What is the purpose of a radar trail?

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Multiple Choice

What is the purpose of a radar trail?

Radar trail shows the historical path of a target on the screen. As the target moves and the radar updates, each position is recorded, leaving a trace that reveals where the target has been. This trail lets you judge how far the target has moved between sweeps, which gives you its speed, and the direction of the trail shows its course. That information is especially useful for tracking and predicting future position to avoid collisions or to time maneuvers. It isn’t used for anything like checking the radar’s battery status, viewing water depth contours, or calibrating the radar, so those functions aren’t served by the trail.

Radar trail shows the historical path of a target on the screen. As the target moves and the radar updates, each position is recorded, leaving a trace that reveals where the target has been. This trail lets you judge how far the target has moved between sweeps, which gives you its speed, and the direction of the trail shows its course. That information is especially useful for tracking and predicting future position to avoid collisions or to time maneuvers.

It isn’t used for anything like checking the radar’s battery status, viewing water depth contours, or calibrating the radar, so those functions aren’t served by the trail.

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