A report on Telegraph key, Morse code and Electrical telegraph
A telegraph key is a specialized electrical switch used by a trained operator to transmit text messages in Morse code in a telegraphy system.- Telegraph key
Keys are used in all forms of electrical telegraph systems, including landline (also called wire) telegraphy and "wireless" and radio (also called wireless) telegraphy.- Telegraph key
Morse code is named after Samuel Morse, one of the inventors of the telegraph.- Morse code
At the sending station, an operator would tap on a switch called a telegraph key, spelling out text messages in Morse code.- Electrical telegraph
Although the traditional telegraph key (straight key) is still used by some amateurs, the use of mechanical semi-automatic keyers (known as "bugs") and of fully automatic electronic keyers is prevalent today.- Morse code
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Wireless telegraphy0 links
Wireless telegraphy or radiotelegraphy is transmission of telegraph signals by radio waves.
In radiotelegraphy, information is transmitted by pulses of radio waves of two different lengths called "dots" and "dashes", which spell out text messages, usually in Morse code.
In a manual system, the sending operator taps on a switch called a telegraph key which turns the transmitter on and off, producing the pulses of radio waves.