so this happened last weekend and i'm still kind of thinking about it. was flying out over this reservoir near my house, probably 400 meters out and maybe 80 feet up, totally calm day, and the signal just dropped. not like a gradual thing, it just went from full bars to nothing in like a second. the bird went into RTH automatically which is exactly what its supposed to do and it came back fine, landed about 3 feet from where i took off which honestly impressed me. but in those like 45 seconds i was just standing there watching it fly back i was thinking about every video ive ever seen of drones going into the water and doing the math on what a replacement would cost me.

checked the logs afterward and couldnt really figure out what happened, there was some 2.4ghz interference noted but nothing that explained a full dropout like that. anyone else had sudden signal loss over water specifically? i wonder if there's some reflection thing happening with the surface

water is genuinely one of the worst environments for signal, the surface reflection messes with the radio waves in ways that are hard to predict. ive heard people say flying lower over water actually helps in some cases because you avoid the reflected interference bouncing back up but honestly ive never tested that myself. glad it came back safe though, RTH working correctly is always a relief when it actually matters

yeah the 2.4ghz interference over water is a real thing, especially if there are any other boats or equipment around running on similar frequencies. one thing that helped me was switching to 5.8ghz manually before flying over open water - shorter range technically but way more stable in my experience when theres a lot of potential interference. your controller should let you set it manually instead of leaving it on auto. might be worth trying next time, though sounds like the Air 2S handled it perfectly which is honestly the whole point of RTH