The use of hand-held mobile phone signal jammers in the examination room
Handheld cell phone signal jammer (also known as portable cell phone jammer/blocker/suppressor/truncator/isolator/conference information security machine) is the advanced technology of our factory. Fields, such as school examination rooms, small conference rooms, etc., according to the actual situation of domestic and foreign mobile communications, the successful development of interference products, it can block GSM/CDMA/ DCS/PHS/3G/4G/5G, mobile phone signal and WIFI signal.
Make it impossible for mobile phones to make and receive calls in the area, and will not interfere with the work of other electronic devices in the environment. When the phone is far away from the shielding range, it can resume normal use. Give you a safety, but also a Ningjing.
The college entrance examination mobile phone signal jammer is equipped to prevent candidates from cheating using mobile phone communication. After the mobile phone signal jammer is turned on, it will interfere with the reception and transmission of communication signals, so as to prevent candidates from using mobile devices to cheat and violate regulations. In addition to being used in school exams, cell phone signal jammers are also suitable for various places with wireless routers, laptops and desktops with wireless LAN cards, and computers and wireless routers can directly communicate with the Internet.
letter, so there is the possibility of leaking through the wireless network. At this time, using a mobile phone signal jammer to interfere with WIFI can provide security protection for fixed and wireless local area networks.
In order to ensure the shielding effect of the examination room and realize the interference of the mobile phone signal jammer to the wireless network, it is necessary to ensure that the signal power sent by the mobile phone signal jammer is greater than the signal field strength of the target interference area, especially the 4G5G base station dense signal bandwidth is relatively wide. Mobile from 2515- 2675MHZ Telecom 3400-3500MHZ, Unicom 3500-3600MHZ have reached the bandwidth of 100-160M, and the anti-interference ability of the base station is stronger. Shenzhen Texin Electronics Co., Ltd. and Xiamen Innoxun have jointly developed a 5G RF amplifier chip YP352833. The working frequency band is in At 3.5G, the power can reach 2W, and the location where the jammer is used is less than 100 meters away from the base station, the signal field strength covered by the base station is very strong, and the effective shielding area of the mobile phone signal jammer is small, so you should pay attention to this when using it. , tx-cm10 cell phone signal jammer is an interference product developed by Shenzhen Texin Electronics Co., Ltd. with practical functions and convenient design. It can block the network signal within 5-30 meters, and use high-power co-frequency scanning to interfere with the downlink signal of the base station, which realizes the efficient shielding of 4G5G signals and ensures the safety of the required places.
