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In December, U.S. Army signals intelligence aircraft, using direction finding techniques, located a Viet Cong radio tr

...denied areas such as the Soviet Union. It was subsequently provided with signals intelligence and [[measurement and signature intelligence]] capabilities, and is now ope ...1945 to 1989#Early days: American and Operational Perspective|declassified signals intelligence]] about that incident.

Other classical intelligence disciplines, such as imagery intelligence and signals intelligence, with the latter divided into subdisciplines COMINT for firing orders, and

...ing and construction of Iranian bases, but also the construction of Soviet signals intelligence (SIGINT) bases (see #Command, control, communications and intelligence (C3I

...munity , it has the principal responsibility for collecting and processing signals intelligence. ...onal Security Agency]] is a career civilian. Two senior officials are the Signals Intelligence Director (SID) and the Information Assurance Director (IAD). There are usua

The first real warnings came from NSA, not CIA. Signals intelligence indicated an increased level of military activity in Cuba in 1960 and 1961.

Also in May, the first U.S. signals intelligence unit, from the Army Security Agency under National Security Agency control, }}</ref> See Signals intelligence from 1954 to 1979#First-generation Army tactical SIGINT aircraft|first-gene

| title = Chapter 9: Measurement and Signals Intelligence ...d intelligence (excluding traditional [[imagery intelligence]] (IMINT) and signals intelligence (SIGINT) that – when collected, processed, and analyzed by dedicated MASI

...raft-based|aircraft, Signals intelligence collection, ship-based|ships and Signals intelligence collection, submarine-based|submarines in international space.

...of an intelligence unit. While the South Vietnamese were taught some basic signals intelligence techniques, the more sensitive collection and analysis techniques were not

...nst North Vietnam. Independent of MACV-SOG, the U.S. Navy began to conduct signals intelligence patrols for the [[National Security Agency]], close to North Vietnam but in ...merican soldier to die in combat was not with ARVN infantry, but part of a signals intelligence team, doing direction finding on Viet Cong radio transmitters in the field,

...s were also involved." He claims the [[United States Navy]] assisted with signals intelligence as the coup played out and helped by jamming communications for the Venezue

...ts as [[maritime patrol aircraft|maritime patrol/antisubmarine warfare]], signals intelligence and maritime strike surveillance. In U.S. service, these missions went to t

...also had the benefit of national-level intelligence information, including signals intelligence from German fleet headquarters to submarine radio, including direction find

...surveillance. While few details were available, much credit was given to a signals intelligence operation led by LT Jen Koch Easterly. <ref>Ricks, ''The Gamble'', pp. 191-

...communications intelligence aircraft, confirmed by U.S. Special Operations signals intelligence on the ground and hit by U.S. aircraft. Osmani, and a subordinate Taliban c

...hifted to reliance on [[satellite]]s for [[imagery intelligence]] and some signals intelligence, as well as [[unmanned aerial vehicle]]s (UAV). Some UAVs are long-enduranc

...and airlift. The first American soldier to die in combat in Vietnam was a signals intelligence technician on a direction-finding mission, caught in an ambush.