A GPS Receiver Lets You Run SatNav On Your Carputer

A GPS receiver plus suitable software, are the two components you need to implement satellite navigation on your carputer. The receiver simply plugs into a socket in your car PC. The software converts the raw data from the satellite signals to more meaningful information and shows your position on a map on the display screen.

GPS Receiver

USB GPS Mouse


Various types of receiver (or mouse, as this is normally known), are available. Most manufacturers offer a mouse with a serial, USB, or bluetooth interface. I recommend you choose a USB model. This will still use the serial protocol, but will have a software serial port emulator supplied to allow you to plug into a USB port. At some point, you may want to use your GPS mouse along with a laptop or handheld PC, and it is very rare to find a serial port on modern laptops. A GPS mouse gives you the best portable GPS solution for flexibility.

It is essential to check the GPS mouse has an NMEA interface (National Marine Electronics Association). Although this interface is an industry standard, some manufacturers also offer models with their own proprietory interface, which may not work with all GPS software.

Software

If you are using a front end such as Centrafuse, then your car GPS software needs are already taken care of. The navigation version of Centrafuse has Sat Nav software included in the package.

Otherwise, there is a choice of software you can buy, such as

  • Co-Pilot Laptop
  • MS Autoroute (Europe)
  • MS Streets & Trips (USA)
  • IGuidance
  • PC Navigator

If you're working to a tight budget, there is some free GPS software available. In my opinion, GPSS is the pick of the bunch and it costs you nothing to give it a try. The maps are limited however, and if you want greater detail, you will have to source your own more detailed maps.







Navstar Satellite Orbit

How GPS works
SatNav Mapping Van


See how SatNav maps are made.
Galileo Logo


Alternative GPS Systems
How Trilateration Works

Trilateration - the principle behind the calculation of GPS map co-ordinates


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