hakan - Every NMEA sentence is saved in the KML file. You need to unzip the KMZ, but there is a XML comment with a millisecond counter (6 digit?), with a source letter - the internal n810 will have a, the BT has g - and the full NMEA text raw from the device. And the OBD if that is on. And I may add battery, ambient light, temp, iwlist scan output...