What is true of the history display of past positions on an ARPA?

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Multiple Choice

What is true of the history display of past positions on an ARPA?

The history display is a trail of past positions that the ARPA has recorded for a target. This history lets you quickly see how a vessel has moved over time, so you can tell if it’s maintaining course, turning, or accelerating. By comparing the current position with the recent track, you can spot course changes early, which is essential for safe navigation and collision avoidance. The history is a functional feature, not decorative, and it remains until you reset or clear it. When you reset, the trail is cleared and future history starts from that moment, rather than preserving old positions indefinitely.

The history display is a trail of past positions that the ARPA has recorded for a target. This history lets you quickly see how a vessel has moved over time, so you can tell if it’s maintaining course, turning, or accelerating. By comparing the current position with the recent track, you can spot course changes early, which is essential for safe navigation and collision avoidance. The history is a functional feature, not decorative, and it remains until you reset or clear it. When you reset, the trail is cleared and future history starts from that moment, rather than preserving old positions indefinitely.

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