Every year in the exam season, all parties start to prepare for the pre-exam work intensively. Invigilators have come up with various tricks to prevent high-tech cheating. Among them, the special Cell Phone BlockerSchematic Diagram in the exam room is still an anti-jamming device. However, as a well-known manufacturer of mobile phone signal jammers, Telecommunication reminds that there are many types and models of cell phone jammer . Before purchasing, users should clarify their own needs to avoid examination room accidents due to poor shielding effect, and also pay attention to the correctness of use methods. . First of all, I want to clarify the place of use. Most of the mobile phone jammers used in schools are suitable for long-term work and durability. The second is how big are we in the shielded area? For example, a room of 100 square meters or a venue of 1,000 square meters, etc., if the area is large, the power must be larger, and if the area is small, the shielding power can be adjusted. Then there are the frequency bands that need to be blocked. Are all of China Mobile, China Unicom, Telecom, and CDMA blocked? Still only need to block part of the frequency band.
At this time, we remind everyone that buying the right Cell Phone BlockerSchematic Diagram to achieve the best effect depends on the method used. The most important ones are the following: It is recommended that the indoor mobile phone signal jammer be placed at a height of about 180cm-220cm from the ground, and the angle is preferably forward. Check whether there are obstructions (such as walls, metal products, human bodies, etc.) between the mobile phone jammer and wireless communication equipment (mobile phones, etc.). The interference signal emitted by the mobile phone signal jammer will be attenuated to varying degrees after passing through the obstruction, please try to avoid it. The weaker the wireless communication signal strength in the use environment, the stronger the theoretical shielding effect of the mobile phone jammer. The farther the mobile phone signal jammer application environment is from the base station, the stronger the theoretical shielding effect of the mobile phone jammer will be.
