Greenwich Time Signal 19:00. By 19:45 the same day the power supply was repaired and the 20:00 pips were broadcast as normal. Many radio broadcasters around the world use the Greenwich Time Signal as a means to mark the start of the hour. The pips are used in both domestic and international commercial and public broadcasting. Many radio stations use six tones similar to those used by the BBC World Service; some shorten it to five, four, or three tones. Greenwich Time Signal The Greenwich Time Signal (GTS), popularly known as the pips, is a series of six short tones broadcast at one-second
BBC Radio Wales BBC Radio Wales BBC Radio Wales is BBC Cymru Wales's national English language radio station. The station began broadcasting on 13 November 1978, following the demise of the 'Radio 4 Wales' service (previously the Welsh Home Service) and BBC Radio 4's transformation into a national network, moving from medium wave to long wave. The station's editor is Colin Paterson. In November 1978, BBC Radio Scotland and BBC Radio Wales were created as distinct stations on the former Radio 4 Scottish and Welsh medium wave opt-out frequencies of 810 and 882 kHz. They were part-time initially, broadcasting for only 20 hours