If you are a ham radio operator of a certain age, you probably remember ads for “The Instructograph,” a mechanical device for learning Morse code. [Our Own Devices] has an ancient specimen of the ...
When the first radios and telegraph lines were put into service, essentially the only way to communicate was to use Morse code. The first transmitters had extremely inefficient designs by today’s ...
Morse code, the language of the telegraph, is a system of communication that's composed of combinations of short and long tones that represent the letters of the alphabet. Morse code, the language of ...
“Calling all. This is our last cry before our eternal silence.” With that, in January 1997, the French coast guard transmitted its final message in Morse code. Ships in distress had radioed out dits ...
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