Definition
A descriptive phrase identifying the radio signals transmitted by a VOR (VHF Omnidirectional Range) ground station. The station broadcasts on Very High Frequency (108.0--117.95 MHz) and produces 360 distinct directional signals, one for every degree of a circle around the station, all referenced to magnetic north rather than true north.
Plain English
It's a way of describing what a VOR ground station puts out: radio signals on a high-frequency band that fan out in every direction around the station, with each direction labeled by its compass bearing from magnetic north.
Context Anchor
Seen when learning VOR navigation, radio navigation stations, and how aircraft instruments show a course to or from a navigation station.
Derivation
Azimuth comes from the Arabic 'as-sumut,' meaning 'the directions' or 'the ways.' In navigation, azimuth means a horizontal direction expressed as an angle from a reference point -- here, magnetic north. Knowing this helps explain why '360 degrees in azimuth' simply means 'a full circle of horizontal directions.'
Why Pilots Care
These signals let pilots identify their exact direction from the station for reliable course guidance and position fixes.
Analogy
Picture the VOR station as the center of a clock face with 360 hour-marks instead of 12. Each mark is a separate radio signal pointing outward, and the '12 o'clock' mark is aligned with magnetic north.
Intuition Check
“360 degrees in azimuth” does not mean the aircraft must turn in a circle; it means the signal covers every horizontal direction around the station. “Oriented from magnetic north” means the directions are based on magnetic north, not true north.
Example Sentence 1
The instructor explained that a VOR transmits very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north, so each radial corresponds to a magnetic bearing from the station.
Example Sentence 2
Pilots tune the VOR to receive the Very High Frequency Navigation Signals, 360 Degrees In Azimuth, Oriented From Magnetic North and cross-check their position on the chart.