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Emf Blocking Cell Phone Case Pong

Savard Louis 2022-01-20

In order to create a fair and equitable environment for candidates, the school will open Emf Blocking Cell Phone Case Pong during the college entrance examination, which will affect the call quality of customers around the examination room, such as frequent call failures, missed calls, dropped calls, intermittent calls, slow Internet access, etc. It will be back to normal after the exam. Please know and understand our customers. At the same time, in order to ensure smooth signals 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 for parents accompanying the test, and expand the hardware and software 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 by cell phone jammer 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 (during the retake of the college entrance examination in Algeria in 2016, the domestic social network was directly blocked).

There are Emf Blocking Cell Phone Case Pong 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 can't 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. Method 1: Due to the rapid development of wireless network, it has now developed to 4G network, and many test rooms use older signal 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 signal jammer is to shield the mobile phone by interfering with the mobile phone signal of the specified band, as long as the receiving and transmitting frequency of the mobile phone is modified, it can be prevented from being shielded. The mobile phone signal jammer only blocks the mobile phone signal of 900-1800MHZ, while The receiving and transmitting frequency of the mobile phone is 850-1900MHZ, which is much larger than the shielding range of the mobile phone signal jammer, so as long as the receiving and transmitting frequency of the mobile phone 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.