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Early tactical stations were in use as early as World War I, but permanent strategic signals intelligence stations were established as world tensions grew before WWII. Arguably, one combined intercept and jamming technique of WWI was the use of shotguns against carrier pigeons, followed by reading the message attached to the bird.
Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of signals, ... together with the post office and Marconi stations, ...
Hungary's signals intelligence agency is called "Nemzetbiztonsági Szakszolgálat" (National Security Special Service). It is under the control of the Minister for the Interior and provides signals intelligence services to the police, the national intelligence service, the counter-intelligence service, the military national security service and ...
Pine Gap is a joint Australian-United States satellite communications and signals intelligence surveillance base and Australian Earth station approximately 18 km (11 mi) south-west of the town of Alice Springs.
France had significant signals intelligence in World War I. Commandant Cartier developed a system of wireless masts, including one on the Eiffel Tower to intercept German communications. The first such station was built as early as 1908, although was destroyed by flooding a few years afterward.
The "Y" service was a network of British signals intelligence collection sites, the Y-stations. The service was established during the First World War and used again during the Second World War. [1] The sites were operated by a range of agencies including the Army, Navy and RAF, and the Foreign Office (MI6 and MI5).
The United States Army Security Agency (ASA) was the United States Army's signals intelligence branch from 1945 to 1977. [1] The Latin motto of the Army Security Agency was Semper Vigilis (Vigilant Always), which echoes the declaration, often mistakenly attributed to Thomas Jefferson, that "The price of liberty is eternal vigilance." [2] [3]
Formerly the 116th Military Intelligence Group, it is located at Fort Eisenhower, Georgia. It provides personnel, intelligence assets and technical support to conduct signals intelligence operations within the National Security Agency/Central Security Service Georgia (NSA/CSS Georgia) and worldwide. [6] 780th Military Intelligence Brigade