What does Memory Purge accomplish in radar operations?

• A. Clearing memory when capacity threshold is reached
• B. Deleting all stored track history
• C. Resetting the radar settings to defaults
• D. Archiving data to external storage

Answer: (A)

Memory Purge is about managing limited radar system memory so real-time operation isn’t disrupted. When memory usage hits a preset capacity threshold, the purge process clears out older or lower-priority data to reclaim space. This prevents new targets from being missed and keeps processing fast by freeing resources without touching every piece of stored history. It isn’t about resetting radar settings or removing all track history, nor is it about moving data to external storage for long-term archiving—the purge is a selective cleanup to keep the system responsive under memory pressure.