What is the purpose of the outer guard zone?

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Multiple Choice

What is the purpose of the outer guard zone?

The outer guard zone is all about early warning. It’s a larger protective area around your vessel, and when a target enters this zone the radar/ARPA system alerts you so you can start assessing risk and planning avoidance well before the situation becomes critical. This gives you time to monitor the target’s turn, speed, and bearing changes and decide on the best action. This differs from the inner guard zone, which is for immediate action warnings when a target is very close. It also isn’t about eliminating false echoes (that’s handled by radar processing and filtering) or about manually selecting targets (that’s a separate control function).

The outer guard zone is all about early warning. It’s a larger protective area around your vessel, and when a target enters this zone the radar/ARPA system alerts you so you can start assessing risk and planning avoidance well before the situation becomes critical. This gives you time to monitor the target’s turn, speed, and bearing changes and decide on the best action.

This differs from the inner guard zone, which is for immediate action warnings when a target is very close. It also isn’t about eliminating false echoes (that’s handled by radar processing and filtering) or about manually selecting targets (that’s a separate control function).

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