Abstract: A base frame (2) for use with a base station in mobile communication (aerial, operating cabinet) comprising a first and second cross arm (3, 4), frictionally connected or clamped, and adjustably connected by means of stays (11, 12, 13, 14) to a supporting surface (1), whereby the first and second cross arm are arranged at a distance from the supporting surface (1), a first and second longitudinal arm (3, 4) adjustably frictionally connected or clamped to the first and second cross arm (5, 6).