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A
in the cone of silence overhead the phantom waypoint.
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B
operating at low altitudes close to the limit of reception range from the reference station.
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C
the phantom waypoint is out of range.
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D
operating where the relative bearing to the phantom waypoint is other than 180°/360° as the computer needs more time to calculate required information.
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This question has appeared on the real examination, you can find the related countries below.
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Austro Control3
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Poland2
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United Kingdom1