What is GPS
A Global Positioning System (GPS) are a system of satellites, computers,
and receivers that is able to determine the latitude and longitude of a
receiver on Earth by calculating the time difference for signals from
different satellites to reach the receiver.
How did GPS evolve
Attempting to locate where you are or to determine the best way to reach
a destination can be a particularly challenging task - especially if you
are unfamiliar with the area and the terrain is rough. A good map can
help, however, it can even be difficult to determine where you currently
are on the map. GPS is a technology that is ideally suited to both
navigation and positioning.
The GPS Network
The Global Positioning Network is a complex network costing over $12
billion to build. The network itself is composed of 3 basic components:
Satellites, Communications Stations, and Receivers.
Which receiver should I buy?
If you are like most people searching for GPS receivers, you are probably
asking "Which receiver should I buy?" So you know you need a GPS receiver.
It can be difficult to sort through the array of features, types, and
brands that are out there. In this section, I will try to provide a
framework or a method that can help a prospective GPS user purchase a receiver.
GPS receiver needs vary from person to person and from use to use. The
feature sets needed for hiking can be a little more extensive than the
feature sets needed for street, automobile, or marine use. While there
are many features that are common across all uses, there are a number of
features that are almost a must have for a hiking GPS receiver. The most
important feature for hiking or almost any kind of outdoor receiver is a
12 channel parallel receiver.
This section contains all of GPS GPS pricing comparisons. The goal of this
section is to provide a benchmark for prospective buyers of GPS receivers.
To view the comparison, click here.