| ASR | string
| Airport surveillance radar (ASR) |
|
| ARA | string
| Airborne radar approach (ARA) |
|
| ARSR | string
| Air Route Surveillance Radar |
|
| PAR | string
| Precision Approach Radar |
|
| ILS | string
| Instrument landing system (ILS) |
|
| ILS_DME | string
| Instrument landing system with Direction measuring equipment |
|
| ILS_PRM | string
| Instrument landing system using a Precision runway monitor |
|
| LDA | string
| Localizer Type Directional Aid |
|
| LDA_DME | string
| Localizer Type Directional Aid with Distance Measuring Equipment. |
|
| LOC | string
| Localizer |
|
| LOC_BC | string
| Localizer Back course |
|
| LOC_DME | string
| Localizer with Distance Measuring Equipment |
|
| LOC_DME_BC | string
| Localizer with Distance Measuring Equipment back course |
|
| MLS | string
| Microwave Landing System |
|
| MLS_DME | string
| Microwave Landing System with Distance Measuring Equipment. |
|
| NDB | string
| Non-Directional Beacon. |
|
| NDB_DME | string
| Non-Directional Beacon with Distance Measuring Equipment. |
|
| SDF | string
| Simplified Directional Facility. |
|
| TLS | string
| Transponder Landing System. |
|
| VOR | string
| VHF Omnidirectional Radio |
|
| VOR_DME | string
| VHF Omnidirectional Radio with Distance Measuring Equipment. |
|
| TACAN | string
| UHF Tactical Air Navigation beacon |
|
| VORTAC | string
| VHF Omnidirectional Radio with UHF Tactical Air Navigation beacon |
|
| DME | string
| Distance Measuring Equipment |
|
| DME_DME | string
| Distance Measuring Equipment with Distance Measuring Equipment. |
|
| RNP | string
| Required Navigation Performance. |
|
| GPS | string
| Global Positioning System |
|
| GLONASS | string
| GLONASS |
|
| GALILEO | string
| GALILEO |
|
| RNAV | string
| Area Navigation |
|
| IGS | string
| Instrument Guidance System |
|
| OTHER | string
| Other |
|