Why do my GPS points vary about 200 metres to locations on the map?
Your GPS could be set to either GDA/WGS or AGD datum and then using the alternate datum from another source. The approximate difference between the AGD and GDA datum can vary by as much as 200 meters in the north eastly direction. GDA replaced the Australian Geodetic Datum (AGD) which has been in place since 1966. Ensure your GPS receiver is set to the correct horizontal datum GDA or WGS84.
Related Questions
- I loaded my map, with the Points of Interest (POIs), from MapSend. Why do I see no Points of Interest on the GPS unit’s map screen?
- Where are all the Joe Jackson points of interests in Greenville and their corresponding map locations??
- Why do my GPS points vary about 200 metres to locations on the map?
