Shipping Forecast [work-in-progress] explores the complex relations between territory and transmission in BBC Radio 4’s shipping bulletin. Coordinated recordings following the long-wave journeying of a signal from inside a studio at Broadcasting House; to the transmitter at Droitwich; to a shipat sea; to a transistor radio several hundred kilometres away; reveal audible aspects of broadcasting. The piece examines attractions between language, geography, radiation and precipitation where transduced speech addresses, defines as well as physically occupies dimensions of terrestrial space.