How many LOPs are required for a FIX?

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Multiple Choice

How many LOPs are required for a FIX?

Explanation:
To determine a still position, you rely on lines of position from independent navigation aids. Each LOP represents where you could be based on one aid’s measurement. Two lines can intersect to give a point, but that intersection can be unstable if measurements have errors or if the lines are close to parallel, leading to a dubious fix. Bringing in a third, independent navigation aid adds another line, allowing you to cross-check and, if needed, compute a best-fit position that minimizes the overall error. With three distinct navigation aids, you get a more reliable, unambiguous fix.

To determine a still position, you rely on lines of position from independent navigation aids. Each LOP represents where you could be based on one aid’s measurement. Two lines can intersect to give a point, but that intersection can be unstable if measurements have errors or if the lines are close to parallel, leading to a dubious fix. Bringing in a third, independent navigation aid adds another line, allowing you to cross-check and, if needed, compute a best-fit position that minimizes the overall error. With three distinct navigation aids, you get a more reliable, unambiguous fix.

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