Antenna Distribution System expands wireless microphone systems by splitting one pair of antennas to allow up to four single channel receivers to use the same antennas. 3dBi gain compensates for any insertion loss and increases receive signal range (up to 275ft). Low-loss 50 ohm BNC connectors for mounting antenna. Includes rack ears for mounting rack space (1RU) Distributes the antenna for up to 4 Wireless Microphone Systems (PSE, TRC, DHT Series). BNC connectors, single rack space, does not combine power.