This is one of the many things Ron Howard’s Apollo 13 film depicted correctly, as opposed to how the tones were simulated on quite a few other TV shows and film

This is one of the many things Ron Howard’s Apollo 13 film depicted correctly, as opposed to how the tones were simulated on quite a few other TV shows and films about that era of space flight. For example, some of the more egregious depictions had the tones coming from astronaut transmissions, not the ground transmissions. Knowing this would have been a simple matter of research, but a lot of folks apparently didn’t do it.