There is a radio monitor that can help you get the Cell Phone Jammer For Room electromagnetic wave signals in those frequency bands that you don’t care about. Before the start of the test, the signal strength generated by various legal radio wave devices such as mobile phones, radios, and TVs around the test room are recorded in the test room. After the test starts, in the car, suitcase, and office radio monitors. Start all together, you can receive all the signals in the entire radio wave frequency band, when the cheating tool starts to send answers to the examination room, cell phone jammer There will be "an extra piece" of radio wave signals of unknown origin on the monitor, and it is difficult for the signal of the cheating tool to escape the ears of the sophisticated detector.
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