My friend has a professor who only asks students to stand up and read aloud the content of the text message, and then explain the relevant dialogue. His usual words are: “Since your text message is much more important than the lesson I am going to teach, please share it with us so that we can all benefit from your information.” After reading the first embarrassing text , The cell usage rate dropped sharply. It is not appropriate to use a short-range cell disruptor during the inspection. I believe that professors have an obligation to do all they can to prevent cheating in exams. Interfering devices are usually used to interrupt or control communications. Designed to protect your area and property from threats. It can be effectively used to eliminate threats. It will interfere with GPS signals. The jammer’s antenna is large. Different types of mobile cell phone jammer have different sizes and shapes. The interference range of mobile phone jammers depends on the model. This is very effective for congesting nearby areas.
A smartphone that can be connected to the Internet is connected to a mobile phone base station (base station) through radio waves, and transmits voice, characters, and images to the other party through a communication line. It supports a convenient life. Communication is possible within a radius of several kilometers. This is a kind of wifi interference, which emits radio waves, which is essential for wireless communication. However, many problems have also occurred. Someone was talking loudly in the car. Someone walks while typing cell phone mail. In this case, I want to block the phone signal. I want to disable the signal. The interfering device has arrived. I use a cell phone jammer to block radio waves on the train. In the blink of an eye, the radio waves disappeared and you can no longer use it. The problem is radio interference in public transportation. Therefore, the correct use of jammers is very important. Using mobile phones is a problem. Place devices that interfere with mobile phone radio waves. It was introduced after getting tired of customers. The device emits interfering radio waves. It may emit enough radio waves to interfere with the call. This will worsen the radio waves received by the mobile phone. Your phone will not be able to make or receive calls. This type of mobile jammer exceeds the “weakness” stipulated in the Radio Law and requires a license.