Prepare for the ARPA and Radar Operation Test. Enhance your skills with multiple choice questions, detailed explanations, and real-time simulations. Ensure maritime safety with confidence!

Multiple Choice

In relative motion mode, how are motions depicted?

In relative motion mode the display is driven by a reference frame tied to your own ship. Everything on the screen is shown in terms of relative motion to you, so the motion of the entire scene is produced from the same motion basis. That means both your own ship symbol and the other targets are depicted using the same reference frame and scale, making their on‑screen motion appear identical in pattern. This uniform depiction helps you interpret how targets are moving relative to you, such as closing or opening bearing, without having to reframe the display for each contact.

In relative motion mode the display is driven by a reference frame tied to your own ship. Everything on the screen is shown in terms of relative motion to you, so the motion of the entire scene is produced from the same motion basis. That means both your own ship symbol and the other targets are depicted using the same reference frame and scale, making their on‑screen motion appear identical in pattern. This uniform depiction helps you interpret how targets are moving relative to you, such as closing or opening bearing, without having to reframe the display for each contact.