Until recently, broadcasting in Europe has been seen by historians and broadcasters alike as intricately related to national territory. Starting immediately after the Second World War, when West German national territory was still uncertain, this article explores how the broadcasting space of the Federal Republic (FRG) shaped and was shaped by material, institutional, and discursive developments in European broadcasting spaces from the end of World War II until the early 1960s. In particular, it examines the border regimes defined by overlapping zones of circulation via broadcasting, including radio hardware, signals and cultural products such as music. It examines these spaces in part from the view of the European Broadcasting Union (EBU), the federation of (then) Western public service broadcasters in Europe. By reconstructing the history of broadcasting in the Federal Republic within the frame of attempts to regulate European broadcasting spaces, it aims to show how territorial spaces were transgressed, transformed, or reinforced by the emerging global conflict.