The World of Ham Radio, 1901-1950: A Social HistoryMcFarland, 28.01.2015 - 292 Seiten 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. |
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... miles apart to anywhere in the world. We note their valiant services, above any call of duty, in times of disaster. We read of the battles to maintain amateur rights in Congress and in the world at large. We are present at the creation ...
... miles apart. Then there was Professor Amos E. Dolbear, who in ¡882 conducted successful wireless trials. There were ... Mile Sending Outfit.”6 The common image of the experimenter in the early 20th century is of a boy standing on the ...
... miles from land. It communicated with ships coming and going and with a land station at Siasconset on the south shore of Nantucket Island.15 In step with the acceptance of wireless by the world's passenger liners, and many merchant ...
... miles away. These young “nerds” and “dorks” of the past century had found something to arouse envy and awe amongst ... miles southeast of the Nantucket Lightship, two hundred fifty miles from New York City.19 Captain Sealby called the ...
... miles by day, more at night. It was housed in a “Marconi house” on the boat deck, had a double antenna strung between both masts, 205 feet above the sea, and had two separate circuits plus reserve storage batteries in case of a power ...
Inhalt
1 | |
5 | |
2 Hiram Percy Maxim and the Relay Concept | 24 |
3 Amateurs During the First World War | 40 |
4 Amateurs Between War and Peace | 53 |
5 Surviving the Broadcast Revolution | 64 |
6 Relays DXing Strange Languages and Clubs | 80 |
7 Amateurs as Experimenters and Adventurers | 101 |
Phase Two | 169 |
Amateurs in Emergencies and Disasters | 181 |
19401945 | 200 |
19411950 | 211 |
Epilogue | 231 |
Appendix A Morse Code Alphabet | 237 |
Appendix B Q Signals and Other Abbreviations | 238 |
Appendix C Common Abbreviations in Amateur Morse Code | 240 |
8 The Olympics Worlds Fairs Trans Radio Press Service and
International Radio Conferences ... | 116 |
9 Adventurous Amateurs at Sea and in the Air | 130 |
The NC4 Byrd the Dolebirds the Lindberghs and Others | 140 |
Phase One | 154 |
Chapter Notes | 241 |
A Bibliographic Essay | 261 |
Index | 273 |
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The World of Ham Radio, 1901-1950: A Social History Richard A. Bartlett Keine Leseprobe verfügbar - 2015 |