Global Positioning System (GPS)
The Global Positioning System (GPS) fixes its position on the ground by referring to satellites which orbit the earth. As GPS units are continuing to reduce in both price and size, more people are venturing into the world of navigation in the bush with this handy tool. However, before you take a GPS on a trip it is important to understand a few basic features about their operation, which are given in Chapter 31. It is strongly suggested that a GPS be regarded as another tool in your repertoire of skills, rather than a tool to replace other skills, knowledge and ability in navigation and route finding.