During the Cold War, the British government proposed a communications network that (it was hoped) would survive a nuclear attack. Radio stations (including the Heaton Park Tower) would maintain national and international communications before, during and after a nuclear emergency, transmitting microwave radio signals in a network known as Backbone. Spurs feeding into the network were provided at three locations: London, Manchester (Heaton Park Tower) and Birmingham.[1] Whether or not the Backbone network plan was realised is classified, but HM Government denied in Parliament that the tower's function was secretive.[2][3]
Beside the tower was a monitoring station (one of hundreds across the country) to record the blast and fallout in the event of a nuclear war. The station provided for three men from the Royal Observer Corps (ROC) to live underground whilst recording what was happening above ground in the event of a nuclear strike.[4]