GPS

A good way to get involved in the OpenStreetMap project is to upload GNSS (GPS, Galileo or GLONASS) trace. Recorded by your satellite receiver or mobile phone, the typical track is a record of your location every second, or every meter. Convert it to GPX format if it wasn't done for you automatically. The collected data can be displayed as a background of thin lines or little dots within the map editor. These lines and dots can then be used to help you add map features (such as roads and footpaths), similar to tracing from aerial imagery.

	Record		Convert		Modify tracklog		Upload		Accuracy		GPS Reviews
Various aspects of GPS are discussed on the following pages: Recording GPS tracks – The basics of different types of device, and how to record a track Convert GPS tracks – A simple process that may be required before you can upload your recorded tracks Edit GPS tracks – For a variety of reasons, you may want to modify a GPX track log before uploading it. Upload GPS tracks – How to upload a GPS track using the website. Accuracy of GPS data – The accuracy of GPS data depends on many factors GPS Reviews – Thinking of getting a GPS Receiver to add data to OSM? These reviews are here to help