LESSON 2
PRACTICE EXERCISE
The following items will test your grasp of the material covered in this lesson. There is only
one correct answer for each item. When you have completed the exercise, check your
answers with the answer key that follows. If you answer any item incorrectly, study again that
part of the lesson which contains the portion involved.
1.
Including a receiver, what are the other basic equipment requirements needed for a DF
system?
A.
Aural Null, Visual Indicator, and a Coupler
B.
Aural Null, Visual Indicator, and a Directional Antenna
C.
Coupler, Indicator, and a Directional Antenna
D.
Coupler, Indicator, and a Secondary Receiver
2.
Besides stability and selectivity, what else must a DF receiver have?
A.
BFO, and Headsets
B.
BFO, and Sensitivity
C.
Sensitivity, and Headsets
D.
Sensitivity, and Frequency Range
3.
What device connects the antenna to the receiver?
A.
Coupling
B.
Goniometer
C.
Frequency Modulator
D.
Antenna Modulator
4.
What is an example of a visual indicator for the null?
A.
Goniometer
B.
Crossed Pointer
C.
Loudspeaker
D.
Cathode Ray Tube
5.
DF equipment comes in several sizes. What are the specific requirements dictated by?
A.
The Mission
B.
The Cost
C.
The Location
D.
Transportation Capabilities
2-19
IT0302
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