I wanted to take my drone higher then 400 Feet so I plugged my drone in my PC. Using the GUI that yuneec provided I changed the default from 91/122m to 200/300m. I felt safe doing this as the place I take it to is clear. Anyway using stock equipment I am consistently losing telemetry info when the drone goes past about 630 feet in altitude. Video feed is fine and I am still able to control it. Once that happened I brought the drone back down until I regained the telemetry info. My question is. Is this the expected behavior? I have read and seen some videos where the complaint was the antennae placement can block a signal. I am also debating about having the antennae mod done.