Experimental Wireless Stations Their Theory, Design, Construction And Operation
Publisher: The author
Published: 1912
Place of publication: Minneapolis
Language: eng
Table of contents: title: CONTENTS; title: CHAPTER I; title: NATURE OF WIRELESS TRANSMISSION; title: Theory; Action of Radiant Waves; Interference; How Signals Are Sent; Wave Lengths Used 11; title: CHAPTER II; title: AERIALS; title: The Antenna; Dimensions; Supports; Height and Length; Various Types; 200 Meter Design; Table for Various Wave Lengths; Radiation Resistance; Capacity and Inductance; Insulation and Construction; Poles and Guy Wires 23; title: CHAPTER III; title: COIL AND SUB-SURFACE SYSTEMS; title: Multi-Turn Coil Receiver; Portable Receiving Long Distance Set; Principle of Coil Action; Directional Effects of Coils; Types and Construction; Radio Compass. Sub-Surface Radio; Antenna Buried Underground; Roger's System; U. S. Navy Experiments 48; title: CHAPTER IV; title: GROUNDS AND LIGHTNING PROTECTION; title: Ground Connections; Various Types; Construction; Lightning Protectors; A Safe Radio Station; Underwriter's Rules 57; title: CHAPTER V; title: THE TRANSMITTER AND RESONANCE; title: Transmitting Circuit; Principle of Oscillations; Action of Energy; Resonance; Period of Vibration; Adjustments; Harmonic Effects; Resistance; Beats; Typical Curves for Various Transmitters; Damping; Relation of Antenna Current and Voltage; Experiment Illustrating Coupling 65; title: CHAPTER VI; title: WAVE LENGTH, CAPACITY, AND OSCILLATION CIRCUITS; title: Damped Wave Transmitter; Calculation of Wave Length, Capacity, and Circuits; Range* of Transmission; Power; Frequency and Voltage; Table of Capacities; Formula for 200 Meter Calculations; Spark Gap; Antenna Circuit; Percentage of Coupling; Example of a Complete Spark Transmitter; Dimensions 90; title: CHAPTER VII; title: TRANSFORMERS AND SPARK COILS CONSTRUCTION DETAILS; title: Principle of Induction Coil; Transformer Construction Data; Building a Transformer; Reactance Coil; Spark Coil; Table for Various Spark Coils with Dimensions 108; title: CHAPTER VIII; title: AUXILIARY APPARATUS; title: Keys; Electrolytic Interrupter; Kickback Prevention; Aerial Switches; Automatic Antenna Switch; Storage Batteries 121; title: CHAPTER IX; title: CONDENSERS AND CAPACITIES; title: Condenser Theory; Calculation of Capacities; Dielectric Table; Building Condensers; Dimensions and Materials 133; title: CHAPTER X; title: INDUCTANCES; title: Calculation of Inductance; Construction of Helix and Oscillation Transformer; Simple Formulas for Definite Low Wave Length Sets 148; title: CHAPTER XI; title: SPARK GAPS; title: Purpose of Gap; Materials Suitable; Series Gap; Rotary Gap; Construction of Rotary Gapj Rotary Quenched Gap; Rotary Gap Circuits; Chaffee Gap; Two Tone Gap 158; title: CHAPTER XII; title: RADIATION INDICATORS AND MEASUREMENTS; title: Use of Radiation Indicators; Hot Wire Ammeter Construction; Wave Meter; Use of Hot Wire Ammeter; Shunt Resonator; Cost of Transmitter Complete; Frequency; Decrement; Logarithmic Decrement Illustrated; Electron Tubes for Measurements; Audion Connected to Wave Meter 170; title: CHAPTER XIII; title: ADVANCED SYSTEMS; title: Continuous Waves; Wireless Telephone; Quenched Spark; High Frequency Alternators; Demonstration of Arc Radiotelephone; Poulsen Arc; Construction of Quenched Gap; Lepel Gap; Advantage of Quenched Gaps; Wireless Piano; Goldschmidt Alternator; Alexanderson Alternator; Magnetic Modulator; Static Transformer Frequency Multiplier; Onde Unique System; Vacuum Tube Methods; Duplex High Speed Operation; Wave Changing Systems 187; title: CHAPTER XIV; title: VACUUM VALVES AND CIRCUITS; title: Vacuum Tubes; Amplifiers; Detectors; Oscillators; Modulators; Tube Radiotelephones; Experiments Showing Fundamental Action; Two and Three Electrode Tubes; Curves of Operation; How the Circuits Work; Operation of Grid; Audion Circuits; Lieben Reisz Amplifier; Pliotron; Cascade Amplifier; Outside Grid Tube; Dynatron; Chart of Vacuum Tube Circuits for all Purposes; Ultra-audion Receiver; Damped and Undamped Wave Circuits; Audion Generator; Armstrong Circuit; Construction of Long Wave Length Oscillating Receiver; Adjustment of Oscillating Circuit; Short Wave Length Repeating Amplifying Receiver; Cascade Circuits; Advantages and Disadvantages of Audion; Combined Crystal Detector and Audion; Sensitizing Circuits; Special Vacuum Tube Circuits; Self-tuned Oscillation Generator; Self-Modulated Transmitter; New Tube Circuits 207; title: CHAPTER XV; title: TUBE RADIOTELEPHONES; title: Modulation Systems; Portable Radiotelephone; Transcontinental Wireless Telephone; Connection of Tubes; U. S. Army Set; U. S. Navy Set; A Wireless Telephone Operated from Your Lamp Socket; Power Tube Radio-telephone; A Small Amateur Radiophone; Cost of a Telephone Set 238; title: CHAPTER XVI; title: THE RECEIVING STATION; title: Operation of Receiver; Telephone Receivers; Purpose of Detector; Energy of Signal Received; Types of Detectors; Principles of Operation 251; title: CHAPTER XVII; title: DETECTORS; title: Vacuum Tube Detectors; Solid Rectifiers; Crystals; Construction of Detectors; Crystal Mounting; Adjustments; Buzzer Test 257; title: CHAPTER XVIII; title: SENSITIVE INDICATORS FOR RECEIVING SETS; title: Telephone Receivers; Continuous Wave Detectors; Einthoven Galvanometer; Construction of Indicators; Automatic Indicators; Hoxie Photographic Recorder; Amplifiers; Microphone Amplifier; Baldwin Receiver; Adjustments; How Receiver Operates; Measuring Intensity of Received Signal; Audibility Meter 269; title: CHAPTER XIX; title: TUNING AND INTERFERENCE PREVENTION; title: Principle of Resonance Used in Tuning; Interference; Mitigating Various Kinds of Interference; Tuning Methods; How to Tune a Receiving Set; Receiving Circuits; Loose Coupled, Bridge, and Interference Mitigating Circuits; How to Use a Loose Coupler; Balancing Out Power Line Hum 283; title: CHAPTER XX; title: SPECIAL RECEIVING SETS; title: Time Signal Receiver; Weagant's Stray Mitigator; Alexanderson Barrage Receiver; Heterodyne Receiver; Action of Heterodyne Circuit; Phase Modified Receivers; Balance Systems; Construction of Phase Rotator; Phase Shifting Explained; Multiple Unit Phase Shifting Receivers; Uni-Control and Automatic Receivers; Capacity Coupling; Universal Receiving Set for Long and Short Damped and Undamped Wave Signals; Autodyne Receiver; Magnetic Tube Sensitizer; Short Wave Oscillating Receiver; New Circuits 300; title: CHAPTER XXI; title: RECEIVING CONDENSERS; title: Construction of Fixed and Variable Condensers; Circuits for Condensers; Building a Condenser; Korda Air Condenser; Assembly of Plates; Geared Fine Adjustment Condenser 314; title: CHAPTER XXII; title: CONSTRUCTION OF RECEIVING INDUCTANCES; title: Tuners; Loose Couplers; Loading Coils; Sliders; Windings for Desired Wave Lengths; Variometer; Variometer Phase Rotator; Switching; Dead End Elimination; Tens and Units Connection; Multilayer Coils; Compact Long Wave Length Coils; Couplers for Long Wave Lengths; Dimensions for Various Wave Lengths; Plural Receiving Sets 325; title: CHAPTER XXIII; title: MAKING THE WIRELESS SET WORK; title: Trouble Finding; Principle Faults Found; How to Make Repairs; Reasons for Various Failures; Improving Poor Signals 346; title: CHAPTER XXIV; title: MISCELLANEOUS APPLICATIONS; title: Railroad Wireless; Forest Fire Prevention; Automobile Wireless; Aeroplane Sets; Wireless Compass; Bellini Tosi Apparatus; Multiple and Ground Aerials; Balancing Aerials; Telemechanics 350; title: CHAPTER XXV; title: TIME AND WEATHER SIGNALS; title: How Signals Are Transmitted and How to Receive Them; Naval Stations Sending Information; Codes Used; Example of Deciphered Code 357; title: CHAPTER XXVI; title: RADIOCOMMUNICATION PATENTS; title: A List of Patents for System and Apparatus; Discussion of Some Patents 362; title: CHAPTER XXVII; title: RIGHTS OF THE EXPERIMENTER; title: Information on Complete Sets; List of Radio Stations; The Law of 1912; How to Get Licenses; Radio Inspectors; Rules for Operating; Patents; Tendency of Art; Wireless Codes; Conclusion 373