Provides for acceptance of radio frequency signals from many sources, and then switches, amplifies, and divides these signals for output to several radio receivers; controlled by a receiver control unit through a universal asynchronous receiver transmitter interface; 5 khz to 500 mhz range; 7 inputs and 80 outputs; oper pwr rqmts 115 vac, 60 hz, single ph; o/a dims 19.0 in.Lg; 16.0 in. W; 8.0 in. H; rack mounted