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Article: On Test - Sat-Nav devices - Streets ahead. If you could do with a bit of help finding places, satellite navigation might just be what you need. We compare the latest GPS devices.(Product/Service Evaluation)
- Article from:
- Computer Act!ve
- Article date:
- December 8, 2005
CopyrightCOPYRIGHT 2005 Incisive Media, published with the permission of Incisive Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Byline: Jonathan Parkyn.
Once upon a time, in-car satellite navigation was something you'd have only found on the dashboards of the most expensive luxury automobiles. But, like many technologies, GPS devices have plummeted in price and you can now pick up a complete product for as little as [pounds sterling]200 - even less if you shop around.
Satellite navigation (or sat-nav, for short) works by receiving signals from a network of satellites orbiting the Earth in order to triangulate your position, comparing this with a database of maps on the device and planning a route from A to B. Most also store data on local amenities such as petrol stations, cash ...