CCI’s Twin Outdoor Diplexer combines a modified “700” band (703-788 MHz) with a modified "800-900" band (791-960 MHz) base stations onto a common feeder line. Specifically intended for use in dual band systems, the diplexer reduces the number of required feeder lines while providing a high degree of isolation between systems. By reducing the number of feeder lines, the cost to upgrade a site is reduced. Additionally, diplexers can be utilized in “crowded” sites where feeder lines are not easily accessible. Optional Dual unit with two Diplexers mounted on a single bracket is available.

The CCI Outdoor Diplexer provides full band performance in each band with low insertion loss, low Intermodulation, high isolation and high power handling. Excellent return loss and low insertion loss delivers an excellent match to antennas and base station, saving precious transmitter power. The fully weatherproof tower mount Diplexer can optionally provide DC and AISG signal pass-through on either of the band specific ports, enabling power and control for TMA's and RET antennas. The Diplexer is available with DC/AISG pass using Smart DC with autosense. The Smart Bias-Tee architecture passes the DC and AISG carrier frequency from any of the input ports to the common port while blocking the DC and AISG signals from being re-injected into the other input ports. The Diplexer housing is constructed from die cast aluminum and consists of an IP67 enclosure, with IP67 connectors suited to long-life masthead mounting. With a variety of mounting options, the Diplexer can be adapted for use in all outdoor or indoor conditions.