What is the primary benefit of using a two-point radar fix over a single observation?

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Multiple Choice

What is the primary benefit of using a two-point radar fix over a single observation?

Using two observations from two landmarks lets you intersect two lines of position, which pinpoints your exact location. Each landmark gives you a line where you could be relative to that landmark; where the two lines cross is your precise fix. With only one observation, you’re limited to one line of position, so you don’t know exactly where along that line you are. The other options aren’t about determining the location from geometry: wind speed estimation, automatic radar calibration, and clutter reduction are separate radar functions and don’t provide a precise position here.

Using two observations from two landmarks lets you intersect two lines of position, which pinpoints your exact location. Each landmark gives you a line where you could be relative to that landmark; where the two lines cross is your precise fix. With only one observation, you’re limited to one line of position, so you don’t know exactly where along that line you are. The other options aren’t about determining the location from geometry: wind speed estimation, automatic radar calibration, and clutter reduction are separate radar functions and don’t provide a precise position here.

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