Today I felt more brave and took the P3P out 3000 feet. I had full signal and then it instantly cut out for about a second. It came back as weak, but an improved to full again as I was still flying away. I realize I had just crossed over a large powerline and there was a cell tower probably 1000 feet away. Became nervous briefly but when I came back to full strength I felt good about continuing. Snapped a few nice pictures of our church from above while I was at it. I downsized a 4K video to 1080 P for my dad as well. This is going to be a very fun hobby!