Interfaces between df antenna and signal distribution unit, providing system preamplification, band subdivision, test input ports and modulated white noise test generator; five rf input5 0.25 ghz to 2 ghz, 2 ghz to 4 ghz, 4 ghz to 8 ghz, 8 ghz to 12 ghz, and 12 ghz to 18 ghz; video to 2 ghz, 3 khz to 30 mhz, and video to 4 ghz, 3 khz t0 30 mhz; 5 rf test inputs same freqs as rf inputs; 2 video outputs 3 khz to 50 mhz; seven rf outputs 0.25 ghz to 0.5 ghz, 0.5 ghz to 1.0 ghz, 1.0 ghz to 2.0 ghz, 2.0 ghz to 4.0 ghz, 4.0 ghz to 8.0 ghz, 8.0 ghz to 12.0 ghz, and 12.0 ghz to 18.0 ghz; all inputs and outputs are 50 ohms impedance; oper pwr rqmts 115 vac, 60 hz, three ph; o/a dims 23.6 in. Lg; 24.3 in. W; 7.3 in. H; bulkhead mounted
