TM 11-655: Fundamentals of Telegraphy (Teletypewriter)

TM 11-655 Fundamentals of Telegraphy (Teletypewriter)

TM 11-655

Fundamentals of Telegraphy (Teletypewriter)

Army · TM · May 1954 · 104 pages

About

Section I . DEVELOPMENT AND DESCRIPTION 1. General Early methods of communication seem prim itive when compared with present day systems. These early methods included signaling audibly by gunfire, drums, and other loud noises, and visually by lights, smoke, flags, and semaphores. It was through their use that code signaling was developed ; code communication is still in use in all systems of telegraphy. 2. Manual Telegraphy Telegraphy is a method of transmitting and receiving signals by means of groups of elec trical impulses in accordance with a previously adopted code. A letter is first converted into signals of a code. The electrical impulses cor responding to the code signals are transmitted to the receiving station. At the receiving sta tion, the impulses are decoded and recorded. a. Developrnent of the Morse Telegraph.

DesignationTM 11-655

EditionMay 1954

StatusSuperseded

Pages104

FunctionComms Signal

CollectionHistoric

Public domain (U.S. Government work)

References 31

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