+x grahamb - 6/21/2019 7:37:49 PMYes, you need either the cellular version for its inbuilt GPS, or you need to use an external GPS such as the Garmin GLO, Dual XGPS, or PilotAware (which will also pass traffic data to SD as well as location.
+x grahamb - 6/21/2019 8:42:24 PMThis is probably best solved by you revisiting the detailed set-up documentation for PilotAware, which includes how to set up SkyDemon, then asking again on the PilotAware forum if you continue to have a problem.