The Rejimen Semboyan Diraja (Royal Malaysian Signals Regiment) is a combat support regiment of the Malaysian Army. It has the primary responsibility of establishing and maintaining secure military communications channels for the command and tactical elements of the Malaysian Army. It is also responsible for all electronic support, electronic warfare and early warning system for the Malaysian Army.
The Royal Signals Regiment has its roots with the formation of a “Communications Troop” at the Training Depot of the Malay Regiment in Port Dickson in 1949. The Communications Troop was formed by centralising the radiomen of the signals Platoon of 1st, 2nd and 3rd Battalions of Royal Malay Regiment (Rejimen Askar Melayu).
With the expansion of size and roles given and undertaken by the Communications Troop, the unit was renamed the Federation Signals Squadron. The squadron was tasked with the responsibility of meeting all communications requirements of all operational units of the Malay Regiment.