Right coordinates, wrong position ? Why latitude and longitude are never enough to accurately define your position. The en closed pdf document explains why and with the software you can do some calculations. Based on the EPSG database (www. epsg. org). QCoord is based on former CTransF. The new version corrects bugs and now also supports projec tions (Brit. Nat. Grid, Amersfoort, GK, UTM. .. ) software by Christian Grimsel.