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.

Through the crackle and fuzz of long-distance radio, Karl Thompson easily translated the steady dit-dah, dit-dah, dit-dah of Morse Code from across the Atlantic. Thompson, operating amateur ...

More than 150 listeners across the U.S., Italy, France and Japan huddled by their radio to decipher a series of Morse Code transmitted by the Maritime Radio Historical Society.

Aviators also use Morse code to identify automated navigational aids. These are radio beacons that help pilots follow routes, traveling from one transmitter to the next on aeronautical charts.

Blinking Morse Because its signals are so simple – on or off, long or short – Morse code can also be used by flashing lights. Many navies around the world use blinker lights to communicate from ship ...

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 ...