Up next in Driving & Car Safety (28 videos)
Stay safe on the road with the important information in this car and driver video series.
You Will Need
- Reasons for using GPS
- GPS device functions
- Test units
Consider GPS use
Consider how often you'll use your unit and in what capacity. For occasional use, such as geocaching, you won't need too many waypoints, or tracks, for your GPS. An avid hunter or fisherman, or someone who wants to mark spots along a set route will need a GPS unit with more storage and functions.
Decide how advanced GPS should be
Decide how advanced your unit needs to be. Most every GPS can track waypoints so you can see where you have been. Less expensive units will backtrack manually. More advanced, and more expensive, devices have a trackback feature, which allows you follow your original route in reverse.
Select the functions you'll need. Available features may include additional hardware for expanded memory; varying degrees of water resistance; fixed versus expandable memory; and varying levels of resolution and reception, battery size and life, and the unit's weight.
Consider system with multi-parellel channels
Consider a system that has multi-parallel channels. The additional satellite signals can increase accuracy to nearly a pinpoint level. Such a receiver may increase the overall size of the unit.
Test the demonstration units set up in stores. Compare prices and models to find out which system you’re most comfortable with; a highly-specialized system will cost more than a multipurpose one.