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Block Unwanted Numbers From Calling My Cell Phone Is Related To Its Own Power

Perfectjammer 2022/05/04

For the fairness and impartiality of the exam, the school will use a mobile phone jammer that can achieve the shielding effect during the exam to prevent candidates from cheating using mobile phones and other communication devices. This move can help the school to ensure the fairness of the exam. The responsibility of many students. How to choose the examination room Block Unwanted Numbers From Calling My Cell Phone in a targeted manner? Because the working principle of the mobile phone signal jammer in the examination room is to send radio waves to interfere with the connection between the mobile phone and the communication base station, so that the mobile phone cannot be used for normal calls and networking. The shielding effect of the test room Cell Phone Jammer is determined by the distance from the nearby communication base station and its own power. If you want to select the test room shielding device in a targeted manner, you need to select it according to the specific environment of the use scene. Professional examination room shielding device supplier consultation.

In some military and police units, secret-related units or secret-related meetings, in order to prevent secrets from being leaked through communication tools such as mobile phones, signal jamming equipment is usually used to safeguard secret-related projects. How to choose signals for secret-related projects? Interfering with the device? In order to ensure that the confidential information of classified projects will not be leaked, when selecting Block Unwanted Numbers From Calling My Cell Phone equipment, we must first ensure that information will not be leaked through various channels, and the current technology communication frequency bands are numerous, so the signal interference equipment must be shielded in all frequency bands , 2G/3G/4G/5G networks, WiFi, walkie-talkies, wireless headsets, Bluetooth devices, etc. of mobile phones need to be shielded. Then it is to ensure the shielding area. For example, if the conference room is 200 square meters, if the power of the signal interference device is insufficient, or because it is close to the signal tower, it is impossible to cover all the area in the conference room, so that the corner of the conference room can be sent to the outside world. signal, there will be serious consequences.