1) Comint 2) Elint 3) Telint 1) Intelligence 2) Intelligence activity 3) Intelligence operation 4) Signal intelligence 5) Signals intelligence 
[conference] The SIGINT conference was a three-day conference held yearly on the social and technical aspects of digital society. It was organized by the Chaos Computer Club and held in Cologne, Germany. The conference featured both lectures and workshops on various different topics. The conference was officially discontinued in January 201...
(signals intelligence satellites) Reconnaissance (spy) satellites that intercept communications, radar, and other forms of electromagnetic transmissions. ELINT (electronic intelligence) and COMINT (communications intelligence) satellites are sub-categories. Chronology of Ame...
Signals intelligence. The primary task of GCHQ.
Signal Intelligence
See signals intelligence.