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.