A few days ago, a Weibo posted in Sanshui, “Sanshui Middle School’s dormitory is engaged in mobile jammers. It is rumored to be debugging. Anyway, I can’t receive them in the dormitory. I can’t imagine that if something happens in the dormitory, it will be very limited and broken What are the consequences of using a fixed card phone to save lives?” This Weibo received 146 reposts in just two days. The reporter noticed that most of the reposts were students from Sanshui Middle School.
Someone also conducted a comprehensive analysis of the mobile cell phone jammer. Zbsay said, "The fifth-generation jammer, the five antennas are 3G, GSM, CDMA, DCS, PHS, the radius of action is 25m, the temperature condition is -10~55 degrees Celsius, the product itself The heat can reach 50 degrees Celsius. When installed in this location, it is very likely to fail in summer. We can also get a 600MHz anti-shielding device in the classroom and turn the frequency back in the dormitory."
Is this true? The reporter contacted the student Wen who posted on Weibo. Wen is a first-year high school student in Sanshui Middle School. According to him, he discovered that his mobile phone had no signal while in the school dormitory. Later, many students found out in the dormitory building A and B of Sanshui Middle School. A mobile phone jammer was installed on the stairs on the second floor to the west, and the jammer was nailed to the beam on the second floor of the dormitory. "As far as we know, the dormitories on the west side of the 2, 3, and 4 floors of A and B have no signal. They may be debugging or are far away. The block is large. There is still a signal on the east. The female dormitory has not been installed. Experiment on the west side."
Student Wen was very puzzled by the school’s move, “How the school does this for us to communicate, how to contact the outside world when an accident occurs, and the use of shielding is obviously a waste of money.” And there is a widespread spread among students. The radiation problem of mobile phone jammers, "How much electromagnetic radiation does a mobile phone jammer that can shield such a large range of signals have to emit to interfere with the signal? My dormitory is next to the thing, and I don’t know how much radiation I eat when I sleep." Student Wen also wondered, “Because there is no plug at the stairs of Block B, the school unplugged the emergency light and plugged the cell phone signal jammer in order for the mobile phone jammer to work.”