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The World of Ham Radio, 1901-1950 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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Bartlett, Richard A. 作者

McFarland & Co Inc Pub

译者

2007-8 出版日期

281 页数

$ 62.15 价格

HRD

丛书系列

9780786429660 图书编码

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The World of Ham Radio, 1901-1950 在线电子书 epub 下载 mobi 下载 pdf 下载 txt 下载 2024

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The World of Ham Radio, 1901-1950 在线电子书 pdf 下载 txt下载 epub 下载 mobi 在线电子书下载

The World of Ham Radio, 1901-1950 在线电子书图书描述

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 headlined 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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