What does a Plan-Position Indicator (PPI) display show?

What does a Plan-Position Indicator (PPI) display show?

• A. Displays targets on a map-like presentation
• B. Provides azimuth line markers without targets
• C. Shows only the range scale in numeric form
• D. Displays target movement speed only

Answer: (A)

A Plan-Position Indicator gives you a two-dimensional, map-like radar view. The own ship is at the center, with azimuth lines and concentric range rings, and targets appear as blips plotted in their relative positions. This lets you see where each target is in direction and distance at a glance and to track how those positions change over time. It’s not just markers or a numeric range or speed readout—it’s a spatial, plan-view presentation of all detected targets.

A Plan-Position Indicator gives you a two-dimensional, map-like radar view. The own ship is at the center, with azimuth lines and concentric range rings, and targets appear as blips plotted in their relative positions. This lets you see where each target is in direction and distance at a glance and to track how those positions change over time. It’s not just markers or a numeric range or speed readout—it’s a spatial, plan-view presentation of all detected targets.