Technical Fundamentals

Question 1

What are the 3 characteristics of sound?

Answer 1

Pitch, Intensity, Quality

Question 2

What are the 3 types if propagation?

Answer 2

Reflection
Refraction
Diffraction

Question 3

What are the air search radars?

Answer 3

SPS-40
SPS-48
SPS-49

Question 4

What is OPELINT?

Answer 4

Location, Movement, and trends of ship

Question 5

What is TECHELINT?

Answer 5

Analysis and study of radar signals

Question 6

What are the layers of the atmosphere?

Answer 6

Ionosphere- point to point communication
Stratosphere- least effective on radio waves
Troposphere- where weather takes place

Question 7

What are types of keying?

Answer 7

ASK- amplitude shift keying
FSK- Frequency shift keying
PSK- Phase shift keying

Question 8

What does AM stand for?

Answer 8

Amplitude Modulation

Question 9

What does CW stand for?

Answer 9

Continous wave modulation

Question 10

What does FM stand for?

Answer 10

Frequency Modulation

Question 11

What does LSB stand for?

Answer 11

Lower side band

Question 12

What does PRF stand for?

Answer 12

Plus Repetition Frequency; Measured in Hertz

Question 13

What does PRI stand for?

Answer 13

Pluse Repetition Interval; start of Pluse to start of next