ELINT stands for ELectronic INTelligence, and refers to intelligence-gathering by use of electronic sensors. Intelligence Gathering Disciplines HUMINT - Human Intelligence - gathered from a person on the ground IMINT - Imagery Intelligence - gathered from satellite and aerial photography MASINT - Measurement and Signature Intelligence ACOUSTINT - Acoustic Intelligence - gathered from acoustical sources CBINT - Chemical and Biological Intelligence - gathered from chemical and biological weapons and hazards DEWINT - Directed Energy...

The data gathered is typically pertinent to a rival's defense network, especially the electronic parts such as radars, SAM systems, aircraft, etc. It can be performed from ground stations near the opponent's territory, ships off their coast and aircraft near or in their airspace. The USA is believed to be the premier ELINT expert. They are known to gather data on countries such as Russia (ex-USSR) and China. This has lead to several embarrassing incidents with aircraft or ships straying into hostile waters or airspace and one particularly bad incident where a Chinese MiG fighter collided with a U.S. "spy plane" (accidentally or on purpose) and forced it down into China. This long range radar antenna (approximately 40m (130ft) in diameter) rotates on a track to observe activities near the horizon. ... A surface-to-air missile (SAM) is a missile designed to be launched from the ground to destroy aircraft. ... The word Mig could mean: Mikoyan-Gurevich or MiG, a Russian military aircraft manufacturer Metal inert gas welding (MIG welding) Mig Greengard, an online chess columnist (Mig on Chess) This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...

The primary goal of ELINT is to acquire data which would be invaluable in the event of a conflict. Knowing where each SAM and AAA system is and its type means that air raids can be plotted to avoid the most heavily defended areas and to fly on a flight profile which will give the aircraft the best chance of evading ground fire and fighter patrols. It also allows for the jamming or spoofing of the enemy's defence network (see electronic warfare). The name Sam is usually short for the male given name Samuel, or the female given name Samantha. Samuel comes from a hebrew word which means name of God or heard by God. Other variations of the name include Samuelson, Samson, and Samwise. ... American troops man an anti-aircraft gun near the Algerian coastline in 1943 Anti-aircraft, or air defense, is any method of combating military aircraft from the ground. ... Jamming is an electronic warfare (EW) technique to limit the effectiveness of an opponents communications and/or detection equipment. ... Electronic warfare (EW) includes, but is not limited to, the following: Electronic countermeasures (ECM) This is the active use of the electromagnetic spectrum to deny its use by an adversary. ...

ELINT can also acquire data about where the ships, command and control centers, surface-to-air missile systems and other assets of the enemy are so they can be struck in the event of a war. Good electronic intelligence can be very important to stealth operations; stealth aircraft are not totally undetectable and need to know which areas to avoid. For more information, see Stealth. Similarly, conventional aircraft need to know where fixed or semi-mobile air defence systems are so that they can shut them down or fly around them. For online phenomenon of shipping, see Shipping (fandom). ... In telecommunication, command and control (C 2 ) is the exercise of authority and direction by a properly designated commander over assigned and attached forces in the accomplishment of the mission. ... A surface-to-air missile (SAM) is a missile designed to be launched from the ground to destroy aircraft. ... F-117 Stealth Fighter Stealth technology covers a range of techniques used with aircraft, ships and missiles, in order to make them less visible (ideally invisible) to radar and other detection methods. ... American troops man an anti-aircraft gun near the Algerian coastline in 1943 Anti-aircraft, or air defense, is any method of combating military aircraft from the ground. ...

Combining other sources of information and ELINT allows traffic analysis to be performed on electronic emissions which contain human encoded messages. The method of analysis differs from SIGINT in that any human encoded message which is in the electronic transmission is not analysed during ELINT. What is of interest is the type of electronic transmission and its location. For example during The Battle of the Atlantic in World War II, Ultra SIGINT was not always available because Bletchley Park was not always able to read the U-Boat Enigma traffic. But "High Frequency Direction Finders" Huff-Duff was still able to find where the U-Boats were by analysis of radio transmissions and the positions through triangulation from the direction located by two or more Huff-Duff systems. The Admiralty was able to use this information to plot courses which took convoys away from high concentrations of U-Boats. Traffic analysis is the process of intercepting and examining messages in order to deduce information from patterns in communication. ... SIGINT stands for SIGnals INTelligence, which is intelligence-gathering by interception of signals, whether by radio interception or other means. ... The Second Battle of the Atlantic was the longest continuous military campaign of World War II, running from 1939 right through to the defeat of Nazi Germany in 1945, and was at its height from mid-1940 through to about the end of 1943. ... Mushroom cloud from the nuclear explosion over Nagasaki rising 18 km into the air. ... This article is about WWII intelligence material codenamed Ultra. For other usages, see Ultra (disambiguation) Ultra (sometimes capitalised ULTRA) was the name used by the British for intelligence resulting from decrypts of German communications in World War II (WWII); the term eventually became the common standard terminology for Britain and... During World War II, British cryptographers at Bletchley Park broke a large number of Axis codes and ciphers, including the German Enigma machine. ... In the history of cryptography, the Enigma was a portable cipher machine used to encrypt and decrypt secret messages. ... High Frequency Direction Finder is usually known by its acronym HF/DF pronounced Huff-Duff which has become the common name for this type of equipment, and was coined during World War II Huff Duff is part of the armoury of the analysis of radio transmissions and is known as... U-boat is also a nickname for some diesel locomotives built by GE; see List of GE locomotives October 1939. ... Old Admiralty House, Whitehall, London, Thomas Ripley, architect, 1723-26, was not admired by his contemporaries and earned him some scathing couplets from Alexander Pope The Admiralty was historically the authority in the United Kingdom responsible for the command of the Royal Navy. ...