This 24-page document discusses the history of telegraphy. It was written in 2018 by Jose Radin L. Garduque and covers topics such as the development of telegraph codes, undersea telegraph cables, wireless telegraphy using Morse code, and the transition to wireless communication technologies. The document provides a comprehensive overview of the technology and use of telegraph systems from their origins to modern times.

1. BCN(Broad. Comm. Notes)
-Telegraphy-
1
by:
Jose Radin L. Garduque
__________2018__________

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