Question 981Navigation General

The correct answer is A) True motion. In a true motion radar display, the ship's marker moves across the PPI (Plan Position Indicator) scope while the echoes from stationary land masses remain fixed. This indicates that the radar is displaying the actual movement of the ship relative to the surrounding environment, rather than just the ship's orientation. The other options are incorrect because: B) Off center refers to the ship's position not being centered on the PPI scope, C) Stabilized refers to the radar display maintaining a fixed orientation regardless of the ship's movement, and D) Head up refers to the display being oriented with the ship's heading at the top of the screen.