Developments in GPS Navigation System

New developments in GPS navigation system technology like Differential GPS and Wide Area Augmentation System have made it possible to get precision down up to about three meters of a signal. When wide area augmentation system have made it possible in newer GPS navigation systems, the differential GPS needs extra equipment and is mainly used in navy by the US Coast Guard.

The wide application for GPS navigation system is in receivers that are small which can be carried in hand and mounted in a car. These small devices are generally used for directions, and have speakers that give spoken directions to avoid distractions by looking at a small map. But GPS users are daily finding new uses of this technology.

Lo-Jack was one of the most common uses of GPS before people started using handheld one. This was a chip fitted in a car that police stations can use to locate vehicles that are stolen. The Lo-Jack became also useful in finding other objects, living creatures especially.

GPS collars too are popular for wandering pets. So when little Willie can't be found, you can use a GPS signal to locate them. Missing children are located with popular software of cell phone that uses GPS signal to find them.

The handheld revolution is successful more because of iPod, which helps you to double the disk space of a hard drive without elevating physical measurements.

Thus you can observe, the GPS navigation system has many reasons for its success in recent years. And with steady and sharp increase in sales, the technology has become affordable and much more popular. By spending about $150 you can buy a good brand of GPS unit..