Audio-Technica ATW-DA49 UHF Antenna Distribution System The atw-da49 is a UHF (Wide-band 440-900 MHz) Active unity-gain diversity antenna distribution System that enables one pair of Antennas to feed multiple wireless Systems. Provides two 1-in, 4-out RF channels; connects a pair of Antennas to as many as four wireless receivers. Either passive or active Antennas may be used. Both input jacks offer switchable +12V DC output on their center pins to operate Audio-Technica powered Antennas or other in-line RF devices If desired. The unit features All-metal construction for extreme durability and protection from Radio frequency interference. The atw-da49 is designed to complement Audio-Technica 2000 and 3000 Series wireless Systems. It is also suitable for many other wireless Systems operating within the 440-900 MHz range. Includes ten RF cables, Front-mount antenna cables and connectors, four DC power cables, +12V DC desktop power supply with detachable iec power cable, and atw-rm1 Rack-Mount hardware kit to permit attachment in a standard 19 rack space