Collection: mobile phone signal isolator

It is said that jammers always have an effective interference range, which is for cell phone jamming device that only interfere with the downlink frequency band of mobile communications, while jammers that interfere with both the uplink and downlink frequency bands are not applicable. The interference of the uplink signal directly causes the deterioration of the signal-to-noise ratio of the mobile base station system and the deterioration of the communication quality. In other words, the uplink jammer affects the working indicators of the base stations around the interfered area, which causes interference in the area covered by these base stations, thereby causing large-area interference.

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