Telegraph Transmitter

telegraph transmitter

[′tel·ə‚graf tranz‚mid·ər]
(electricity)
A device that controls an electric power source in order to form telegraph signals.

Telegraph Transmitter

 

(Russian, telegrafnyi peredatchik), a device designed to generate telegraph signals and transmit the signals to a communications channel. The signals consist of current pulses, combined in such a way as to transmit characters in accordance with a telegraph code. The telegraph transmitter is a fundamental component of modern start-stop printing telegraphs.

A transmitter consists of a keyboard similar to that of a typewriter, an encoder, a distributor, and several auxiliary devices. Pressing down a key on the keyboard transfers the transmitted character to the encoder and the distributor, where the character is converted to a combination of elementary signals of a telegraph code. The signals, the distinguishing feature of which is the presence or absence of current, are then transmitted to a communications channel.

References in periodicals archive ?
From reforming England's public education to inspiring the modern Olympics and Harry Potter, from being a major player in the development of the jet engine to becoming a home to the world's most powerful telegraph transmitter as well as the first international telephone call, this town in the heart of England is the king of Britain's towns.
Spanish civil engineer Leonardo Torres Quevedo invented a 'telekino' - sending messages via a wireless telegraph transmitter - that could manoeuvre a boat from a mile away.
It was turned into a telegraph station in 1907 and the British government deployed a small military guard there in 1916 to protect the telegraph transmitter.
Digitize, Inc., of Lake Hopatcong, New Jersey, has introduced a 16-zone transmitter to its telegraph transmitter line.
The unusual museum is filled with fascinating things, from replicas of Bell's harmonic telegraph transmitter (the original produced the first sound transmitted by phone on June 2, 1875) and his tuned reed receiver (the original received the first intelligible speech transmitted by phone on March 10, 1876), to a switchboard used by the Shaniko Hotel in Eastern Oregon from 1907 to 1947.
The invention which would revolutionise life came about while Edison was working to improve the efficiency of a telegraph transmitter.
A World War II telegraph transmitter can also be seen by visitors.