For me, the Anafi works best on the 5.8ghz channel 157 and switch on airplane mode. I live in suburban Chicago with a lot of wifi interference around. I routinely get about 2000 to 2500 feet in residential areas and about 4500 to 5000 feet in low (more rural/farmland) wifi interference areas. However, I rarely fly more than 1,500 to 2,000 feet away, as I am using the drone for photography and video purposes. I like to see the drone when flying as much as possible. To me, distance is not my thing, but a solid signal/link between the controller and the drone is most important. The Anafi does that well for me, as long as I don't stretch the distance too much.