What is the purpose of the AN/TPX-56 interrogator?

The AN/TPX-56 interrogator is specifically designed to identify and provide information about the aircraft that have been detected by air defense systems like the Sentinel. Its primary function revolves around sending interrogation signals to transponders on aircraft, allowing it to receive replies that include identification data. This process is crucial in air defense operations, as it helps operators distinguish between friendly, neutral, and hostile aircraft, enhancing situational awareness and effective response strategies.

Monitoring weather conditions, changing frequency settings, or calculating flight paths are functions that do not align with the capabilities or purpose of the AN/TPX-56 interrogator. Those tasks are typically handled by other specialized systems and tools within an air defense network. The interrogator's focus remains firmly on identifying and tracking aircraft to support defense operations, which underscores the importance of its role in maintaining air superiority and safety within a given operational area.