This duplexer was removed from an active site that was being decommissioned. No damage but unable to test . Please see all pictures for condition. If there are any basic questions you might have please let us know.

EN Series Antenna Duplexers consist of a group of cavity resonators connected and tuned together to allow both a transmitter and a receiver to share a common antenna allowing bi-directional (duplex) communication over a single économies channel. These units feature compact, high Q cavities, requiring less rack space than standard 4 inch cavities. The cavities are arranged in an order which provides enough isolation to keep the transmitter from interfering with the receiver.