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 Cambridgeshire main Peterborough mast, one mile west of Morborne, and the heat caused the whole mast to collapse. A shorter BT Group plc tower with microwave transmission dishes next to it was undamaged. The 95.7FM signal was put out of action for a few weeks. Peterborough has FM BBC national radio, BBC National DAB, Classic FM and Digital One. The Madingley transmitter also carries national FM BBC radio, Digital One, BBC National DAB, Heart Cambridgeshire and Kiss 105-108 on 105.6 FM as well as the NOW Cambridge DAB multiplex. Chesterton Fen also has Virgin Radio on 1197MW. The DAB signals come