The 7th Signal Regiment is an Australian Army signals intelligence unit. Drawing lineage from the Australian Special Wireless Group, which was raised during World War II, the regiment's history includ
Troops of the Australian Special Wireless Group marching through their camp at Kalinga, Queensland, in July 1945.
Before the development of radar and other electronics techniques, signals intelligence and communications intelligence were essentially synonymous. Sir Francis Walsingham ran a postal interception bur
7th Signal Regiment (Australia)
…Operations Support Squadron Signals intelligence in modern history#Australian Army Blaxland, John (2005). "The Role of Signals Intelligence in Australian Military Operations, 1939–72" (PDF). Australian Army Journal. II (2). Canberra…
HMS Diana carried out one of the first signals interceptions in 1904, when it picked up the order for the mobilization of the Russian fleet at the beginning of the Russo-Japanese War.
The Admiralty Ripley building. Room 40 succeeded in intercepting and decrypting German naval signals.
SMS Magdeburg ran aground off Odensholm and provided Room 40 with the German SKM codebook.
Captain H.J. Round devised and oversaw the construction of an array of direction finding stations that were able to track the movements of enemy ships.