12. Radar Navigation Manual 100% Kept simple

Question 1

CHAPTER 1—

Answer 1

BASIC RADAR PRINCIPLES AND

GENERAL CHARACTERISTICS

Question 2

RADAR PROPAGATION CHARACTERISTICS

Answer 2

THE RADIO WAVE ……………………………………………………………………..3
THE RADAR BEAM …………………………………………………………………….4
Beam Width ……………………………………………………………………………4
EFFECT OF SEA SURFACE ON RADAR BEAM …………………………..5

Question 3

ATMOSPHERIC FACTORS AFFECTING THE

RADAR HORIZON

Answer 3

RADAR HORIZON ……………………………………………………………………………9
THE RADAR HORIZON ……………………………………………………………….9
DIFFRACTION …………………………………………………………………………….9
REFRACTION ……………………………………………………………………………..9
Standard Atmospheric Conditions………………………………………………9
Sub-refraction ……………………………………………………………………….10
Super-refraction …………………………………………………………………….10
Extra Super-refraction or Ducting ……………………………………………11
Ducting Areas ……………………………………………………………………….11

Question 4

WEATHER FACTORS AFFECTING THE RADAR HORIZON ……..13

Answer 4

WEATHER FACTORS AFFECTING THE RADAR HORIZON ……..13
Attenuation by rain, fog, clouds, hail, snow, and dust …………………13
Rain ……………………………………………………………………………………..13
Fog ………………………………………………………………………………………13
Clouds ………………………………………………………………………………….14
Hail ……………………………………………………………………………………..14
Snow ……………………………………………………………………………………14
Dust ……………………………………………………………………………………. 14
Unusual Propagation Conditions ……………………………………………. 14

Question 5

A BASIC RADAR SYSTEM

Answer 5

Carrier Frequency ……………………………………………………………… 15
Pulse Repetition Frequency ………………………………………………… 15
Pulse Length ……………………………………………………………………… 15
Power Relation ………………………………………………………………….. 16

Question 6

COMPONENTS AND SUMMARY OF FUNCTIONS …………………

Answer 6

Power Supply ……………………………………………………………………. 18
Modulator …………………………………………………………………………. 18
Transmitter ……………………………………………………………………….. 18
Transmitting and Receiving Antenna System ………………………… 18
Receiver …………………………………………………………………………… 20
Indicator …………………………………………………………………………… 21

Question 7

FACTORS AFFECTING DETECTION, DISPLAY, AND

MEASUREMENT OF RADAR TARGETS

Answer 7

Frequency …………………………………………………………………………. 24
Peak Power ……………………………………………………………………….. 24
Pulse Length ……………………………………………………………………… 24
Pulse Repetition Rate …………………………………………………………. 24
Beam Width ……………………………………………………………………… 24
Target Characteristics ………………………………………………………… 24
Receiver Sensitivity …………………………………………………………… 24
Antenna Rotation Rate ……………………………………………………….. 24

Question 8

CHAPTER 2—

Answer 8

RADAR OPERATION

Question 9

Motion Displays

Answer 9

Relative and true

Question 10

RANGE AND BEARING MEASUREMENT

Answer 10

VRM, EBL, Cursor, Off center

Question 11

PERFORMANCE CONTROLS—INITIAL ADJUSTMENTS

Answer 11

Brilliance Control ………………………………………………………………….48
Receiver Gain Control ……………………………………………………………49
Tuning Control ………………………………………………………………………50

Question 12

CHAPTER 3

Answer 12

3—COLLISION AVOIDANCE

Question 13

RELATIVE MOTION

Answer 13

Vector triangles and Vector Equations

Question 14

MANEUVERING BOARD

Answer 14

MANEUVERING BOARD FORMAT

PLOTTING ON MANEUVERING BOARD

Question 15

CHAPTER 4

Answer 15

RADAR NAVIGATION

Question 16

RADARSCOPE INTERPRETATION

Answer 16

LAND TARGETS ………………………………………………………………….. 147
SHIP TARGETS ……………………………………………………………………. 149
RADAR SHADOW ……………………………………………………………….. 149
BEAM WIDTH AND PULSE LENGTH DISTORTION ……………. 149
SUMMARY OF DISTORTIONS …………………………………………….. 151
RECOGNITION OF UNWANTED ECHOES AND
EFFECTS ……………………………………………………………………………… 152
Indirect (False) Echoes ………………………………………………………… 152
Side-lobe Effects ……………………………………….

Question 17

AIDS TO RADAR NAVIGATION

Answer 17

RADAR REFLECTORS …………………………………………………………. 158
RADAR BEACONS ………………………………………………………………. 158
Racon …………………………………………………………………………….. 159
Ramark ……………………………………………………………………………

Question 18

CHAPTER 5

Answer 18

AUTOMATIC RADAR PLOTTING AIDS

ARPA

Question 19

CHAPTER 6

Answer 19

MANEUVERING BOARD MANUAL