Hi to everyone, I found this discussion very useful, even if I have a question: How I have to set my suunto watch? Considering the GPS altitude that in my location is of 80 meters + 40 meters(geoid height) or the altitude given by internet for my lat\lon that it is of 80 meters ?? And which reference use my watch altimeter, the elipsoid height or orthometric height ? thank you very much! For more details, read here: http://www.esri.com/news/arcuser/0703/geoid1of3.html
