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source:Industry News release time:2020-09-25 Article author:sznbone Popular:Prison Jamming system
Signal shielding, generally speaking, can be divided into ordinary shielding and high-quality shielding.
Ordinary shielding, its technical characteristics are mainly based on shielding principles, using a large number of low-power or high-power equipment to fight against, staying on simple technical solutions.
High-quality shielding, its technical characteristics adopt strong signal digital frequency hopping technology, which reduces radiation by 150 times compared with ordinary shielding technology; mainly outdoor shielding, reducing indoor radiated power by hundreds of times; using multi-channel combined technology, full-frequency antenna replacement N frequency-dividing antennas, suitable for wireless remote, lay the foundation for distributed antennas; use distributed antenna technology to reasonably allocate shielding power, spread power signals, reduce antenna radiation, provide tens of times the efficiency, and eliminate dead ends and leaks ; Jike’s unique TD synchronization technology, for China Mobile’s 3G (TD-SCDMA) and 4G (TD-LTE) networks, only shields the downlink pilot time slot to prevent interference to the base station, obtained by the China Mobile and Radio Management Committee The recognition, while reducing radiation dozens of times.
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