Book description
A hands-on guide to finding the sources of electromagnetic interference and then fixing the problems. Includes basic theory of EMI as well as detailed explanations of why this problem is becoming more serious as the international scope of the communications and electronics industries grow. This book is not a textbook, but rather a handbook that will become a constant source of reference for anyone who runs into trouble with EMI. Includes chapters on grounding, circuit shielding and filtering, preventing EMI in circuit design, as well as EMI sources such as power lines, transmitters, television, consumer electronics, telephones, automobiles, and the ever-frustrating mystery EMI.
There are very few other books available even though EMI is constantly discussed and cursed. Most of the books on the market are about how to prevent EMI in circuit design or approaches to understanding the theory behind EMI. Though this information is important, especially to an engineering audience, these books hold no value at all to the technicians and hands-on practitioners in the fields of communications and servicing.These savvy professionals know that the book they are looking for and need is just not on the market. To get the information they need, this group is forced to read every magazine article they can find on the subject and rely on the advice of other professionals whether through technician groups or newsgroups. This book fills a void in the telecommunications and electronics industries by providing practical troubleshooting information.
- Addresses the technician's needs and interests
- Written by an eminent authority in the field
- Covers correction and prevention of problems with EMI
Table of contents
- Cover image
- Title page
- Table of Contents
- Copyright
- Preface
- Chapter 1: Introduction to the EMI Problem
-
Chapter 2: Electrical and Electromagnetic Fundamentals
- WHAT IS ELECTRICITY?
- POSITIVE AND NEGATIVE ELECTRICITY
- ELECTRONIC MODEL OF THE ATOM
- THE BOHR MODEL OF THE ATOM
- ELECTRON SHELLS
- ELECTRON SUBSHELLS AND ELECTRON SPIN
- ELECTRON VALENCE AND FREE ELECTRONS
- CONDUCTORS, INSULATORS, AND SEMICONDUCTORS
- THE UNIT OF ELECTRIC CHARGE
- ELECTRICAL POLARITIES
- MILLIKAN’S OIL DROP EXPERIMENT
- ELECTRICAL POTENTIAL
- ELECTRICAL CURRENT AND ITS UNITS
- ELECTRICAL CURRENT VS ELECTRICAL CHARGE
- TYPES OF CURRENT FLOW
- RESISTANCE TO ELECTRICAL CURRENT
- CONDUCTANCE
- CURRENT FLOW DIRECTION
- ELECTRICAL POWER
- ELECTRICAL SOURCES
- THE ELECTROMAGNETIC FIELD
- SOURCES OF ELECTROMAGNETIC INTERFERENCE
- Chapter 3: Fundamentals of Electromagnetic Interference
- Chapter 4: Grounding Methods for RF Systems
- Chapter 5: Shielding Electronic Circuits
- Chapter 6: Filtering Electronic Circuits
- Chapter 7: AC Power-Line and Electrical Device EMI
- Chapter 8: Controlling Transmitter Spurious Emissions
-
Chapter 9: Telephones and EMI
- THE FEDERAL COMMUNICATIONS COMMISSION
- THE TELEPHONE COMPANY
- THE RADIO OWNER
- THE TELEPHONE MANUFACTURER
- THE TELEPHONE OWNER
- TECHNICAL ISSUES
- TWISTED PAIR, FLAT (PARALLEL), AND SHIELDED WIRING
- COMMON MODE VS DIFFERENTIAL MODE
- RESONANCES
- TELEPHONE GROUND
- CORROSION
- SUBSTANDARD WIRING
- TELEPHONE CLASSIFICATION
- TELEPHONE REGISTRATION NUMBERS
- CAPACITORS
- COMMON-MODE RF CHOKES
- FILTERING
- FEDERAL COMMUNICATIONS COMMISSION COMPLIANCE & INFORMATION BUREAU
- SOURCES OF RADIO-PROOF TELEPHONES AND RADIO FILTERS FOR TELEPHONES
- Chapter 10: Noise Cancellation Bridges
- Chapter 11: Locating EMI Sources
-
Chapter 12: EMI to Television, Cable TV, and VCR Equipment
- THE BASIC TELEVISION RECEIVER
- FUNDAMENTAL OVERLOAD
- HARMONIC OVERLOAD
- AUDIO RECTIFICATION
- IMD INTERFERENCE
- IF INTERFERENCE
- DIRECT PICKUP
- COMMON-MODE VS DIFFERENTIAL-MODE SIGNALS
- COMMON-MODE FILTERS
- FILTERING
- STUBS FOR EMI ELIMINATION
- FARADAY SHIELDED COAXIAL CABLE
- CABLE TELEVISION SYSTEMS
- TWO-WAY CATV
- CHANNELIZATION
- LEAKAGE
- RESPONSIBILITY
- FINDING LEAKS
- WHAT TO DO WHEN THE INTERFERENCE IS AT THE SUBSCRIBER END
- WHAT TO DO WHEN THE CUSTOMER IS AT FAULT
- VCRS
- Chapter 13: EMI to Consumer Electronics
- Chapter 14: EMI from Computers
- Chapter 15: Mystery EMI: Rusty Downspouts and All That
-
Chapter 16: Radio Receiver Basics
- SIGNALS, NOISE, AND RECEPTION
- THERMAL NOISE
- THE RECEPTION PROBLEM
- STRATEGIES
- RADIO RECEIVER SPECIFICATIONS
- ORIGINS
- SUPERHETERODYNE RECEIVERS
- RECEIVER PERFORMANCE FACTORS
- UNITS OF MEASURE
- dBm
- dBmV
- dBμV
- RULE OF THUMB: To convert dBμV to dBm, subtract 113 dB; le., 100 dBμV = (100 dBμV-113 dB) = −13 dBm.
- NOISE
- SIGNAL-TO-NOISE RATIO (SNR OR Sn)
- NOISE FACTOR, NOISE FIGURE, AND NOISE TEMPERATURE
- Noise Factor (Fn)
- Noise Temperature (Te)
- NOISE IN CASCADE AMPLIFIERS
- RECEIVER NOISE FLOOR
- STATIC MEASURES OF RECEIVER PERFORMANCE
- SENSITIVITY
- SELECTIVITY
- IF Bandwidth
- IF Passband Shape Factor
- STABILITY
- AGC RANGE AND THRESHOLD
- DYNAMIC PERFORMANCE
- INTERMODULATION PRODUCTS
- −1 dB COMPRESSION POINT
- THIRD-ORDER INTERCEPT POINT
- DYNAMIC RANGE
- BLOCKING
- CROSS-MODULATION
- RECIPROCAL MIXING
- IF NOTCH REJECTION
- INTERNAL SPURII
- Chapter 17: Dealing with Radio Receiver System EMI
- Chapter 18: Electrostatic Discharge (ESD)
- Chapter 19: Regulatory Issues
- Appendix A: Automotive Interference Solutions
- Appendix B: FDA Documents on EMI
- Index
Product information
- Title: The Technician's EMI Handbook
- Author(s):
- Release date: June 2000
- Publisher(s): Newnes
- ISBN: 9780080518589
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