I'm not sure why I'm having an issue, although not a serious issue, with Loss of Signal happening every now and then between 500ft and 1100ft in altitude (the highest I've been). I do have the Booster App. It doesn't seem to be an issue with horizontal distance, just altitude. I've also been keeping the top of the Wi-Fi booster on the transmitter about level with the ground, or 0 degrees when I'm flying and the antenna at a 90 degree angle. I'm not sure if that could be it. Every time LOS has occurred, I let the aircraft start to come home then take back over once she gets below or around 500 ft. Thanks in advance. J.