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Comment Re:Does it give you a position on the globe? (Score 1) 298

No, the GPS "system" gives you coordinates. It has nothing to do with a map and the map is entirely optional.

For navigational purposes, it's a necessary option, but it's not a component of the system. The system is the satellite constellation, radio protocols, and associated algorithms. The system's output is your coordinate information - which as I said on it's own means nothing. You need a map to coordinate with, or another set of coordinates to do relational comparisons.

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