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Excerpt from A Study of Radio Signal Fading
As a typical example of fading, suppose that a radio laboratory at, Washington were listening to a station in Massachusetts. This station may call and be received with satisfactory intensity, may begin the, preamble of the message, and then, as the text is begun, the signals may rapidly increase in intensity, until within a few seconds they may be heard throughout an ordinary room. Then, as the transmission proceeds, the signals may become rapidly weaker until they are unreadable, or even entirely inandi ble by the time the end of the message is reached. By the time the station has finished the transmission of the message the signals may again be received at a satisfactory intensity. It can readily be seen that such an occurrence makes communication very diin cult and may occasion many repetitions of transmissions which, if the maximum intensity were maintained, could be received without difficulty at the first attempt.
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A Study of Radio Signal Fading (Classic Reprint)
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Paperback. Zustand: New. Print on Demand. This book details the collaborative investigation of several physicists and radio operators to better understand radio signal fading, an unpredictable phenomenon which results in the fluctuating intensity of radio signals, primarily those of high frequency. The investigation took place over a series of tests conducted between 1920 and 1921, primarily in the northeastern United States. The physicists and radio operators involved were able to analyze weather conditions and atmospheric conditions to form conclusions as to the causes of fading. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9780260603265_0
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