OK.

My mistake. I thought it was humorous, because from what I've read the use of CQD was one of the problems. As i said, it feels weird laughing about such a disastrous event, but we also laugh only when to do otherwise would hurt.

One of the most complete radio logs of the RMS Titanic disaster is here. From what research I did on the Titanic back in middle or high school, the confusion was not caused by the use of both the CQD and SOS prosigns. Each receiver of the distress call successfully understood that the Titanic was reporting a distress call, but it seems that no one fully understood or believed the severity of the Titanic’s situation.

Yeah - I've read a lot of the logs. I agree - almost all the radiomen who had their radios on (Hello Carpathia....) understood these were a distress call. As said above, I don't think they thought she could really be going down THAT fast. I also think that some of the radiomen realized she was going down that fast, but could NOT convince their Captain - of if they could, they were just too far away to do anything