GPS Receivers output either a proprietary binary protocol or ascii NMEA.

Software packages

• Perl::GPS::NMEA

• gpsd - decodes raw NMEA and clients can request the current time, position, velocity, etc from a TCP port.
  • http://freshmeat.net/projects/gpsd/?highlight=GPS&topic_id=20

• GpsDrive
  • http://gpsdrive.kraftvoll.at/
  • Include gpsd with enhanced features
  • One of the nicest Linux based GPS mapping/navigation packages.

• jAugment also has a GPS monitor and map following service.

• Mapview is currently under development for Linux with raw NMEA sentence decoding and display of DEM, macAPRS and other map formats. Once finished it should provide APRS functionality with features more useful for wearable users.

FreemanPascal - This page should probably be reorganized soon to include categories (i.e. Applications, Utilities, Programming Language Support, etc.)