continued as both a communications hub and home of various administrative units. No.1 Signals Unit was established to manage all UK terrestrial communications infrastructure for the RAF. With the launch of the UK Satellite Communications System, Skynet, in the late 1960s, the site of Controller Defence Communications Network (CDCN) was established. A spacecraft operations centre was established by 1001 Signals Unit, the spacecraft operations organisation, on a small enclave within the site, known as Hawthorn. The headquarters of the RAF Provost and Security Service (P&SS) was established nearby, although on the closure of the station it moved to RAF Henlow. RAF Rudloe Manor was the location of Headquarters Southern Area Royal Observer Corps (ROC) from 1952 until 1980, when it was relocated to Lansdown near Bath. Co-located with the ROC was Headquarters Southern Sector United Kingdom Warning and Monitoring Organisation, responsible for the now-defunct four-minute warning in the event of nuclear attack during the Cold War. The manor house, built in the late 17th century, was designated as Grade II* listed in 1985. The site was adjacent to Basil Hill Barracks, the Headquarters of No. 2 Signal Brigade, HMS Royal Arthur and the Royal Naval Stores Depot (RNSD) Copenacre. The RAF station was closed in 2000, with the Defence Communication Services Agency (DCSA) taking responsibility for the sites, subsequently reorganising into the Information Systems & Services cluster in 2008, and Defence Digital in 2019. See also Corsham Computer Centre MoD Corsham References Specific General Further reading Good, Timothy "Above Top Secret: The Worldwide UFO Cover-up", William Morrow Books, Campbell, Duncan "War Plan UK", External links Rudloe Manor Location (Google maps) RAF Rudloe Manor (site 1) photos taken in May 2009 Rudloe Manor Battle of Britain Corsham