In radar terminology, relative bearing is the bearing of a target measured from which reference line?

In radar terminology, relative bearing is the bearing of a target measured from which reference line?

• A. Own ship's bow
• B. True north
• C. Port beam
• D. The waterline

Answer: (A)

Relative bearing is the angle to a target measured from the ship’s forward reference line, which is the bow. This means you’re looking at where the target lies around the ship’s heading, with 0 degrees straight ahead and the angle increasing as you sweep to the sides (usually clockwise toward the starboard). It is different from true bearing, which uses true north as the reference line. The port beam is a fixed direction 90 degrees to the left, and the waterline is not used as a bearing reference. So the line used for relative bearing is the own ship’s bow.

Relative bearing is the angle to a target measured from the ship’s forward reference line, which is the bow. This means you’re looking at where the target lies around the ship’s heading, with 0 degrees straight ahead and the angle increasing as you sweep to the sides (usually clockwise toward the starboard). It is different from true bearing, which uses true north as the reference line. The port beam is a fixed direction 90 degrees to the left, and the waterline is not used as a bearing reference. So the line used for relative bearing is the own ship’s bow.