====== Morse-coding Messages ====== | **Field** | Telecommunication | | **Went Obsolete** | 1999, when it was replaced by the Global Maritime Distress Safety System. | | **Made Obsolete By** | Modern technology that allowed transmission of data without error, and with much lower operator skill. | | **Knowledge Assumed** | Fluency with the code, listening to the signals, and the feel for it. | | **When useful** | Used extensively for emergency communications over amateur radio (ham radio). | Will always be used where simple, reliable, low-power radio communications are needed. Morse-code is still a standard method of sending a distress signal - SOS Now that Morse skills are optional, the Code is increasingly popular on the Amateur Bands simply for relaxation and enjoyment.