Some
memorising required
1. Navigation Aid
2. NDB
3. VOR
4. DME
5. Co-located VOR/DME
6. TACAN
7. VORTAC
8. Unlighted Obstacle
9. Lighted Obstacle
10. Multiple Unlighted Obstacle
11. Multiple Lighted Obstacle
12. Exceptionally High Unlighted Obstacle
13. Exceptionally High Lighted Obstacle
14. Marine Light (F = Fixed)
15. Aeronautical Ground Light
16. Lightship