Cell phone jammers create a fair and just environment

In order to create a fair and just environment for candidates, the school will open the wireless signal shielding device during the college entrance examination, which will affect the call quality of customers around the examination room, such as: frequent call failures, no connection, dropped calls, intermittent calls, slow Internet access Waiting for the scene, the test will return to normal after the end of the test. Please know and understand our customers.

At the same time, in order to ensure the smooth signal around the campus, the operator has arranged in advance communication engineers to test the entrances and exits of each test center and the rest area of ​​parents accompanying the test, and expand the software and hardware capacity of nearby base stations to ensure that high traffic, High Flow. We have done our best to keep your communication flowing, except for the signal being blocked during the exam.

We know that every year in the college entrance examination, in order to prevent fraud in the examination, all communication signals in the examination room will be blocked. There are mobile cell phone jammer in the test room, and at the same time, there is a radio monitor outside the test room that can help to deal with electromagnetic wave signals in those frequency bands that mobile phone jammers cannot care about, and monitor radio wave signals of unknown origin in real time.

The working principle of the signal jammer used in the college entrance examination is to bury useful electromagnetic wave signals in a large number of useless signals. So what should you do if your phone is blocked?

Method 1: Due to the rapid development of wireless network, it has now developed to 4G network, and many test rooms use older mobile phone jammers, and they are helpless to 3G and even current 4G networks. The cracking method: use 3G or 4G Card – It feels like there is no 2G network now.

Method 2: Band cracking method. Because the working principle of the school’s mobile phone jammer is to shield the mobile phone by interfering with the mobile phone signal of the designated band, as long as the receiving and transmitting frequency of the mobile phone is modified, it can be prevented from being blocked. The mobile phone jammer only blocks the mobile phone signal of 900-1800MHZ, while the mobile phone’s The receiving and transmitting frequency is 850-1900MHZ, which is much larger than the shielding range of the mobile phone signal jammer, so as long as the mobile phone’s receiving and transmitting frequency is adjusted to the maximum in the mobile phone settings, the mobile phone signal can be received normally.

Method 3: WIFI cracking method. This method has relatively high requirements on the environment, and the premise is that there must be an available wireless network around. Some cell phone signal jammers cannot block WIFI signals and can communicate with the outside world.

Method 4: Bluetooth cracking method. It is suitable for short-distance communication in the shielded area. Maybe some WiFi jammers ignore the transmission function of Bluetooth without shielding, so we only need to install the Bluetooth messaging software on the mobile phone to communicate normally in a small range.

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