What are differences in compass types for outdoor activities?

Types of Compasses

Magnetic compasses are the most common type and work by aligning the compass needle with the Earth’s magnetic field. They are often used for hiking, backpacking, and other wilderness activities. To use a magnetic compass, orient the compass with the direction-of-travel arrow pointing towards your destination. Align the compass needle with the magnetic needle, and then adjust for declination by rotating the bezel until the magnetic needle aligns with the compass needle.

Declination Adjustment

Declination adjustment is a crucial step when using a magnetic compass. Declination is the difference between magnetic north and true north, and it varies depending on your location. Some compasses have a built-in declination adjustment, while others require a separate adjustment. To adjust for declination, rotate the bezel until the magnetic needle aligns with the compass needle. The amount of adjustment will depend on your location, but a general rule of thumb is to adjust by 1-2 degrees per mile.

Digital Compasses

Digital compasses use electronic navigation systems and are often used in conjunction with GPS devices. They are more accurate than magnetic compasses and can provide more detailed information, such as altitude and speed. However, they can be susceptible to interference from nearby electronic devices and can be affected by magnetic anomalies. To use a digital compass, simply turn it on and follow the on-screen instructions. Make sure to calibrate the compass before use by holding it level and moving it in a figure-eight pattern.