The World of Ham Radio, 1901-1950 - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The World of Ham Radio, 1901-1950 write by Richard A. Bartlett. This book was released on 2015-01-28. The World of Ham Radio, 1901-1950 available in PDF, EPUB and Kindle. During the first fifty years of the twentieth century, ham radio went from being an experiment to virtually an art form. Because of the few government restrictions and the low monetary investment required, the concept of ham radio appealed to various people. More than just a simple hobby, however, ham radio required its operators to understand radio theory, be able to trace a schematic and know how to build a transmitter and receiver with whatever material they might have available. With the advent of World War II and the increased need for cutting-edge communications, the United States government drew upon the knowledge and skill of these amateur ham radio operators. This book explores the history of ham radio operators, emphasizing their social history and their many contributions to the technological development of worldwide communications. It traces the concept of relays, including the American Radio Relay League, from contacts as close as 25 miles apart to operators anywhere in the world. The book highlights the part played by ham radio in many of the headline events of the half century, especially exploration and aviation "firsts". The ways in which these primarily amateur operators assisted in times of disaster including such events as the sinking of the Titanic and the 1937 Ohio River flood, are also examined.
Hello World: A Life in Ham Radio
Hello World: A Life in Ham Radio - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Hello World: A Life in Ham Radio write by Danny Gregory. This book was released on 2003-03. Hello World: A Life in Ham Radio available in PDF, EPUB and Kindle. To an outsider, the world of ham radio is one of basement transmitters, clunky microphones, Morse code, and crackly, possibly clandestine, worldwide communications, a world both mysterious and geeky. But the real story is a lot more interesting: indeed, there are more than two million operators worldwide, including people like Walter Cronkite and Priscilla Presley. Gandhi had a ham radio, as do Marlon Brando and Juan Carlos, king of Spain. Hello World takes us on a seventy-year odyssey through the world of ham radio. From 1927 until his death in 2001, operator Jerry Powell transmitted radio signals from his bedroom in Hackensack, New Jersey, touring the worlds most remote locations and communicating with people from Greenland to occupied Japan. Once he made contact with a fellow ham operator, he exchanged postcards known as QSLs cards with them. For seven decades, Powell collected hundreds of these cards, documenting his fascinating career in amateur radio and providing a dazzling graphic inventory of people and places far flung. This book is both an introduction to the fascinating world of ham and a visual feast for anyone interested in the universal language of graphic design.
Wireless Radio
Wireless Radio - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Wireless Radio write by Lewis Coe. This book was released on 2006-02-22. Wireless Radio available in PDF, EPUB and Kindle. In 1873 Scottish physicist James Clerk Maxwell first advanced the idea that there might be electromagnetic waves that were similar to light waves, a startling concept to the scientists of his day. About 13 years later, German physicist Heinrich Hertz demonstrated in his laboratory that electromagnetic radiation did indeed exist. But it was not until after Hertz's death that a young Italian named Guglielmo Marconi got the idea for a practical communications system based on Hertz's work. Marconi was surprised and disappointed that the Italian government was not interested in his newly discovered wireless communications system, and thus he took his equipment to England. From that point on, the wireless became identified with Britain. From these beginnings, wireless radio became the basis of a revolution that has resulted in the satellite communications of today. This history first looks at Marconi's invention and then explores its many applications, including marine radio, cellular telephones, police and military uses, television and radar. Radio collecting is also discussed, and brief biographies are provided for the major figures in the development and use of the wireless.
The Early Shortwave Stations
The Early Shortwave Stations - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Early Shortwave Stations write by Jerome S. Berg. This book was released on 2013-10-04. The Early Shortwave Stations available in PDF, EPUB and Kindle. In July 1923, less than three years after Westinghouse station KDKA signed on, company engineer Frank Conrad began regular simulcasting of its programs on a frequency in the newly-discovered shortwave range. It was an important event in a technological revolution that would make dependable worldwide radio communication possible for the first time. In subsequent years, countless stations in practically all countries followed suit, taking to shortwave to extend reception domestically or reach audiences thousands of miles away. Shortwave broadcasting would also have an important role in World War II and in the Cold War. In this, his fourth book on shortwave broadcast history, the author revisits the period of his earlier work, On the Short Waves, 1923-1945, and focuses on the stations that were on the air in those early days. The year-by-year account chronicles the birth and operation of the large international broadcasters, as well as the numerous smaller stations that were a great attraction to the DXers, or long-distance radio enthusiasts, of the time. With more than 100 illustrations and extensive notes, bibliography and index, the book is also a valuable starting point for further study and research.
The Global Wireless
The Global Wireless - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Global Wireless write by Maria Rikitianskaia. This book was released on 2024-05-17. The Global Wireless available in PDF, EPUB and Kindle.
