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Excerpt from Some Quantitative Experiments in Long-Distance Radiotelegraphy
Throughout the experiments, both at Brant Rock and on ship board, shunted telephone readings Were taken on the incoming signals. The detectors used for the shunt readings were of the free wire electrolytic type and the head telephones connected in series were each of 600 ohms resistance,8 the shunt being placed across one of these according to the Fessenden method. The circuits for the galvanometer and for the shunt readings at Brant Rock are shown in Fig. 1.
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Some Quantitative Experiments in Long-Distance Radiotelegraphy
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Paperback. Zustand: New. Print on Demand. This book offers insightful results of long-distance radiotelegraphy experiments conducted by the U.S. Navy at the dawn of wireless communication technology. The author delves into the technical and scientific aspects of the tests, which were designed to determine signal strength over varying distances. Through meticulously recorded observations and analysis, the book unveils the relationship between signal intensity, antenna height, wave frequency, and distance. It explores the impact of atmospheric absorption on signal strength and provides a formula for calculating received signal strength under varying conditions. Notably, the research led to the discovery that the absorption of signals increased with distance and decreased with wave frequency, providing valuable insights into the behavior of radio waves in the early 20th century. 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 9781333771959_0
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