When the mobile phone is working, it is within a certain frequency range. The mobile phone and the base station are connected by radio waves, and the data and sound transmission are completed with a certain baud rate and modulation method. In view of this communication principle, How To Beat Cell Phone Jammer scans from the low end frequency of the forward channel to the high end at a certain speed during the working process. The mobile phone is manifested as a search network, no signal, no service system and other phenomena. Common mobile phone signal jammers on the market have operating frequencies: 869~894MHz; 825~960MHz; 1805~1880MHz and 1900~1990MHz, etc. The operating frequency bands are CDMA800, GSM900, DCS1800, PCS1900, WCDMA, etc. It can control a range of about 40 meters in diameter, using DC-DC converter input voltage and 5V output voltage. cell phone jammer When working, it will send out the frequency to interfere with the downlink signal of its base station. If the Power of the mobile phone jammer is greater than the Power of the local base station signal, then the mobile phone will have no signal. If the Power of the mobile phone signal jammer is less than the Power of the local base station signal, the mobile phone There will be a signal. Therefore, in your school examination room, the greatest possibility is that there is a signal base station near the school, and the Power of the mobile phone jammer is not suppressed.
In recent years, due to the multi-faceted popularization of mobile communication tools such as mobile phones, the use of mobile communication tools such as mobile phones to cheat has become a "secret weapon" for some candidates to improve their test scores. Relying on some illegal means, listening to some illegal vendors, or organizations and individuals that profit by providing answers, want to use the mobile phone in hand as an answer receiving tool or transmission tool to obtain ideal test results through fraudulent means, which seriously damages The fairness and seriousness of the exam! It is a great harm to most other students who usually study hard and learn from the truth! In order to strictly discipline the examination room and ensure fairness and justice to every reference person, through the installation How To Beat Cell Phone Jammer ,
