Who invented the mobile jammer?how to manage cell phones in the classroom?
Recently, many people feel that the mobile phone signal is poor at night, and it feels like it was interrupted by others. I personally feel that it is a bit like a trace of a mobile phone jammer, sohow to manage cell phones in the classroom? Who invented the mobile phone jammer?
In 1999, Tang Tai led a technical team in his laboratory and successfully developed the first how to manage cell phones in the classroom in China. This is a technical research team composed of teachers and students of Tsinghua University. Its founder is Tang Tai. This powerful thing with four tentacles is a mobile cell phone jammer that will be installed in some college entrance examination examination rooms by the examination management department. In the summer of 6 years ago, my country's first mobile phone shielding instrument was born here.
To crack the mobile phone jammer to let the mobile phone signal, we must first understand its principle:
Mobile phone signal jammers are divided into omnidirectional and directional types according to the shape of the shield. The omnidirectional type is an olive shape, and the directional type is a fan shape. Therefore, the omnidirectional jammer is better than the directional mobile phone. The shielding area of the device is large;
how to manage cell phones in the classrooms to generate certain electromagnetic waves to interfere with the downlink of its mobile signal. If the power of the jammer is greater than the power of the local mobile signal, then the mobile phone will have no signal. If the power of the jammer is less than the power of the local mobile signal, the mobile phone There will be a signal.
So the way to crack the jammer is to install a mobile phone signal amplifier.