At present, the mobile phone has become a relatively close partner of people, and even the so-called "opportunity cannot be lost". At the same time, wifi is almost everywhere. When the mobile phone is not in use, the interference of the mobile phone signal to other electrical equipment is minimal. Relatively stable static electromagnetic field. When using a mobile phone, there is data exchange between the mobile phone and the base station, and random mutation signals are generated so that a dynamic electromagnetic field is formed around the electrical equipment. This dynamic electromagnetic field signal will induce mutation interference signals. cause malfunction of electrical equipment.
At present, smartphones generally support the GSM 2G / 3G / 4G signal standards of various operators for calls or online videos. Since 2019, the launch of 5G smartphones has made the functions of mobile phones more powerful. The old jammers before 2019 generally use smart jammers such as GSM, PHS, and other 2G frequencies for interference shielding, which will not have much impact on existing smartphones; ordinary mainstream wifi jammer before 2019 can basically effectively shield 2G and 3G 4G signal (4G shielding effect is usually not very ideal, generally within a radius of 5 meters), so if your mobile phone is within the range of the wifi signal jammer, the smartphone cannot be used.
Beginning in 2020, 5G wifi frequency jammer will be put into use in large numbers, so when you use 4G 5G to surf the Internet and make calls, the chance of interference is much smaller, but if you need a jammer to protect your privacy and security, signals of different styles or power Shielding can solve different problems. Jammer mart is committed to R&D, manufacturing, and sales of drone detection, interception, and countermeasure systems, drone countermeasure equipment, wireless signal shielding equipment, 5G mobile phone signal shielding devices, RF amplifier power amplifier modules, voltage-controlled oscillator VCO, DDS/FPGA Digital explosion-proof shielding system, a wireless signal detector, recording intelligent shielding device, etc. serve public safety and information security products.
