HMGCC used to have a communications centre at Signal Hill near Gawcott, in Buckinghamshire. Stephen Ball was Chief Executive until 2000, when Dr John Widdowson took over; Widdowson moved to GCHQ in 2005.
Previously, HMGCC had a communication center at Signal Hill near Gawcott, Buckinghamshire. Stephen Ball was the Chief Executive until 2000, and then Dr John Widdowson took over; Widdowson transferred to GCHQ in 2005.