Navigation on Skadi Squad

Compass Inclination: Understanding Tilt in the Earth’s Magnetic Field

Wed, 01 Apr 2026 00:00:00 +0000

Navigation is an old and essential practice — determining your position and direction relative to the Earth’s surface. Inclination is a key concept for understanding the Earth’s magnetic field and its effects on navigation. This article looks at inclination in navigation: definition, significance, historical context and practical applications.

Compass Interference: Precision Despite Magnetic Disturbances

Wed, 01 Apr 2026 00:00:00 +0000

Understanding the disturbances of a magnetic compass is critical for accurate navigation. External factors such as magnetic declination, ferrous objects, electromagnetic interference, temperature variations, and external forces can affect compass readings. Magnetic declination represents the angular difference between true north and magnetic north. Ferrous objects and nearby magnets can alter the local magnetic field and cause deviations. Electromagnetic interference from electronic devices can impair the accuracy of the compass. Temperature variations affect materials and magnetic properties within the compass. External forces such as vibration and motion can cause temporary disturbances. To maintain accuracy, users must be aware of these factors, hold the compass level, calibrate regularly, and avoid sources of interference.

The Logbook: Documentation and Planning in the Field

Wed, 01 Apr 2026 00:00:00 +0000

A logbook is a recording tool used in various fields to track information over time. It typically contains entries that document events, activities, observations, or data on a particular subject or task. Logbooks can take different forms depending on their purpose and range from handwritten notebooks to digital databases.

UTM Reference System: Coordinates for Practical Use

Wed, 01 Apr 2026 00:00:00 +0000

UTMRef stands for Universal Transverse Mercator (UTM) Reference System. It is a coordinate system for locating positions on the Earth’s surface. The UTM system divides the Earth into a series of zones, each 6 degrees of longitude wide, and assigns each zone a coordinate grid.

WGS84: Understanding the Global Coordinate Reference System

Wed, 01 Apr 2026 00:00:00 +0000

The World Geodetic System 1984 (WGS 84) is a geodetic reference system that describes the shape and size of the Earth. It forms the foundation of GPS navigation and is established worldwide as the standard for position information.

Grid Reticle and MIL – Precision Navigation with Angular Measurement