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In this video, I explain what is relative motion and how it is observed on the radar screen. The advantages and disadvantages of relative motion mode used on radars are also discussed.
Contents of this video will benefit mariners preparing for exams (written and oral examinations).
Mariners will also benefit by watching the following videos:
Introduction to marine radar: • Introduction to the Ma...
Radar (Radio waves and magnetron): • Marine Radar - Radio w...
Radar (Operator controls): • Marine Radar - Operato...
Limitations of RADAR: • Limitations of the mar...
Radar (Parallel Indexing): • Marine RADAR - Paralle...
Radar plotting (basics): • Radar Plotting - Basic...
Radar discrimination: • Marine RADAR - What is...
Radar operational errors and performance standards: • Marine RADAR - Operati...
Radar (target characteristics and transponders): • Marine RADAR - Target ...
Improper use of ARPA: • Improper use of ARPA l...
ARPA (History, target storage and acquisition, setting up): • ARPA (Automatic Radar ...
ARPA (Trial manoeuvre and track history): • ARPA - Trial maneuver...
ARPA (Alarms and Potential points of collision): • ARPA - Alarms, Symbols...
ARPA (Tracking accuracy and limitations): • Marine ARPA - Tracking...
ARPA (Causes of error in bearing and range calculation): • ARPA - Causes of error...
ARPA (Sea and ground stabilisation): • ARPA - Impact of Sea a...
LORAN C (Part 1a - Hyperbolic system of navigation): • LORAN C - Part 1a (Un...
LORAN C (Part 1b - Transmission of radio waves): • Loran C - Part 1b (Und...
LORAN C (Part 2 - Working principle of LORAN C): • LORAN C - Part 2 (Work...
LORAN C (Part 3 - Errors and corrections of LORAN C): • LORAN C - Part 3 (Erro...
Azimuth mirror: • Bearing Instruments - ...
Different types of steering gear: • Different types of Ste...
Ship’s autopilot and steering systems: • Ship's autopilot and s...
Manual controls of a ship’s autopilot steering control systems: • Ship's autopilot steer...
Adaptive autopilot systems: • Ship's autopilot steer...
Testing procedures of steering gear systems: • Testing procedures of ...
Ship’s autopilot (Heading and track control systems): • Ship's steering contro...
Gyro Compass (Part 1): • Gyro Compass Part 1 - ...
Gyro Compass (Part 2): • Gyro Compass Part 2 - ...
Gyro Compass (Part 3): • Gyro compass Part 3 - ...
Gyro Compass (Part 4): • Gyro Compass Part 4 - ...
Gyro compass errors (Part 5): • Gyro Compass Part 5: E...
Gyroscope (Axis of freedom and Precession) (Part 6): • Gyro Compass Part 6 - ...
Parts of a Gyro Compass (Part 7): • Gyro Compass Part 7: P...
Rate of Turn Indicator (ROTI) (Part 8): • Gyro Compass Part 8: R...
Top-heavy gyro compass (Part 9): • Gyro Compass Part 9: W...
Bottom-heavy gyro compass (Part 10): • Gyro Compass Part 10: ...
Ship Handling:
Manoeuvring when approaching a pilot station: • Manoeuvring when appro...
Speed when picking up a pilot: • Speed when picking and...
Manoeuvring in shallow waters: • Manoeuvring in shallow...
Squat and the factors governing it: • What is Squat and the ...
Practical calculation of a ship’s squat: • Practical Calculation ...
Narrow channel effects on ship handling: • Narrow Channel Effects...
Interaction between ships in overtaking and head-on situation: • Interaction between pa...
Interaction between tug and ship: • Interaction betweenTug...
Turning short around in a narrow channel: • Turning short around i...
Transverse Thrust: • Tranverse thrust - eff...
Lateral Thrusters: • Lateral Thruster - Bow...
Girting of tugs: • Girting of tugs - use ...
Windage area and pivot point: • Windage area and Pivot...
Rounding a bend in a narrow channel: • Rounding a bend in a n...
Yawing of a vessel in strong winds: • When the ship yaws exc...
Types of tugs: • Different types of Tug...
Securing to 2 buoys in calm weather: • Securing to 2 buoys an...
Practical calculation of squat of cargo vessel: • Calculate maximum squa...