Which type of intelligence is characterized by monitoring and interpreting signals?

Signals Intelligence (SIGINT) is indeed characterized by the monitoring and interpretation of signals. It encompasses the collection and analysis of electronic communications, which can include voice conversations, data transmissions, and other electronic signals. This type of intelligence is crucial for understanding adversaries' communications and intentions, as it provides insights into their operational capabilities, strategies, and potential plans.

The primary focus of SIGINT is on intercepting and decoding signals that come from various sources, such as radios, satellites, and other communication devices. Analysts in this field work to gather relevant information from these communications and turn it into actionable intelligence for military and national security purposes.

While other types of intelligence may involve monitoring certain forms of data or signals, they do not specifically center around the interpretation of electronic communications in the same way as SIGINT. For example, Geospatial Intelligence (GEOINT) pertains primarily to imagery and geographic information, while Measurement and Signature Intelligence (MASINT) involves the detection of physical phenomena and signatures from various sources. Technical Intelligence (TECHINT) focuses on a broader spectrum of engineering and technical information related to weapons and military systems. Therefore, the unique aspect of SIGINT lies in its direct relationship with electronic signal monitoring and interpretation.