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Radar revision module 4 of 9

TGT

Targets, Reflectors, and Discrimination

Target strength, target definition, reflectors, shadows, and separating close echoes.

target definitionradar reflectors

4 guided lessons · 8 practice questions · 8 flashcards

3 outcomes · self-guided revision
  • Explain target strength, target definition, reflectors, shadows, and separating close echoes.
  • Apply target definition to a realistic onboard situation.
  • Recall the core check: high, hard, angular targets usually return more energy.

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Lesson 1 of 1

Target Strength

Target strength depends on size, shape, material, height, aspect, range, sea state, rain, and radar settings. A steel ship is usually easier to detect than a low small craft, but no single rule is guaranteed.

A target can appear, fade, split, merge, or hide in clutter. Radar interpretation is about probability and cross-checking, not certainty from one sweep.

  • High, hard, angular targets usually return more energy.
  • Low, rounded, wet, or poorly reflecting targets can be weak.
  • Aspect changes can alter echo strength.
  • Clutter and settings affect target visibility.
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