Went out for first flight and followed checklist and it took 2 true to calibrate compass then green ready to go, "suspense" used autotake off, then started making squares and noticed it wandering so quickly lowered it from 15 feet and recalibrated compass, took off and a few minutes same thing, so I walked down the driveway 100' and recalibrated compass and took off, started practicing and says magnetic interference again. We are way out in country on a dead end road with a 800' driveway, no power lines but it could be iron deposits I guess but something that puzzles me if I had it pointed north it was fine and as I spun it around slow when it got to South yellow lights but as I spun it around to north green? Never moved just turned it 180 and I repeated this 5-6 times, I enjoyed getting practice but I only went up about 30' max, any ideas8