These devices operate by receiving signals from a constellation of satellites. To determine your exact location, a navigator processes data from at least three satellites, which calculate your coordinates using triangulation.
The technology is constantly improving. Modern devices boast high sensitivity and can maintain a signal even under dense forest canopy—a critical feature, for instance, for participants in search and rescue operations in rugged terrain.
A compact GPS navigator is an item always worth taking on a hike or trip. It takes up almost no space but can provide invaluable assistance.
However, it is crucial to remember: having a high-tech gadget does not eliminate the need to master traditional navigation skills using a map, compass, and natural landmarks. A navigator is a vulnerable device: its battery can die, or it can malfunction due to impact or moisture. If this happens in unfamiliar terrain and you have relied solely on electronics, the situation can quickly become precarious.
Therefore, the best approach is a smart combination of technology and personal skills. Treat a GPS navigator as a reliable assistant, not a complete substitute for your attentiveness and knowledge. It complements but does not replace tried-and-true methods of finding your way.
Next guide: Celestial Navigation: How to Find Your Way by the Stars Previous guide: How to Estimate Time and Distance on a Hike You can view the full list here: Survival Guides for the Mountains
