Greenwich Time Signal Greenwich Time Signal The Greenwich Time Signal (GTS), popularly known as the pips, is a series of six short tones broadcast at one-second intervals by many BBC Radio stations. The pips were introduced in 1924 and have been generated by the BBC since 1990 to mark the precise start of each hour. Their utility in calibration is diminishing as digital broadcasting entails time lags. There are six pips (short beeps) in total, which occur on each of the 5 seconds leading up to the hour and on the hour itself. Each pip is a 1 kHz tone (about halfway between
BBC Radio in the BBC Charter), non-profit, and commercial-free. The English language service had always had a UK listenership on LW and therefore DAB Services allowed, by this popular demand, it to be now available 24/7 for this audience in better quality reception. Slogan = "The BBC's international radio station" BBC Radio services are broadcast on various FM and AM frequencies, DAB digital radio and live streaming on BBC Online, which is available worldwide. They are also available on Digital Television sets in the UK, and archived programs are available for 7 days after broadcast on the BBC website; many shows are