Observer Scanner Training

1. Observer Scanner Training Navigation Aids Section 7 by 1st Lt. Alan Fenter

2. Section 1: • Objective: ADF • Complete statements concerning dead reckoning and automatic direction finders (ADF) as aids to dead reckoning Level II Technician Rating

3. ADF Tracking • ADF is used for “homing” • Needle only points TO the station • Nicknamed “Bird Dog” • Curved course in winds if not corrected Level II Technician Rating

4. The determination of the position of an aircraft using information including the course flown, distance traveled, and drift is called ________________. Check for Understanding Dead Reckoning Level II Technician Rating

5. One foundation of navigation is finding the position based on time, speed, and ____________. Check for Understanding direction Level II Technician Rating

6. The further the aircraft travels from the known point using dead reckoning, the DR’s position becomes ________ reliable. Check for Understanding less Level II Technician Rating

7. Accurate identification of a position while in flight is called getting a _______. Check for Understanding fix Level II Technician Rating

8. The Automatic Direction Finder operates on _____________ received from stations. Check for Understanding Radio Signals Level II Technician Rating

9. The ADF is most often used for __________. Check for Understanding Homing Level II Technician Rating

10. The nickname for the ADF is the __________. Check for Understanding Bird Dog Level II Technician Rating

11. When homing in a crosswind, the aircraft follows a ___________ course. Check for Understanding curved Level II Technician Rating

12. Section 2: Very High Frequency Omnidirectional Range (VOR) • Objective: • Match the VOR terms with the proper definition. Discuss VOR’s advantage over ADF in bad weather and the identifying of a signal source Level II Technician Rating

13. VOR • 108.0 to 117.9 MHz • Free from Weather disturbances • 2 components Indicator Control Panel Level II Technician Rating

14. Very High Frequency Omnidirectional Range Check for Understanding Level II Technician Rating

15. Megahertz range used in VOR Check for Understanding Level II Technician Rating

16. Radio beams that extend from stations like spokes on a wheel. Check for Understanding Level II Technician Rating

17. Parts include power switch and volume control. Check for Understanding Level II Technician Rating

18. Gives the pilot information needed to navigate by VOR signals. Check for Understanding Level II Technician Rating

19. Shows aircraft location in relation to radial on-course selector. Check for Understanding Level II Technician Rating

20. Shows whether the course is taking the aircraft toward or away from the signal Check for Understanding Level II Technician Rating

21. What is the advantage of VOR over ADF during bad weather? Check for Understanding VOR signals are relatively free of weather disturbances. Level II Technician Rating

22. In flying using VOR, what method is used to verify the source of a frequency that has been selected for use in navigation? Check for Understanding Identify the source station by voice ID or morse code. If unable to do so, do not use the signal. Level II Technician Rating

23. Section 3: Distance Measuring Equipment (DME) • Objective: • Complete statements relating to the use and components of distance measuring equipment Level II Technician Rating

24. Distance Measuring equipment (DME) measures the _____________of an aircraft from a ground unit located at a known point. Check for Understanding Slant Distance Level II Technician Rating

25. The ground base unit of DME equipment is called a ____________. Check for Understanding Transponder Level II Technician Rating

26. The unit that sends a signal to the ground unit is called an ___________. Check for Understanding Interrogator Level II Technician Rating