Plain English Meaning
The typical ways pilots get tripped up when navigating with a VOR, such as setting the wrong course, forgetting to confirm the station is the one they think it is, or reading the needle backwards and flying away from where they intended to go.
Full Definition
Common mistakes pilots make when using VOR (Very High Frequency Omnidirectional Range) navigation equipment, including failing to identify the station by its Morse code identifier, tuning the wrong frequency, misreading the course deviation indicator, setting the wrong course in the omnibearing selector, applying reverse sensing by flying with a TO indication when the OBS is set for the FROM course (or vice versa), and misinterpreting the position of the to the selected .