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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... coast guard, navy, and army engineers, who maintained contact with towns isolated by the flood waters, conveying information about the needs for medical supplies, food, shelter, and rescues. It was an amateur who helped develop the ...
... coast of Mexico. We sail with a seventeen-year-old ham on a roundthe-world cruise and visit isolated Pitcairn Island. We trace the concept of relays—the basis for the name of their association, the American Radio Relay League—from ...
... coastal stations contacting ships. A few worked in conjunction with lightships, which were among the first vessels to be equipped with wireless by which they could contact and convey information to ships (providing the ships had ...
... LV 66, equipped with a radio. Note the antenna (courtesy United States Coast Guard Historian's O‡ce Photo Collection). “Carried ashore with feet crushed and frostbitten, Mr. Harold Bride. 14 The World of Ham Radio, ¡90¡–¡950.
... coast of southern New England. The wireless operator, A.H. Ginman, awaits dawn; all he can hear is “the distant pounding of the breakers, the wind singing through the wires overhead, and the steady, uninteresting click, click of the ...
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 |