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, you need a fourth satellite so that you can ...

No satellites or microelectronics ... a delightful web app that overlays your GPS location onto georeferenced historical maps. Take Antwerp’s 1565 city map by Virgilius Bononiensis, a massive ...

Topographic maps and trail mapping are essential for off roading. Satellite communication: If you're going deep into the wilderness, opt for a GPS with satellite communication, like the Garmin ...

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 ...

China launched the final satellite in its BeiDou-3 satellite positioning system. Didn’t know that China had its own GPS? How about Europe’s Galileo, Russia’s GLONASS, or Japan’s QZSS?

Sierra Space, a leading commercial space company and defense-tech prime that is Building a Platform in Space to Benefit Life ...

Garmin (NYSE: GRMN) today announced a new Montana ® series – the Montana 710, Montana 710i and robust Montana 760i – to its ...

Slingshot’s platform analyzes data from thousands of partner satellites in orbit, creating what amounts to a global surveillance network for GPS jamming activities. These satellites passively collect ...