RADIO MIC RF DISTRUBITION AMPLIFIER. We have two of these available. The TOA Wireless Antenna Distributor WD-4800 is designed to be used in conjunction with VHF/UHF band system. It comes with two channels, in which two input signals are mixed and distributed to four outputs. The WD-4800 also has four DC power distribution outputs. Rack mountable antenna distribution unit, compatible with VHF & UHF frequencies. Dipole ratio relative gain: >6dB. Dual, A/B antenna inputs / 4x A/B antenna outputs. 9VDC Phantom powering for antenna. Antenna in/output Impedance: 75R. 4x 13VDC power outputs for receivers. Optional 19 rack-mount kit (MB-15B).