A Brief Introduction to GPS

Global Positioning Systems (GPS) are growing inunit. You can choose from an enormous range of
rapidly popularity and are becoming an everydayGarmin units that are on sale in retail stores and
navigational tool. You commonly see GPS installedonline. These Garmin GPS units range not only in
in a vehicle but it is also available in a hand helpfeatures but in color and size as well, so you are
form that is similar to size of a pocket PC or cellsure to find the unit that is perfect for you.
phone. GPS units have the ability to be loadedThose who are purchasing a GPS unit to aid while
with map data of any where in the world.they are hiking should go with a waterproof
A GPS uses a series of satellites to pinpoint yourdesign for when you are crossing rivers and to
exact location with amazing accuracy. There areprotect you if you were to get stuck in a storm.
more sophisticated systems that have the abilitySome models have different numbers of
to determine you position on the ground as wellwaypoints which is another word for terrestrial
as an altitude reading.coordinates such as latitude, longitude, and altitude.
GPS units have grown so much in popularity thatBasic waypoints are effective for the majority of
it forced the prices down to a reasonable amounthikers but you can always upgrade to a model
as long as you are looking for a basic unit thatthat offers more features.
provides you with your latitude and longitude. IfA popular Garmin GPS model for hikers is the
you want more features you can go with a moreeTrex because it is lightweight, waterproof, and
expensive sophisticated unit. Considering there ishas the ability to display up to five hundred
such a large range of options on a GPS unit needwaypoints. This device also features a number of
to determine what you will be using the systemcontrols on the side which gives you the ability to
for before purchasing.control the size of the display.
Garmin is the world's top manufacturer of GPS