Abstract: A coaxial coupling member is integrally connected to a wall plate detachably connected to a wall bracket in turn connected to the room wall across an opening in the wall. The bracket connection to the wall and the wall plate is along the axial center while the center of the bracket is displaced from the center by being arcuate. The coupling member may have a conductor sleeve through the center and external threads for both ends for connection to a coupling nut on radio and antenna cables or the antenna end of the coupling member may be permanently connected to the antenna cable by the conductor of the cable being soldered to the conductor sleeve and the braid on the cable being connected to the coupling member by a terminal having an eye on the antenna end of the coupling member and the braid being received in a sleeve lug on the terminal.