Wireless Telegraphy and Telephony
Forfatter: Alfred P. Morgan
År: 1917
Forlag: The Norman W. Henley Publishing Company
Sted: New York
Udgave: Third Edition, Fully Illustrated
Sider: 33
UDK: 621.396.1 Mor
A practical Treatise on Wireless Telegraphy and Telephony, giving Complete and Detailed Explanations of the Theory and Practice of Modern Radio Apparatus and its Present Day Applications, together with a chapter on the possibilities of its Future Development
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TABLE OF CONTENTS
CHAPTER I
PAGES
Introductory: The Principles of Wireless Transmission and
Reception: Ether; Electromagnetic Waves; How Waves
Are Created; High-frequency Oscillations; Transmitting
and Receiving Apparatus________________________i-ii
CHAPTER II
The Means for Radiating and Intercepting Electric Waves;
The Effect of Intervening Country Upon Electric Waves;
Effects of Locality; “Static”; Lightning and What It Is;
Aerial Masts; Types of Aerials; Directive Action of
Aerials; Insulation of the Aerial; Earth Connections . 12-26
CHAPTER III
The Transmitting Apparatus; Current Supply; Magnetic In-
duction ; Magnetic Fields; The Induction Coil: The In-
terrupter; Electrolytic Interrupters; Open Core Trans-
formers; Closed Core Transformers; Direct Current; Al-
ternating Current; Oscillation Condensers; The Helix;
Spark Gaps; Rotary Gaps; Quenched Gaps; Aerial
Switches; Anchor Gaps; Keys____________________27-47
CHAPTER IV
The Receiving Apparatus; The Detector; Telephone Receiv-
ers; How Electric Waves Affect the Receiving Apparatus;