Data that is gathered informally with crappy handheld equipment will always be of very poor quality. If you want to find out what, if anything, is out there th

Data that is gathered informally with crappy handheld equipment will always be of very poor quality. If you want to find out what, if anything, is out there then you need a systematic process of gathering data using calibrated equipment and a robust subsequent analysis of that data. We don't do astronomy by pointing our iPhones at the sky either.