Included in the package is a sample client called xgps. It connects to a gpsd at any host you tell it to, and requests raw data, so that it can display the current location of all visible GPS satellites your receiver 'sees'.

[image] The GPS receiver has no fix yet.

The GPS receiver has not yet acquired a fix. The receiver has not tracked the grey satellites, but knows where they should be.

The next image shows a good fix. A 3d fix provides latitude, longitude as well as altitude data, and requires at least four good satellites. A 2d fix does not give altitude, but only requires 3 satellites.

[image] The GPS receiver has a good 3d fix.

Depending on your GPS receiver, the additional satellites may be used to determine location with better accuracy.