How to Use GPS
Before the days of computer-aided navigation, people used to read maps and compasses to know where they’re going. While conventional forms of navigation are still useful, the Global Positioning System (GPS) makes it easier for you to find your way around a place. Here are some things you need to know about GPS.
How GPS Works
GPS is the only functional global navigation satellite system (GNSS) in the world. It was developed by the US Department of Defense for military purposes, but it has long been used by civilians for navigation. GPS is a complex technology that uses four values to pinpoint exactly where you are in the world:
X-coordinates refer to latitude, or the position of the location along the x-axis.
Y-coordinates refer to the longitude, or the position of the location along the y-axis.
Z-coordinates refer to the time it took to send the GPS signal.
T-coordinates refer to the time it took to receive the GPS signal.
GPS is composed of an array of satellites, receivers and transmitters located both in terrestrial space and outer space. The highly advanced and complex technology employed in GPS makes it the most effective means to locate your exact location anywhere in the world.
GPS Devices
There are many ways to use GPS, and many tools are available on the market for just this purpose:
GPS receivers. Many automobiles are shipped and sold with built-in GPS receivers and navigational aids to help drivers navigate through traffic or remote roads. The map is usually displayed on a screen on the center console.
GPS gadgets like handheld transmitters are often used by hikers, seafarers, and mountain climbers to aid navigation, and to determine their exact location. Many GPS gadgets designed for outdoor activity are designed to be rugged and to withstand extreme weather conditions.
Cellular phones, particularly smartphones, have built-in GPS functionalities that rely on all sorts of wireless mobile technologies like wi-fi, 3G networks, or wireless broadband (like HSDPA or HSUPA). Applications for GPS technology may already come with your phone, or the software may be downloaded from the Internet.
GPS Tips
When using GPS, always remember these tips:
Give room for error. GPS may be reliable, but it is not entirely accurate. You may need to consider topography, new roads, and other changes that may not be automatically recognized by your GPS receiver or the GPS array.
Get the best signal possible. While you can get a GPS signal anywhere in the world, there are times that the signal may be weak and unreliable. When using GPS, make sure that your signal is at the highest strength possible to reduce lag.
Use the best possible device. A cheap GPS device is quite unreliable and will not give you the most accurate reading for your location. If you use GPS a lot, it’s a wise investment to buy the most advanced GPS device within your budget.
Getting lost is certainly not an option when you’re outdoors, or when you’re in places where you aren’t confident about directions or destinations. With these tips, you can maximize GPS technology and never get lost on your way to anywhere again.