problem with these little drones is there is no RTH feature. So once you loose sight and probably can't even hear
Tello you have to rely on the FPV stream.
But things look very different from 30m above, its blurry & shaky video and you can't direct the camera down to identify your spot. So you have to rely on landmarks further away.
Tello is IMO just the wrong drone for this kind of stuff. For reliable and safe high altitude flights you need GPS, otherwise you need luck.
My bebop 2 can do 150m, and get higher if I want to using a hack. But honestly its boring to fly up there. The only time i use this is to fly up on a hill.
The picture quality of this tiny drone is really exceptional. Not as good as the Dobby but better than my Bebop 2, which has other merrits. I bought one
Tello for the kids but will buy another one for myself
I tried the
Tello with the famous Xiaomi Nano Youth router with Mimo antennas as a range extender. This one can do wonders on the Bebop 2, range over open water is well above 3km, but the Bebop has Mimo antennas, too, and way more transmit power. I guess the
Tello will be good for about 300-500m, so far I only tested up to 200m with full signal strength.
One final thing:
Even if
Tello is a tiny toy I suggest not to fly above a highways. While tiny
Tello would not do serious damage or injury even if it fell on someones head, just the impact on a windshield can scare someone and lead to serious accident. I know, I sound like an old fart but seriousy this is ****...
