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The Garmin nüvi Pocket Guide, Second Edition by Jason D. O’Grady

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A GPS Primer

Before I get too far into the depths of the wonderful little device known as the Garmin nüvi, I think it’s appropriate to take a step back and take a look at the underlying technology. If you’re already an expert in GPS (Global Positioning System) or aren’t into a little background on the technology, I won’t be offended; just jump ahead to Chapter 1, where you meet the nüvi and can dive right in.

If you’re still with me, great! Having a solid understanding of the technology behind GPS will give you a better foundation for learning about the nüvi’s capabilities and limitations—and hey, maybe you can learn a thing or two. I start with some basics and then move on to a couple of more advanced topics.

The Basics

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