i tried to fly in a canyon without GPS signal. Copter went in ATTI mode, but i could not fly higher than 4m!Why that?
"indoor flight mode" is activated, obstacle detection is OFF
Outside the canyon with GPS signal everything was fine again!Are there any options to fly higher without GPS?
Thanks for answers, Tom

Hi. I'm sorry for the inconvenience that this caused you. However, you'll need to have a GPS signal when you're in ATTI mode to guide the drone just in case. I highly recommend you to fly your drone with sufficient GPS signal. Thank you.

That's a Security Feature so you wont lose your Drone.

"Are there any options to fly higher without GPS?"

Just one: You have to start WITH GPS and fly it IN the no GPS Zone.
And will have to fight atti mode, then.
I would not like to try that in a canyon, methinks ;-)

thanks for answers.

Height is limited to about 18 feet when there is no GPS signal... Scary to think that you could fly down into a canyon, lose GPS and not be able to fly back up and out.