Garmin Maps: A Guide to Navigating Your World
Whether you’re driving, golfing, sailing, flying, or simply exploring the great outdoors, Garmin maps can help your navigation needs.
GPS
Differential GPS: What It Is and How to Use It Effectively
This article will give an overview of differential GPS (DGPS) including the basics, its components, and what it can do for you.
Best Handheld GPS Receivers
Whether you’re hiking, geocaching, fishing, snowmobiling, or hunting, we are here to guide you through some of the best handheld GPS today.
How GPS Receivers Work – Trilateration vs Triangulation
Have you ever wondered how your GPS receiver works? They use a technique called trilateration, which measures distances, not angles as in triangulation.
GPS Accuracy: HDOP, PDOP, GDOP, Multipath & the Atmosphere
Have you ever wondered about your GPS accuracy? A well-designed GPS receiver can achieve a horizontal accuracy of 3 meters or better. But factors affect it.
Selective Availability in Global Positioning System (GPS)
When selective availability was enabled, this added 50 meters of error horizontally and 100 meters vertically to GPS signals.