The SYMAIR RRU twin diplexer combines and separates 380–2170 MHz and 2300–2700 MHz signals across two parallel RF paths. Its double-unit, 4-input and 2-output configuration allows low- and high-band radio signals to share feeder infrastructure while maintaining low insertion loss and high isolation. With DC bypass on the high-band ports, 200 W power handling per port, rugged 7/16 DIN female connectors and an IP67-rated enclosure, it is designed for outdoor RRU, base station and cellular network installations.