Abstract: The invention relates to a flat pack or housing for a radio apparatus having a rectangular cross-section comprising an opening at the front side and an opening at the back side which are respectively closable with a cover and also relates to a support mount for the radio apparatus. Such a radio apparatus provides the user with the possibility of versatile use at various use locations and is securable in a receptacle. To this end, the housing is divided into two tub-shaped main chambers by a bottom plate oriented parallel to the plane of the openings. The individual assemblies of the radio apparatus are disposed RF-shielded in the main chambers and the main chambers being closed by the covers by means of a central screw. Outside guide rails for acceptance into the support mount are disposed at opposite lateral faces of the housing. The support mount is composed of a sheet metal panel bent at three sides.