Most radar errors are habits, not hardware faults: mistuned clutter controls, single-look decisions, and blind trust in a small screen. Here is how to read the picture properly.
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A practical pre-departure checklist for taking a small vessel through coastal fog with radar: tuning, range scales, plotting, guard zones and the human habits that keep the picture honest.
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Radar shows what is physically there; AIS tells you who is claiming to be there. Here is how to read both — and why coastal navigation needs the cross-check.
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