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 Sound Archive BBC Sound Archive The BBC Sound Archive is a collection of audio recordings maintained by the BBC and founded in 1936. Its recordings date back to the late 19th century and include many rare items, including contemporary speeches by public and political figures, folk music, British dialects and sound effects. The BBC began broadcasting in 1922 but nothing was recorded until ten years later. At that time, only one recording machine, a Blattnerphone, was available, so few programmes were recorded. By 1936 a number of gramophone recordings had been made, and a temporary secretary, Marie Slocombe was given the task