When the course deviation indicator (CDI) needle is centered using a VOR test signal (VOT), the omnibearing selector (OBS) and the TO/FROM indicator should read
A
180° FROM, only if the pilot is due north of the VOT.
B
0° TO or 180° FROM, regardless of the pilot's position from the VOT.
C
0° FROM or 180° TO, regardless of the pilot's position from the VOT.✓ Correct Answer
Explanation
A VOT transmits a test signal that radiates the same 360 radial in all directions, so the result does not depend on where the aircraft is. AIM 1-1-4 states that with the CDI centered, the OBS should read 0 degrees with a FROM indication or 180 degrees with a TO indication (an RMI shows 180). The reversed pairing (0 TO / 180 FROM) and any position-dependent reading are incorrect.
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