What is the purpose of target list management in ARPA?

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Target list management in ARPA is about organizing what the radar system actively tracks so you have a clear picture of multiple moving targets and can act quickly and safely. It keeps a structured list of active tracks, including position, speed, course, predicted positions, and track quality, so you can monitor and compare many targets at once. It also prioritizes threats by evaluating factors like time to CPA, closest point of approach, range, and closing speed, helping you focus on the most relevant risks. Clutter filtering is part of it too—the system suppresses or deletes unreliable or fleeting echoes and manages track associations so false targets don’t clutter the display. Finally, it manages display resources by controlling how many tracks are shown, their update rate, and how they’re visualized, ensuring the operator isn’t overwhelmed with information. The other options aren’t related to tracking and threat assessment: calibrating radar range scales, engine control, or logging maintenance events serve different functions.