To collect GPS data automatically with a form submission, see Automatic GPS Capture https://dimagi.atlassian.net/wiki/x/ZynKfw. For troubleshooting, see GPS Limitations.
...
GPS data in CommCare is captured in decimal degrees. It has 4 components, separated by a space character:
Latitude: in decimal degrees
Longitude: in decimal degrees
Elevation: in metres, and
Precision / Accuracy: in metres
For example, a data point collected in CommCare and viewed through form data may look something like 25.615311244889146 85.08323017699811 28.44 20.0, where:
25.615311244889146 specifies the latitude in decimal degrees
85.08323017699811 specifies the longitude in decimal degrees
28.44 specifies the elevation in metres, and
20.0 specifies the precision in metres.
Mapping the Data
GPS data in CommCare is captured in decimal degrees. It is easy to make a map using Google Earth.
...
Speed and accuracy of getting a GPS lock is highly variable. For example, the S10 has relatively good GPS hardware, including GLONASS and A-GPS support. However, it will still have issues when surrounded by concrete and getting a satellite lock will take longer when outside of cell network data coverage. It's not possible to "boost" the signal. However, you can ensure that your GPS unit is at the very least always "warm" and thereby reduce the acquisition time. For example, running something like Google's "MyTracks" app set to record the GPS location every 15 or 30 minutes should minimally impact the battery life but keep GPS should remain warm (Simply running MyTracks in the background is enough, it is not necessary to have it open all the time).