Have you ever wondered how that little device or the GPS tracker in your watch or cell phone really works? How can it pinpoint down to an address where you're at right then? The technology is a software program that links up with satellites to communicate with the unit and give you an address right then. Then, you're able to see not just where you are, but where you are in relation to your surroundings. Your environment might be that of a forest where you're hiking or a big city with lots of busy streets, but the program works the same. Approximately 27 different satellites work with GPS trackers at all times to help individual and fleet users locate themselves or their team members at all times.
These units also communicate using what is known as radio frequency identification which is basically a microchip that is inserted into pets, livestock and various objects, and other applications like this, http://www.cnn.com/2011/11/07/opinion/etzioni-gps/. These radio waves can be tracked with GPS locators based on the radio frequency they operate on. If you have ever took your pet to the vet's office to be micro chipped, then you understand this technology can also be read with a wand that is waved over the chip, similar to a barcode reader.
Another aspect of GPS trackers is the communication processes that include wireless local area networks. Usually, this term is familiar to individuals who have set up a wireless router in their home, so they understand that the wireless reach is limited. Once the range is maxed out, the signal can be lost and you have to backtrack in order to get the service once again.
While all of these have a different part to play in GPS, they all work together to help you as an individual locate their current location, even if they're not sure themselves. By giving the person a picture of their surroundings, they will be able to find the quickest way home or whatever their desired destination is. When you're on the road, your location is constantly updating with these units, so that your maps and instructions are always on time. If you've taken a cross country trip using GPS, then you understand how this works. Some technology is built into cars as well, so you can call for assistance after an accident and they can locate your vehicle right away.
Now that you know the basics of how GPS works, find out which unit works best for your needs and start shopping around today.