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Radar is notoriously tricky to operate and 'read' correctly for collision avoidance either with the land or with other vessels. But used by an informed operator it is an immensely valuable navigation tool - especially in poor visibility. GPS will tell you where you are, but it won't tell you if there's another boat in that spot! Rather than taking a theoretical, academic approach, this book is highly practical and hands on - complementing the radar owner's manual and explaining what the operator really needs to know when faced with actual situations at sea. Packed with illustrative photos, charts and radar screen shots, this book gives guidance from a real life, on-the-water perspective, and will enable readers to solve problems on the spot.