Description of Navigation Signals Analyzed
- Very high-frequency omni-directional range (VOR) used to determine compass bearing (azimuth) relative to a ground transmitter
- Instrument landing system (ILS) used to help aircraft approach the runway for landing
- Marker-beacon used to indicate aircraft distance from end of runway, on approach
- Automatic direction finding (ADF) used to determine compass bearing (azimuth) relative to a ground transmitter