Flew my first night flight went good until last minutes. Was testing DBS mod in a high interference area (I'm guessing).. When returning home I took control near home point. Took it back up for last photo when I I touched land now by accident. Canceled that hit rth button. Then she Spiraled straight down into the Hudson River SMH!!!!!! So my ???? Is gps/compass on phantom messed up? Prior to flight compass was abnormal/ R/C channel was poor/good never GOOD... Was it my mistake to fly in that area / did I mess up by hitting two different land commands after each other? DBS mod mess with r/c reception??? I flew past my stock record btw prior. In nyc it's just bad interference even by the river!!!! Any info would be great as I plan on getting another phantom thanks in advance.!.!