What is the purpose of the inner guard ring on the ARPA guard wire?

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Multiple Choice

What is the purpose of the inner guard ring on the ARPA guard wire?

Guard rings are proximity thresholds around your vessel that ARPA uses to cue alarms and tracking. The inner guard ring is the closer, smaller threshold and is meant to warn you about targets that are detected at very short range and may be small or weak returns. When such targets are initially seen inside the inner ring, you get an early alert so you can assess risk and potentially maneuver before they reach the outer ring or pose a closer threat. This isn’t about filtering clutter or providing range measurements—the rings simply provide prioritized alerts for near, potentially hazardous targets.

Guard rings are proximity thresholds around your vessel that ARPA uses to cue alarms and tracking. The inner guard ring is the closer, smaller threshold and is meant to warn you about targets that are detected at very short range and may be small or weak returns. When such targets are initially seen inside the inner ring, you get an early alert so you can assess risk and potentially maneuver before they reach the outer ring or pose a closer threat. This isn’t about filtering clutter or providing range measurements—the rings simply provide prioritized alerts for near, potentially hazardous targets.

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