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GPX Editor

Portable GPX file editor with powerful features and support for data importing (from NMEA, NGT,

GPS editor that helps you build and edit Google Earth maps by inserting waypoints and

A simple Java-based software utility that calculates the changes in the Earth’s atmosphere using altitude,

Get to know exactly when the sung gets up and when it sets, as well

Perform GPS analysis, manage your Points of Interest and view various measurements, statistics or maps