TomTom explains working of GPS Portable Navigation Device

|
Added in: Features

TomTom India has provides us with Infographic on working of a GPS Portable Navigation Device (PND). Here is what they have to say:-

GPS Navigation consists of 2 basic elements:

  • GPS receiver in your PND
  • Satellites in space

tomtom gps

24 satellites are circling the Earth in 6 orbital paths. These orbits have been choreographed so that any GPS receiver on earth always gets a signal from at least 4 satellites, at any given point of time.

tomtom gps

GPS receiver in your PND has to know 2 things:

  • The location of at least 4 satellites above you
  • The distance between you and each of those satellites

tomtom gps

  • GPS receiver picks up signal (transmitting low power radio signals, travelling by ‘line of sight’) from the satellites to work out current location
  • Signals pass though clouds, glass and plastic but usually not through solid objects, like buildings

tomtom gps

tomtom gps

Leave a Reply

Your email address will not be published. Required fields are marked *