On my final flight yesterday to capture a nice sunset I lost my P2V. It flew overhead from east to west and I could see the solid green lght on the backside. I was at about 250 feet. Plenty of room to clear the trees around me. I lost visual and the wifi signal so I triggered RTH. I glanced at my LG 8.3 tablet (running the Litchi app) and had a warning that the GPS signal was lost. First time this has happened. I know approximately where the bird is and it's going to be difficult to get to but I'll try. My flight path took me over some high power lines from a sub station. I wonder if that caused the lose of GPS. I probably cleared them by 50+ ft.