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GPS navigational systems use the NAVSTAR satellites that were originally created for military purposes. GPS units use these satellites to calculate location and speed of cars and to create...
The satellites that are used for auto GPS systems are known as NavStar satellites and were originally launched in 1973 for military purposes. Today, they are used by car GPS systems to determine...
Comparing GPS units can be a challenge as you decide which GPS is best for your car. Here is a guide to help you compare car GPS units.
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