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 Nottingham BBC Radio Nottingham BBC Radio Nottingham is a BBC Local Radio station serving the English county of Nottinghamshire. It broadcasts on FM, DAB radio and Freeview from studios located on London Road in Nottingham city centre. Radio Nottingham is broadcast on three FM frequencies: The Mansfield signal is strong enough to be heard as far north as Scunthorpe, far outside Nottinghamshire. The Nottingham signal may be heard as far south as Leicester. Since 30 April 2004, the station has been available on DAB from the NDEM (NOW Digital East Midlands) Nottingham 12C multiplex from Waltham (main signal and in Leicestershire),