GPS satellites provide GPS services. They can be used by both the civilians and the military for navigation purposes. Navstar is the network of U.S satellites providing this service. Here are some interesting characteristics of GPS satellites.
1. The GPS satellites orbit Earth every 12 hours. They send a synchronized signal from each satellite. The satellites move in different directions, and the user gets a signal at various times. The receiver can calculate the whereabouts of the users once at least four satellites get in touch with the receiver.
2. GPS for civilian users were restricted before. From 2000, US President Bill Clinton authorized the broad availability of GPS systems for public use. Apart from navigating and provide live traffic updates, GPS now provides interesting applications such as tracking migrating birds or helping in rescue operations.
3. The GPS doesn’t signal at a high power at the beginning. It slowly spreads over a large area. The GPS signal can easily be interrupted due to electromagnetic noise.
These characteristics must be kept in mind. We cannot think of our lives without GPS now. Moving from one place to another hasn’t been easier before. Now you can reach your destination fast even if you don’t know the way using the GPS system. GPS shows you the way, and also calculates the best possible route for you so that you can reach your destination quickly. Modern GPS systems will tell you about real-time road enclosures, traffic information, etc. so that you can decide on an alternate route. In future, civilians will find many innovative uses of GPS satellites.