Global Positioning System (GPS) Guide
It is quite natural for you to be curious about your location when you are driving for a vacation or simply to meet a friend. Sometimes, it’s not easy to find location either with maps or compass. In such a situation your navigation could get simpler with the help of GPS (Global Positioning Systems).
GPS is more as the palm top in appearance and uses a network of 24 satellites and base stations to pinpoint your location down to the meters and in some cases even to centimeters. You can integrate the GPS system in your laptop computer, farm equipment, car, boat, aircraft, etc.
While purchasing a GPS system, check whether it has WAAS (Wide Area Augmentation System) support. WAAS uses the network of satellite and ground stations to provide signal corrections. WAAS support enables the GPS system to pinpoint accurate location to within three meters.
Another basic factor that you should consider before buying a GPS System is its capacity to store Waypoints. Waypoints are similar to map coordinates or in simple words, they are as if breadcrumb trails that help you to find your way back home. Normally the GPS Systems available in the market come with a capacity to store 500 Waypoints.
Go for a lightweight and handy GPS system. The GPS systems come with several screen options. The screens are for displaying vital information like maps, speedometers, compasses etc. Buy a GPS System with a high contrast and better resolution screen for better visibility. The screen with 106x104 should be ideal for you.
The GPS Systems are available in varying memory (1MB to 16MB RAM). The function of RAM is to store Waypoints, track points, routes and maps. Some GPS Systems have additional features like positions of Sun and Moon, time of Sunrise and Sunset etc. The GPS systems come with AA batteries. Choose a sturdy and rugged GPS System if you are an outdoor enthusiast.
Tip: For a GPS System look for WAAS support, screen resolution, number of waypoints, memory and size of the unit.
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