. Generally, the wireless frequency jammer of the examination room type is used in the school, because it is more suitable for long-term work and is more durable. Secondly, how big is the area that needs to be shielded? If the area is larger, you should choose a larger power point, and if the area is small, you can choose a smaller shielding power. Also, which frequency bands need to be shielded, are China Mobile, China Unicom, and Telecom all shielded? Still just need to block some frequency bands.
At this point, we recommend that you want to achieve the best results after purchasing a wireless frequency jammer, depending on the method used. There are:
①Indoor bluetooth signal jammer is recommended to be placed at a height of about 180cm-250cm, preferably with an angle of forward tilt.
②Whether there are obstructions (such as walls, metal products) between the jammer and the mobile communication equipment. The interference signal emitted by the radio frequency jammer will be attenuated to varying degrees after passing through the obstruction, please try to avoid it.
③The farther the environment where the jammer is applied is from the base station, the stronger the shielding effect of the jammer will be.