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What's The Difference Between GPS And Sat Nav?

What's The Difference Between GPS And Sat Nav?

Each the words GPS and Sat Nav have gradually crept into everyday use. They are are often used interchangeably. Is there a difference between them and if so, what's the difference?

Firstly, CANAL GEOMATICS sure there's a difference.

GPS is short for Global Positioning System. It's the collective name for a bunch of satellites which might be in orbit across the Earth. They were positioned there by the US Authorities decades ago and made publicly available during the administration of President Reagan.

Using a GPS receiver (a small machine that may send and obtain signals from any satellite within range) you may get your precise location. This location is supplied as a set of co-ordinates.

Using this data and the co-ordinates of your vacation spot, many GPS receivers can 'information' you to the destination using a compass-like arrow. In theory, you probably have the GPS co-ordinates of your house, using a GPS receiver you will discover your approach dwelling from even the remotest place within the world.

The GPS receiver has change into a typical item that's fitted to many devices, equivalent to your mobile phone or the security system in your car. Many smartphones, such because the iPhone, have a GPS constructed-in. If allowed, applications can use this info to direct you to, say, the closest Italian restaurant. Some digital cameras also have a GPS. They will use it file exactly the place the photo was taken.

A sat nav (brief for satellite navigation) is really some very special software that uses the GPS signal. It takes the co-ordinates offered by the GPS and combines that with a comprehensive map. Then, given a vacation spot, the sat nav software will calculate a route so that you can your destination. As the GPS signal is continually up to date, the sat nav may give you step-by-step instructions on where you might be and when it's worthwhile to make a turn.
   

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