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A circle for calibrating a receiver.
Also known as: VOR checkpoint marking, VOR check circle
The ICAO marking of the spot at which an aircraft's VOR receiver can be checked against a known bearing before flight.
Marks the position at which a VOR receiver may be checked against a published bearing.
Contexts: Technical drawing, Navigation
One of very few ground markings whose purpose is calibrating an instrument rather than directing a movement, which makes it a measurement mark in a family of traffic marks.
Contexts: Technical drawing, Navigation
A painted circle with an arrow through it aligned to the magnetic bearing of the VOR facility, with the bearing and station written alongside.