Set up by eager but wholly inexperienced young music fans, Prague’s Radio 1 was the first non-state station in Czechoslovakia after the fall of communism. Decades later, the story of the station – which is still going strong – is the subject of a colourful new book, Radio 1: Life in the Ether, by Jana Kománková, one of its longest serving DJs. We spoke on the eve of its publication.