The documents on this Reference CD provide background knowledge for the communications electronics technician.
The first document covers the basics of direct current and alternating current. It introduces the physical properties of electricity and electromagnetism and describes how electricity is produced, stored, distributed, and used. It also identifies important safety practices to follow when working with electricity.
The second document is a reference text for trainees and other personnel in the communications electronics field. It provides information about wave propagation, transmission lines, and antennas. It also identifies important safety practices to follow when working with electromagnetic radiation.
The images below show pages taken from these documents.
This Reference CD also includes Adobe PDF Reader for Windows 95, 98, 98SE, 2000, and XP to ensure you will be able to view the document.
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COMMUNICATIONS - ELECTRONICS FUNDAMENTALS
Basic Principles of Alternating Current and Direct Current
Headquarters, Department of the Army
(265 pages)
30 August 2004
Safety
Overview
Danger Signs of Equipment Malfunction
Electrical Shock
Questions
Fundamentals of Electricity
Matter
Energy Levels
Shells and Subshells
Ionization
Conductors, Semiconductors, and Insulators
Electrostatics
Static Electricity
Nature of Charges
Charged Bodies
Coulomb’s Law of Charges
Electric Fields
Magnetism
Energy and Work
Electrical Charges
Voltage Production
Electric Current
Electrical Resistance
Conductance
Electrical Resistors
Wattage Rating
Standard Color Code System
Simplying the Color Code
Questions
Direct Current
Basic Electric Circuit
Schematic Diagrams
Ohm’s Law
Power
Series Direct Current Circuits
Kirchhoff’s Voltage Law
Circuit Terms and Characteristics
Parallel Direct Current Circuits
Series-Parallel Direct Current Circuits
Combination-Circuit Problems
Questions
Batteries
Battery Components
Primary and Secondary Cells
Electrochemical Action
Polarization of the Cell
Local Action
Types of Cells
Batteries as Power Sources
Battery Construction
Battery Maintenance
Safety Precautions with Batteries
Capacity and Rating of Batteries
Battery Charging
Questions
Concepts of Alternating Current
Alternating Current And Direct Current
Disadvantages of Direct Current Compared to Alternating Current
Electromagnetism
Magnetic Fields
Basic Alternating Current Generation
Alternating Current Values
Sine Waves in Phase
Sine Waves Out of Phase
Ohm’s Law in Alternating Current Circuits
Questions
Inductance
Characteristics of Inductance
Electromotive Force
Self-Inductance
Counter Electromotive Force
Factors Affecting Coil Inductance
Unit of Inductance
Power Loss in an Inductor
Mutual Inductance
Questions
Capacitance
Electrostatic Field
Simple Capacitor
Capacitor Rating
Charging and Discharging a Capacitor
Charge and Discharge of a Capacitor
Capacitors in Series and in Parallel
Fixed Capacitor
Capacitive and Inductive Reactance
Inductive Reactance
Capacitors and Alternating Current
Impedance
Questions
Transformers
Introduction to Transformers
Basic Operation of a Transformer
Applications of Transformers
Transformer Components
Core Characteristics
Transformer Windings
Schematic Symbols for Transformers
No-Load Condition
Counter Electromotive Force
Voltage in the Secondary
Turns and Voltage Ratios
Effect of a Load
Power Relationship between Primary and Secondary Windings
Actual Transformer Losses
Transformer Efficiency
Transformer Ratings
Distribution Transformers
Isolation Transformers
Transformer Taps
Autotransformers
Transformer Safety
Questions
COMMUNICATIONS - ELECTRONICS FUNDAMENTALS
Wave Propagation, Transmission Lines, and Antennas
Headquarters, Department of the Army
(269 pages)
July 2004
Wave Propagtion
Learning Objectives
What is Propagation?
Principles of Wave Motion
Sound Waves
Light Waves
Electromagnetic Spectrum
Electromagnetic Waves
Summary
Radio Wave Propagation
Learning Objectives
Electromagnetic Fields
Radio Waves
Summary
Principles of Transmission Lines
Learning Objectives
Introduction to Transmission Lines
Effect of Termination on Standing Waves
Summary
Antennas
Learning Objectives
Radio Frequency Safety Precautions
Principles of Antenna Radiation
Current and Voltage Distribution on an Antenna
Radiation of Electromagnetic Energy
Antenna Characteristics
Reciprocity of Antennas
Basic Antennas
Summary
THESE DOCUMENTS ARE IN ELECTRONIC ADOBE PDF FORMAT
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