Best Landline And Cell Phone Robocall Blocker Block Data Network

In fact, to put it simply, if we treat these cheating electronic devices as two-way radios and play the radio outside the test room in the test room, then Best Landline And Cell Phone Robocall Blocker is an internet celebrity, making your radio sound inaudible. Our cell phones are these electronic devices. It needs to communicate with other devices through cell towers, while wireless communication requires electromagnetic waves. According to the characteristics of electromagnetic waves, our equipment needs to receive within a certain frequency range, so the mobile phone signal jammer will affect the different frequencies on both sides of your electronic equipment, so as to achieve the shielding effect. Some people think I don't need a data network, I use Bluetooth and Wi-Fi. In fact, these networks can be blocked by Mobile cell phone jammer . The Bluetooth and Wi-Fi frequency bands have been added to the scanning range, because in fact the data of each network and the Bluetooth wireless network are in different frequency bands, these are included in the scanning range of the mobile phone jammers, which can be blocked. The original cell phone jammers were designed to fight crime and serve law enforcement agencies and the military.

Buying a signal shield yourself is also suspected of being illegal. After all, the power of a signal jammer can turn out to be a bad idea in the hands of criminals. In fact, we just simply look at the principle of mobile phone jammers, which is very simple and easy to understand. They can achieve a shielding effect by affecting different frequency bands. Yesterday at 4 o'clock in the afternoon was the time when each examination room was open to candidates from all over the city. Candidates came to each test center and carefully checked the route, the location of the test room, and the seating order. The reporter also walked into the campus of Yantai No. 1 Middle School with the largest number of candidates. There will be 1,246 candidates taking the college entrance examination here. When the reporter looked at the examination room yesterday, he found that the examination room and classrooms of the North Middle School Building were all hexagonal, humanized and conducive to ventilation. Each classroom has 4 fans, which are turned on by the invigilator. The " Best Landline And Cell Phone Robocall Blocker ", which was used in the examination room for the first time this year, has also been installed. The reporter took out his mobile phone and tried to make a call, but there was no signal and could not answer the call.