ARPA displays a predicted track; what concept does it use to represent forecast positions?

ARPA displays a predicted track; what concept does it use to represent forecast positions?

• A. A track
• B. A heading line
• C. A radar blip only
• D. A fixed point

Answer: (A)

ARPA represents forecast positions with a predicted track—a line that shows where the target is expected to be at successive future times, based on its current speed and course. This forward-looking path gives you a sense of motion and potential future positions, which is crucial for judging risk of collision and planning maneuvers. A heading line would only show the present direction, not where the target will be; a radar blip is just the current position; a fixed point provides no motion information. So the track is the best way to depict forecast positions.

ARPA represents forecast positions with a predicted track—a line that shows where the target is expected to be at successive future times, based on its current speed and course. This forward-looking path gives you a sense of motion and potential future positions, which is crucial for judging risk of collision and planning maneuvers. A heading line would only show the present direction, not where the target will be; a radar blip is just the current position; a fixed point provides no motion information. So the track is the best way to depict forecast positions.