The WilsonPro Pro 460230, 1050 passive distributed antenna system is the first FCC and carrier-approved in-line amplifier solution, providing reliable cell coverage deep inside hard-to-reach areas of buildings, such as equipment rooms, and lower floors of high-rise buildings. The system consists of two (2) units: a main amplifier and an inline amplifier, located up to 300 ft from the main amplifier. The inline amplifier compensates for signal loss up to 300 ft of Wilson400 cable. The WilsonPro Pro 1050 system amplifies weak cell signals to provide reliable voice and data coverage including 4G to inside spaces where signals may not penetrate. With new eXtended Dynamic Range (XDR) technology, the amplifier never shuts off due to a strong outside signal or changes in outside signals. Like all WilsonPro cellular signal amplifiers, the WilsonPro Pro 1050 features cellsite protections that auto-detect and prevent any cell tower interference.brbr The industry's first FCC and carrier approved in-line cellular amplifier system. Consists of main amplifier and in-line amplifier. In-line amplifier installed deep inside building and compensates for signal loss in long cable runs to inside antennas. XDR technology never shuts down due to overload, even with very strong outside cellular signals. Automatically compensates for signal loss in up to 300 ft of cable. Compatible with all US cellular networks. Up to +15 dBm downlink power at indoor antenna port, for maximum indoor coverage area.