Tactical Signals Unit was first formed in 1962 under the name 38 Group Support Unit. After emphasis was placed on the importance of communications, it was renamed Tactical Signals Unit in 1965. In 1969, it was given its current name Tactical Communications Wing.
The role of Tactical Signals Unit was to maintain tactical communications in support of RAF Squadrons deployed worldwide.
The unit provided important communications in conflicts such as the Gulf War and Operation Telic.