What does a Plan Position Indicator (PPI) display?

The Plan Position Indicator (PPI) is a radar display that presents data in a format that allows operators to visualize and interpret the locations of targets in a two-dimensional plane, providing crucial navigation and situational awareness information. It shows range and bearing data, illustrating how far away targets are and in what direction. The PPI screen typically incorporates a graphic representation of the scanned area, making it easier for operators to identify and track multiple targets simultaneously.

The graphical display of the scanned region assists in situational awareness by allowing operators to assess the proximity and movement of both friendly and potentially hostile entities in real-time. This is essential for decision-making processes, especially in aviation and naval operations, where understanding the positions of various assets relative to one another is critical for operational safety and mission success.