Signals Command was formed on 3 November 1958 by raising 90 Group to Command status.[3]
Three De Havilland Comet 2s were modified for RAF use in radar and electronic systems development, initially assigned to No. 90 Group (later Signals Command).[4] In service with No. 192 and No. 51 Squadrons, the 2R series was equipped to monitor Warsaw Pact signal traffic and operated in this role from 1958.[5] The 2R ELINT series was operational until 1974, when replaced by the Nimrod R1, the last Comet derivative in RAF service.[5]
Signals Command was relatively short-lived, lasting only until 1 January 1969, when it was absorbed by Strike Command by being reduced to group status.[3] It had five Air Officers Commanding during its existence.
In 2006, various elements of the RAF Signals trades and sections were combined at RAF Leeming to form No. 90 Signals Unit with the same badge and motto as No. 90 (Signals) Group and Signals Command.[6]