Stanbridge (2SU IIRC) gave up its role as a major comms centre in the late '70s/early 80s. It was then extensively (and expensively) redeveloped to provide a home for the Joint Services Air Trooping Centre and the RAF Supply Control Centre (RAFSCC), both units being transferred from RAF Hendon, which closed officially on 1 Apr 87.
The JSATC was closed/disbanded/moved/renamed in the 90s and the site was contracted into a small enclave of just the former SHQ and the RAFSCC building in about 1999. Further changes took place and the site is no longer required.
Of interest is that the RAFSCC - and whatever else it was called over the years - was the first major computer system operated by the RAF in the 'data processing' era - then called ADP : automatic data processing. This went live in January 1966 and controlled supplies for the RAF and many others. A major update to an 'online' realtime system kicked off in 1975 and has been giving exceptional service ever since. If you are still awake and want to read more, look on the RAF Museum website at the RAF Historical Society journals and their one day seminar in late 2004 covered it all and much else!!
The RAF Supply ADP System and the mobile version it spawned, has been a major success story in an area in which so many other systems have gone belly-up or cost squillions more than the budget said: well done RAF!!
Old Duffer