Cell Phone Jammer In Public

Nowadays, various electronic devices are emerging in an endless stream. Some of them can even evade detection after being disguised. Cheating candidates enter the exam room to output the questions to the outside world, and then people outside the exam room help to answer the questions in order to achieve the purpose of cheating, and the basis of all this That is-it must be spread through the Internet! In this case, signal shielding is particularly important. How does signal shielding work? To put it simply, take a mobile phone as an example. The mobile phone needs to communicate with other devices outside the examination room through a signal tower, while wireless communication needs electromagnetic waves to carry. According to the characteristics of electromagnetic waves, both devices need to be within a certain frequency range. Sending and receiving, so cell phone jammer In Public is the frequency that affects your electronic equipment so that the frequencies of the two parties are different, so as to achieve the shielding effect. After seeing this, many netizens also think that they should not choose to compromise in the face of this kind of thing, because there are still many companies that are very kind.

Although a mobile phone is a wireless communication device that is used wherever it goes, there are also invisible wires dragging it, that is, the mobile phone base station. Whether making a phone call or answering a phone call, the first step is to establish contact with a nearby cell phone base station. If you hold a mobile phone in each of your left and right hands, and use the mobile phone in your left hand to dial the mobile phone in your right hand, the electromagnetic wave of the mobile phone is not as simple as passing directly from the left hand to the right hand, but will travel a long way from the left hand phone to hundreds of meters away. Mobile phone base station, and then take a big circle to send back to the right-hand mobile phone (except for Bluetooth function). Normally, the base station brother and the mobile phone brother are chatting in full swing. The radio wave signals sent by the two parties come and go, but when Cell Phone Jammer In Public is turned on, they will "beat gongs and drums" around the mobile phone, and the signal power is much higher than the received base station signal. Double the "noise" radio wave signal, the mobile phone can’t hear what the base station is talking about, cannot receive the signal from the base station normally, and the connection between the two is cut off.