Technical Features: *Receiving and sending separation,low require for Ant isolation,making it convenient for installation. *Mini design with metal cavity filter technology inside. *Full-duplex&dual-port design,and built-in power supply,making it convenient for installation. *Allowing for continuous gain adjustment 31dB by 1dB step. *ALC technology used to provide auto amplitude fixing. *Modules structures,making it convenient for installation,debugging and maintenance.