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Automotive GPS Helps Keeps You On Course

More than two dozen satellites orbiting Earth at about 12,660 miles are able to tell you where you are and which way to turn to get to where you are going. That may be over-simplifying the process, but essentially that is how automotive GPS works. Technically, it is the software in a GPS unit in your vehicle that reads the information transmitted from the satellites, that determines where you are located. Additionally, software storing pre-programmed information concerning locations that merges with your location to give you navigational directions to reach your destination.

Information from four or more satellites received at the same time by the automotive GPS unit in your vehicle, determines your current location. Most navigational units have the ability for the user to input specific geographic locations to help the unit determine where on the globe your car is located. Many vendors offer computer downloads for automotive GPS systems of various locations to enable turn-by-turn directions to be given to a set destination.

While most automotive GPS systems are accurate, pinpoint accuracy is not possible due to some variables such as weather or other conditions that may interfere with the signal getting through. An accuracy of three to 10 feet is typical for most automotive GPS units.

Keep Tabs On Vehicle If Stolen

Depending on the service you have for your automotive GPS unit, it is possible to locate your vehicle regardless of where it is located. If stolen, a quick check on your computer or with your GPS service provider can usually help locate the car. Many vehicles equipped with an automotive GPS tracking device are eligible for discounts on their insurance premiums.

One of the advantages of an automotive GPS unit is when you are traveling through new areas. Knowing where you are headed before you leave you can download information into your automotive GPS system and then rely on the unit's navigation system to help you if you get lost. Simply enter the location where you want to end and the system will show you how to get there.

While the information being sent from the satellites is free, paid for through taxpayer money, processing information received through units such as navigation systems and stolen car locator services, are typically charged by a vendor. Usually a monthly fee is assessed the amount depending on the services to which you subscribe.

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