考試時會要求使用不可塗改的黑筆標記與作答，故擦擦筆和鉛筆作答都不算分。因此特別是寫作平時要練習使用黑筆作答 My suspicion is that because the OSD chip in the FC effectively receives a different signal than the camera sent (because of a difference hinein potential between the two grounds*), it can miss sync pulses, and the OSD will appear as slight noise hinein the final image instead. T... https://sd-b221738.fitnell.com/74837600/alles-über-ösd-證書-b2