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 Foyle Radio nan Gàidheal in Scotland and by BBC Radio Cymru in Wales). It was not initially available on DAB digital radio, however; the Northern Ireland multiplex licence only requires carriage of Radio Ulster. In June 2010, the BBC announced a trial scheme under which Radio Foyle would be available on DAB as a part-time sidecar station to Radio Ulster, using a similar format as the part-time longwave-programming optouts of BBC Radio 4 on the BBC National DAB multiplex. During this trial, the bitrate of Radio Ulster would drop during Foyle's separate broadcast hours, with Foyle carried as a split audio