There are plenty of GPS navigation units on the market today ... In order to get the map images on the device, [middelbeek] has to go through a manual process. First he has to download a GEOTIFF ...

GPS navigation uses the same principle ... The sailors of old typically used flat maps to find their position, so three reference points would suffice. Since GPS devices move in three dimensions ...

When you’ve gone way off the grid, these units can help you find your way back. Whether you're exploring uncharted trails, rough, rocky terrain, or other remote areas, a reliable GPS unit can ...

Signals from the global navigation satellite system can be jammed and spoofed, so a Google spinout is working on an ...

Ever wonder how the Global Positioning System (GPS) works? This extraordinarily complex system is actually based on some simple concepts. Find out what they are in this Shockwave game.

Take Antwerp’s 1565 city map by Virgilius Bononiensis ... Unlike today’s turn-by-turn navigation, a 16th-century GPS might have been all about survival: avoiding bandit-prone roads, timing ...

All three use Garmin’s TopoActive mapping technology, which provides detailed visualizations of rugged terrain, coastlines, and summits. Alternatively, you can plot routes with downloadable satellite ...