SPRINGFIELD - It is perhaps the most readily recognizable Morse code message. Dot-dot-dot, dash-dash-dash, dot-dot-dot. The three dots, dashes and dots mean SOS, or send help. But Samuel F.B. Morse's ...
In the modern world of smartphones and lightning fast internet, amateur (ham) radio operators still enjoy communicating over the radio by tapping telegraph keys just like the pioneers did in the ...
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