GPS is one of the finest, if not the finest navigation system ever offered to the general public. GPS itself has been around for a long time, and was a tool of the military, but ordinary GPS has been combined with modern mapping software to produce a stunningly effective user friendly navigation system that anyone can use.

GPS was more the province of the car driver or walker, but there are now dedicated motorcycle GPS systems available as well.

But what exactly is GPS and how does it work?

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