How to become a wireless operator
By: a practical presentation of the theory of electrial waves, their propagation, and their adaptation to wireless communication, including simple and clear instructions how to operate wireless devices and how to comply with government requirements for operators, by Charles B. Hayward ...
Publisher: American technical society
Published: 1918
Place of publication: Chicago
Language: eng
Number of pages: 298
Subjects: Telegraph, Wireless.
Table of contents: title: CONTENTS; title: Fundamentals of wireless telegraphy 1; title: Discovery of electric waves 1; title: Essentials of wireless method 3; title: Nature of waves 5; title: Elementary electrical principles 7; title: Static and current electricity 7; title: Potential 10; title: Conductors 10; title: Resistance 13; title: Ohm's law 17; title: Magnetism 21; title: Comparison of magnetism and current electricity 21; title: Magnetic attraction and repulsion 22; title: Electromagnets 24; title: Magnetic induction 26; title: Solenoid 28; title: Induction 29; title: Simple induction principle 29; title: Dynamo principle 31; title: Transformer principle 33; title: Mutual induction 33; title: Inductance, or self-induction 34; title: Generators 37; title: Elementary dynamo 37; title: Alternating-current generators 40; title: Factors influencing output 42; title: Phase and phase displacement 43; title: Direct-current generators 44; title: Changing elementary dynamo into d.c. type 44; title: Armature windings. 47; title: Types of d.c. generators 50; title: Electric motors 52; title: Motor-generator 57; title: Function of motor-generator in wireless work 57; title: Care of motor-generator 59; title: Study of circuits and their protection 62; title: Series circuit 62; title: Multiple, or parallel, circuit 62; title: Shunt circuit 64; title: Open and closed circuits 65; title: Protective devices 66; title: Automatic cut-out 68; title: Alternating-current devices 68; title: Electrical measurements 69; title: Practical electrical units 69; title: Measuring instruments 71; title: Fundamental wireless phenomena 82; title: Oscillatory discharge 82; title: Producing oscillatory discharge 83; title: Oscillation frequency 85; title: Damping 86; title: Resonance 88; title: Oscillation constant 90; title: Condensers 92; title: Electrostatic capacity 92; title: Dielectrics 93; title: Types of condensers 94; title: Action of condenser 100; title: Condenser discharge 102; title: Transformers 105; title: Principle of transformer 105; title: Closed-core transformer 108; title: Open-core and magnetic leakage transformers 109; title: Oscillation transformer 110; title: Reactance 111; title: Electromagnetic waves 112; title: Formation of waves 112; title: Wave lengths of ether vibrations 113; title: Production of electromagnetic waves 114; title: Radiation of waves 115; title: Characteristics of electromagnetic waves 117; title: Stationary waves 119; title: Wave lengths 120; title: Detection of electromagnetic waves 123; title: Transmitting apparatus and circuits 126; title: Symbols used 127; title: Motor-generators 133; title: Transformers 133; title: Condensers 134; title: Keys 137; title: Spark gap 139; title: Oscillation transformer 147; title: Helix 147; title: Modern types 148; title: Aerials, or antennae 151; title: Types of aerials 153; title: Aerial construction 157; title: Aerial change-over switch 160; title: Transmitting apparatus and circuits (continued); title: Transmitting circuits 162; title: Development of transmitter 162; title: Relation of wave length to frequency 165; title: Continuous-wave wireless systems 166; title: Storage battery 167; title: Elements of cell 169; title: Electrolyte 171; title: Specific gravity 172; title: Action of cell on charge 172; title: Action of cell on discharge 173; title: Capacity of battery 174; title: Edison cell 177; title: Care of lead-plate battery 178; title: Height of electrolyte in cell 178; title: Specific gravity tests 179; title: Gassing 185; title: Sulphating 187; title: Voltage tests 188; title: Emergency transmitting apparatus 190; title: Receiving apparatus and circuits 195; title: Comparison of transmitting and receiving circuits 195; title: Detectors 196; title: Rectified current impulses 197; title: Crystal detectors Y. 199; title: Vacuum-valve detectors 204; title: Tuning devices 209; title: Loose coupler 210; title: Variometer 212; title: Miscellaneous types of receivers 213; title: Test buzzer 213; title: Telephone receivers 215; title: Receivers of undamped oscillations 216; title: Receiving circuits 219; title: Directly coupled circuits 220; title: Inductively coupled circuits 222; title: Explanation of coupling 226; title: Tuning circuits 229; title: Tuning transmitter 229; title: Tuning receiver 237; title: Operating problems 243; title: Interference 243; title: Static 245; title: Learning the code 247; title: Commercial traffic regulations 252; title: Government examination questions 258