CCI’s Double Duplexer combines Tx and Rx paths onto a common feeder. The Tx filter provides a low insertion loss, high power handling path, with high rejection of the receive band. The Rx filter passes the full receive band and provides significant rejection to a broad spectrum, with a minimum of 90 dB in the Tx Passband. The Tx filter is a high Q design optimized for low insertion loss with high power handling. The duplexer is designed to be expandable. A second unit can be installed adjacent to the first unit, saving rack space for a total of four (4) duplexers in a 1U high space. The above photo shows the standard unit “without” the optional second unit. DC ports allow for Bias of TMA’s. Note: “Old” Duplexer units do not have DC-Pass-Through.