Did a quick test to get a level set for distance before installing my ARGtek upgrade. This was done in an open corn field, in an area where it could be retrieved if problems arose. No mods, totally stock. Went out at 230' elevation, winds were up around 25mph from the west. Ran 10,210 feet (3.11km, 1.92mi), before I lost video & connection and hit GoHome. I got video back at about 6500' and full connectivity at about 4800' (weird that I had better connectivity going then coming home). Very pleasantly surprised by the results.