[leaning_tower] has the required knowledge and demonstrates it with this DIY GPS receiver. This receiver consists of five separate circuit boards, all performing their own function. The first, a ...

First, in 1999 there were very, very few GPS receivers in civilian hands. While Magellan introduced the first handheld GPS receiver, the Magellan NAV 1000, in 1989, and some mobile phones were ...

The first users were American Naval forces ... handheld GPS systems. Before this, GPS receivers were standalone tools, much like how early mobile phone users might also carry a Walkman or later ...