Handel (warning system)
Handel was the code-name for the United Kingdom's national attack warning system in the Cold War that was in place between 1962 and 1992. It consisted of two injection sites (RAF High Wycombe and the Royal Observer Corps Group 21 bunker in Goosnargh, Lancashire) linked to a series of two hundred and fifty-two carrier control points installed in major police stations; in turn, the control points were linked to several thousand receiver units installed at "warning points" in various police, fire, and coastguard stations, government buildings, hospitals, industrial centres, and Royal Observer Corps posts, with sufficiently remote areas having the units installed in post offices, public houses, churches, or even private dwellings.