How to practically construct a Deviation Card for the ship's magnetic compass??

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Contents of this video will benefit mariners preparing for exams (written and oral examinations). Mariners will also benefit by watching the following videos: Magnetic anomalies:    • Magnetic anomalies of a ship's compass - M...   Ship's magnetism:    • Ship's magnetism - Magnetic Compass   Earth's magnetism:    • How does earth's magnetism influence the s...   Deviation of the magnetic compass:    • Deviation of the Magnetic Compass - Swingi...   Magnetism (an introduction):    • Magnetism - an introduction to the ship's ...   Parts of a magnetic compass (Video):    • Parts of a magnetic compass - Video   Gyro Compass (Part 1):    • Gyro Compass Part 1 - Introduction To Gyro...   Gyro Compass (Part 2):    • Gyro Compass Part 2 - Properties of a Gyro...   Gyro Compass (Part 3):    • Gyro compass Part 3 - Making a gyroscope s...   Gyro Compass (Part 4):    • Gyro Compass Part 4 - Fiber Optic Gyro Com...   Gyro compass errors (Part 5):    • Gyro Compass Part 5: Errors & Limitations   Gyroscope (Axis of freedom and Precession) (Part 6):    • Gyro Compass Part 6 - Gyroscope axis of fr...   Parts of a Gyro Compass (Part 7):    • Gyro Compass Part 7: Parts of Gyro Compass   Rate of Turn Indicator (ROTI) (Part 8):    • Gyro Compass Part 8: Rate of Turn Indicato...   Top-heavy gyro compass (Part 9):    • Gyro Compass Part 9: What is a Top-heavy g...   Bottom-heavy gyro compass (Part 10):    • Gyro Compass Part 10: What is a Bottom-hea...   Bridge Watchkeeping: Contents of a GMDSS radio logbook:    • Contents of a GMDSS radio logbook   Pilot card, wheelhouse poster and Manoeuvring booklet:    • Display of maneuvering information on boar...   Avoidance of false distress alerts:    • Avoidance of false distress alerts - GMDSS   Ship reporting systems:    • Ship reporting system (SRS) - General prin...   Ship routeing system:    • Ship’s Routeing System - Purpose and gener...   Master-pilot information exchange:    • Master - pilot information exchange - pre-...   Factors deciding the composition of engine room:    • Factors deciding the composition of an eng...   Factors deciding the composition of a bridge watch:    • Factors to be taken into account when deci...   Contents of a pilot card:    • Contents of a Pilot Card used on ships to ...   IMO guidelines for piracy waters:    • IMO guidelines for ships entering piracy i...   Decision support system:    • Decision support systems for Masters of pa...   Use of ground tackle for beached vessel:    • The use of Ground Tackle when a vessel is ...   Heaving to:    • What is the meaning of the term "Heaving -...   Accidents using watertight doors:    • Accidents when using power-operated watert...   Master-Pilot relationship:    • Master - pilot relationship   Gross tonnage and Net tonnage:    • Gross Tonnage and Net Tonnage - Definition...   Elements of an effective master-pilot relationship:    • Elements of an effective master-pilot rela...   Contents of master-pilot information exchange form:    • Contents of a master-pilot information exc...   Chartwork: How to use notices to mariners (Part 1):    • How to use Admiralty Notices to Mariners (...   How to use notices to mariners (Part 2):    • How to use Admiralty Notices to Mariners -...   How to use Notices to Mariners (Part 3):    • How to use Admiralty Notices to Mariners -...   Using traverse tables:    • Using Traverse Tables for Coastal Navigation   Mercator chart and sailings:    • Mercator Charts and Sailings - Coastal and...   Great circle sailing and gnomonic charts:    • Great Circle Sailing and Gnomonic Charts   Passage plan with reference to tidal effects and current:    • Passage Plan with reference to tidal effec...   Raster and vector charts:    • Raster and Vector Charts - Advantages and ...   Information on paper charts:    • Information on Paper Charts used on ships ...   DR and fix position, effects of wind and current, set and drift:    • Chartwork on ships - DR and fix position, ...   Running Fix (Transferring position lines):    • Chartwork on ships - Running Fix (Transfer...   Tidal diamonds:    • Chartwork for deck officers - What are Tid...   Finding the course to steer to counteract tidal currents:    • Chartwork for seafarers - Finding the cour...   Basic terms, terminology, and symbols:    • Chartwork - Basic terms, terminology and s...   Allowing for the effect of wind and current on ship’s course and speed:    • Chartwork - Allowing for the leeway (wind)...   Counteracting for the effect of current and leeway to determine the course to steer:    • Chartwork - Determining the courses to ste...