The term Wireless Telegraphy is a historic term rarely used today except as applied to early radio telegraph communications. Wireless telegraphy originated as a term to describe electrical signaling without the electric wires to connect the end points. The intent was to distinguish it from the conventional electric telegraph signaling of the day that required wire connection between the end points. The term was initially applied to a variety of competing technologies to communicate messages encoded as symbols, without wires around the turn of the twentieth century with radio emerging as the most significant. These other competing wireless telegraphy technologies are interesting, but pale in significance. Wireless telegraphy rapidly came to be synonymous with Morse Code transmitted with electromagnetic waves decades before it came to be associated with the term
radio. Wireless telegraphy is rarely used today except by
amateur radio hobbiests where it commonly referred to as
continuous wave (CW) radio telegraphy, or just CW.
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