Learn about the GPS functions

GPS devices have a variety of features and options.

* Accuracy: most GPS devices will point your position within a radius of 15 meters (about 49.21 feet). If you need greater accuracy for differential GPS (DGPS), which calculates your location within 1 to 3 meters.
* Interface options: GPS devices come in a variety of sizes and can be monochrome or color. The large color screens cost a little more than devices with a monochrome screen. The color screens provide more detail, but use more battery power. When you look at the lists of items, evaluates the image, which the seller provides and make sure it looks like it will screen. When buying a car GPS device, look for touch-screen navigation, voice prompts for directions and a travel computer. They will help you keep your eyes on the road and the trip computer will tell you how much you need when driving from point A to point B.
* Plans: Most GPS devices include software with street maps of the United States. You can purchase additional software, for example, Mexican planes.
* Data storage: Many GPS devices come with built-in maps, but you can save even more if your device supports Secure Digital memory cards or CompactFlash. Mapping data not occupy much space and many units even come with a 128MB card.
* Combination GPS units: Standalone GPS devices work great for most people, but some personal digital assistants (PDAs) and two-way radios come with built-in functionality. If you need a PDA or a two-way radio, consider one of these hybrids.
* Weather resistance: as with all electronics, you’ll want to keep your GPS device from the water and try not to drop it. For a GPS device with a rugged design and weather resistant features if you plan to use it outdoors.

This entry was posted on Tuesday, January 26th, 2010 at 10:16 pm and is filed under Buyer's Guide GPS. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

Comments are closed.


Powered by Yahoo! Answers