Morse code, often referred to as continuous wave (CW) in radio circles, has been gradually falling out of use for a long time now. At least in the United States, ham radio licensees don’t have to ...
Many think "SOS" stands for "save our souls" or "save our ship," but it actually doesn't stand for anything. SOS is a Morse Code distress signal. Morse Code is a system that uses dots, dashes and ...