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Navigation & chartwork

What is the risk of excessive sea clutter suppression?

Short answer

Small close targets may disappear with wave returns

Sea-clutter controls cannot perfectly separate waves from small close hazards; use the least suppressive setting and protect a reference echo. Revisit Diagnose Sea Clutter.

Sources and scope

Reviewed by Richard Moore on . This answer is scoped to international collision-avoidance and small-craft radar practice; check the current chart, publication, local rules and official operational guidance before acting afloat.

Quick check

What is the risk of excessive sea clutter suppression?