What Is a Portable GPS?
Although any small global positioning system could be referred to as a portable GPS, the term generally refers to those units which give driving directions and are meant to be mounted in cars. Others, used for outdoor activities, are generally referred to as handheld GPS units. Still, there could be some times when the terms are confused and a portable GPS and handheld GPS are synonymous. The advantages of a portable GPS are numerous. Many drivers appreciate the turn-by-turn directions offered through a portable GPS. It saves the hassle of referring to a map for every turn. Further, many offer voice instructions, allowing the driver to keep eyes focused on the road. Portable GPS systems work by receiving a signal from satellite to determine where they are on Earth. That signal is then pinpointed on preloaded road maps that help provide directions. From there, after a destination point has been entered into the map, it is simply a matter of following those directions. Most portable GPS
