[Rostislav Persion] wrote a simple Morse Code decoder to run on his Arduino ... The other difficulty these decoders faced was detecting the signal in low signal-to-noise ratio environments ...

The use of SOS soon became universal, and the standard signal ruled the high seas until early 1999. Then, in an agreement engineered by the United Nations, Morse Code itself was officially retired ...

There’s a lot to learn from this 1966 Army training film about the International Morse Code ... likes to use an RD-60 code recorder, which immortalizes his signals in ink.

The signals were sent in Morse code from Poldhu, Cornwall, in England. Marconi later wrote about the experience: Shortly before midday I placed the single earphone to my ear and started listening.

honours the service and sacrifice of generations of Signals personnel," added Royal Australian Mint acting Chief Executive Officer Emily Martin. "Morse and binary code, subtly woven into the ...