I'm having troubles in reading AOB sometimes. It feels like I'm missing numbers in the center ring (Zielkurswinkel) after 90 to the left side. I'm usually lost when my counted horizontal marks for AOB are bigger than center ring (Zielkurswinkel) can show.
I know when ship is heading away from my boat I have to substract discovered angle from 180. And I do so successfully, but sometimes it seems I can't get the correct numbers for AOB
