My RC has been upgraded to ITELITE. I used to get around 1k-2k range stock and then got around 5k range with my 3d printed parabolic range extender. My ITLITE is also about the same as the parabolic. However, today I went up to the rooftop deck at work and went out to 10k feet! Signals were strong the entire way. The only hiccup was when I turned the bird around it gave me a weak video transmission error but that went away. The RC connection was fine the entire time. I had around 50% of battery remaining when I got back so I could have pushed it a little more but didn't want to get caught in a bad headwind or something like that come back so I pulled back at 10k.