I have been flying my Mavic 3 in the neighborhood and noticed that between 1 and 2 miles I start getting a yellow text warning saying the signal interference is present. I was alarmed, so I returned to base immediately. The drone was not in the line of sight (trees and other obstacles were between us). The drone was about 300 ft in altitude and flying at approximately 40 miles/hour (max speed). The specifications of the O3+ transmission say 15 km, and the drone has a theoretical 30 km distance capability. What is your experience in real life, and how far did you fly away from base? How to extend the range? (fly higher, for example?)