Study Notes on Radio History and Technologies
Radio and Recorded Music
Radio History, Part 1
Overview of Radio as a Medium
Radio represented a completely different medium compared to previous forms of communication.
The discussion focuses on five innovations that distinguished radio from other mediums at the time.
These five characteristics established foundational features of radio that continue to influence media today, despite occurring over 80, 90, or more than 100 years ago.
First Innovation: The Technology/ies of Radio
Radio was not the result of a single innovation but was built upon and integrated various previous technologies and ideas.
Reference is made to the “Radio Dates” file available on Canvas, which provides historical context around radio development.
At least four different technologies contributed to the foundation of radio:
The Telegraph (1844)
Invented to communicate via Morse Code which allowed for long-distance messaging.
International Morse Code:
A dot lasts one time unit.
A dash lasts three time units.
The space between components of the same letter lasts one time unit.
The space between different letters lasts three time units.
The space between two words lasts seven time units.
Significant in the establishment of telegraphic communication systems, including the Atlantic Telegraph cables.
The Telephone (1876)
Invented by Alexander Graham Bell, revolutionizing voice communication.
Key players involved included companies like the American Telephone and Telegraph Company, which handled both local and long-distance phone services.
Wireless Telegraphy (1901)
Innovated by Guglielmo Marconi, establishing the first successful wireless communication across the Atlantic and Pacific oceans.
The Marconi Wireless Telegraph Company of America facilitated universal communication with ships at sea, creating a public message service.
Reduced rates for communication were emphasized for international exchanges between America, Great Britain, Japan, Hawaii, and Alaska.
The company operated offices in New York, including a school for operator training.
Wireless Telephony (1906)
An advancement beyond wireless telegraphy, where Lewis Howard Latimer played a significant role.
Latimer significantly contributed to inventions involving both the telephone and filament for light bulbs, demonstrating his pivotal role in electrical and communication technology.
He is notable for writing the first book on electric lighting, linking the innovations in communication with advancements in lighting technology.
Government Interest and Regulations
The U.S. government expressed concern over radio technology, particularly its military applications during World War I.
Private radio use was banned during the war, indicating apprehensions over national security.
Research and Development (R&D) in radio technology advanced significantly during this period.
Reference: G. Myre’s article, "From Wristwatches To Radio, How World War I Ushered In The Modern World,” NPR.org, April 2, 2017.
Company Interests and Concerns
Anticipating the implications of radio technology, the government monitored companies like Western Union and Marconi Wireless Telegraph Company due to their potential influence and control over communication.
The U.S. government authorized certain companies to form a “patents trust,” creating a collective management approach to control intellectual property in the early radio industry.
Radio Corporation of America (RCA), established in 1919, became a pivotal player in controlling radio technology development.
RCA owned two national radio networks at its peak, showcasing its dominance in the industry.
It is argued that RCA hindered the progress of technologies they did not control, particularly FM radio and television advancements targeted by inventor Edwin Armstrong.
Transition to Further Innovations
The discourse will continue to address the second innovation of radio in subsequent discussions.