I managed to mess up the drill by drilling through both of them at once which wobbled the whole drill, giving me a wider hole than needed. I am just happy that it worked for me. The lesson? Drill out the holes into the holder and axle separately. I do not know why this happened,...
Future plans The collectd graphs show that when things are not so busy (from midnight till 5 in the morning, less than 100 aircraft seen) the percentage of received positions and the maximum distance increase. This leads to the thought that by dividing the antenna pattern in 4 areas and fe...