Most GPS receivers have an antenna built in to them. The two most popular types of antennas used in GPS receivers are “patch” and “quadrifilar helix” or “quad helix” for short. This page addresses external GPS…
C/A code – Coarse Acquisition code – The GPS signal for civilian use (also used by the military to get an initial fix). cadastral map – The type of map that is used to show the ownership…
bandwidth – The range of frequencies signal can carry. barranca – A dry ravine or a steep depression between hills. bar scale – The part of the map used to determine the scale of it. It is also…
2D operating mode – A GPS position that requires a minimum of three visible satellites and that has only horizontal coordinates. 3D operating mode – A GPS position that requires a minimum of three visible satellites and…
What are topographical, or topo maps? How do you read them? How do you make an informed buying decision? It’s all here! The definition of topographic is: Graphic representation of the surface features of a…
So, you want to know how GPS works? GPS, short for Global Positioning System, is a means for locating any point on the earth. It has many uses; navigation, surveying, vehicle tracking, hiking and outdoor…
Have you ever needed to see back roads and land features for your entire state? Topo map books are available for all 50 states. Each book covers an individual state in its entirety, with these…