Viking is a free/open source program to manage GPS data
GPS log file viewer and analyzer
GPS track editor for editing tracks and planning (multiple) day tours
Sight Reduction for Air Navigation with Python
Korean Spatial DBMS Driver
The full-featured, easy-to-use desktop GIS with real processing power!
Land survey field crew data management for .RAW and .JOB file types.
Create cartographic map frames from an XML template
Automate merging / importing of country data from different sources
Lowrance Navico BR24 Radar Network Protocol Implementation