Radio Caroline is a British radio station founded in 1964 by Ronan O'Rahilly to circumvent the record companies' control of popular music broadcasting in the United Kingdom and the BBC's radio broadcasting monopoly. Unlicensed by any government for most of its early life, it was a pirate radio station that never actually became illegal, although after the Marine Offences Act (1967) it became illegal for a British subject to associate with it. The Radio Caroline name was used to broadcast from international waters, using five different ships of three different owners, from 1964 to 1990, and via satellite from 1998 to 2013. Since 19 August 2000, Radio Caroline has also broadcast 24 hours a day via the internet and by the occasional restricted service licence. Currently they also broadcast on DAB radio in certain areas of the UK: these services are part of the Ofcom small-scale DAB+ trials. Caroline can be heard on DAB+ in Aldershot, Birmingham, Brighton, Glasgow, Norwich, London, Portsmouth and Woking. In May 2017 Ofcom awarded the station an AM community licence to broadcast to Suffolk and north Essex; full-time AM (medium wave) broadcasting, via a previously redundant BBC World Service transmitter mast at Orford Ness, commenced on 22 December 2017.Radio Caroline broadcasts music from the 1960s to contemporary, with an emphasis on album-oriented rock (AOR) and "new" music from "carefully selected albums". On 1 January 2016, a second channel was launched called Caroline Flashback, playing pop music from the late 1950s to the early 1980s.