What is the VOR check tolerance when using a VOT?

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Multiple Choice

What is the VOR check tolerance when using a VOT?

Explanation:
When you use a VOT to check a VOR, you’re testing how accurately the VOR receiver can indicate a known reference bearing. The VOT provides a fixed, predictable signal that should read as 360° (and 180° on the opposite check) when the OBS is set to the reference course. The readings must be within four degrees of that reference to be considered acceptable. This four-degree tolerance reflects the level of accuracy expected for a VOR check and balances precision with practical instrument behavior. Tolerances tighter than four degrees aren’t the standard for routine checks, while looser tolerances would reduce confidence in the VOR’s accuracy.

When you use a VOT to check a VOR, you’re testing how accurately the VOR receiver can indicate a known reference bearing. The VOT provides a fixed, predictable signal that should read as 360° (and 180° on the opposite check) when the OBS is set to the reference course. The readings must be within four degrees of that reference to be considered acceptable. This four-degree tolerance reflects the level of accuracy expected for a VOR check and balances precision with practical instrument behavior. Tolerances tighter than four degrees aren’t the standard for routine checks, while looser tolerances would reduce confidence in the VOR’s accuracy.

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