| A | B |
|---|
| OBS | Omnibearing selector |
| CDI | course deviation indicator |
| Radial | VOR radio beams |
| DME | Distance Measuring Equipment |
| VORTAC | A colocated VOR and military TACAN navigational aid. |
| VOT | VOR Test Facility |
| Triangulation | Determine your location on 2 VOR station radials. |
| Cone of Confusion | The area over a VOR station where the To-From Indicator changes. |
| VOR | VHF Omnidirectional Range |
| Compass Rose | VOR depiction on charts. |
| Tracking | Navigation from on station to another |
