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The Cable Television Technology Handbook : Artech House Telecommunications Library - Bobby Harrell

The Cable Television Technology Handbook

Artech House Telecommunications Library

Hardcover Published: 19th December 1986
ISBN: 9780890061572
Number Of Pages: 332

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Prefacep. vii
Introductionp. 1
What Is Community Antenna Television (CATV)?p. 1
Community Antenna Television Becomes Cable Televisionp. 2
A Combination of Wire and Wireless Communicationsp. 3
The Antenna Sitep. 5
The Antenna Systemp. 5
The Antenna Sitep. 5
Towerp. 6
Antennasp. 6
The Transportation Trunkp. 7
Cablesp. 8
Active Devicesp. 10
The Antenna Systemp. 10
Distribution System Overviewp. 13
Coaxial Cable and Equalizationp. 17
Coaxial Cablep. 17
Equalizationp. 23
The Distribution Systemp. 27
The Distribution Trunkp. 27
The Subscriber Dropp. 29
Coaxial Cablep. 29
Ohm's Lawp. 33
An Explanation of Ohm's Lawp. 33
Ohm's Law Applied to Powerp. 34
Ohm's Law and CATV Systemsp. 34
dB and dBmVp. 35
dB Applied to CATV Systemsp. 36
The dB as a Voltage Ratiop. 36
Relationship of Voltage Ratio to Power Ratiop. 38
The dB in Power Calculationsp. 38
dB as Expression of Ratio Lossp. 39
The dB as a Gain Measurementp. 39
The dBmVp. 40
System Performancep. 45
Carrier-to-Noise Ratio: (C/N)p. 45
Carrier-to-Cross Modulation Ratio: (C/X)p. 45
Carrier-to-Third Order Intermodulation Ratio: (C/IM)p. 45
Carrier-to-Second Order Intermodulation Ratiop. 47
System Performance Relationshipsp. 48
Measurement Parametersp. 51
Signal Frequencyp. 52
Signal Levelp. 53
Noisep. 62
Interferencep. 64
Interference from Outside the Systemp. 68
Interference from Within the Systemp. 68
Signal Leakagep. 75
Summaryp. 78
Test Instrumentationp. 79
Network and Signal Analysisp. 79
Signal Analyzersp. 79
Summaryp. 85
Characteristics of Coaxial Cablep. 87
Attenuationp. 88
VSWRp. 89
Structural Return Loss (SRL)p. 91
Effects of Temperature Change on Cable Characteristicsp. 91
Coaxial Cable Transmission Line Typesp. 95
Basic Principlesp. 95
Center Conductorp. 96
Strip Braidsp. 96
Aluminum Shieldp. 96
Drop Cable Shieldp. 97
Thick Aluminum Tapep. 97
Braided Shieldsp. 97
Dielectricsp. 97
Moisturep. 100
Why 75 Ohms?p. 100
Power the Cable TV Systemp. 103
Coupling AC Power to the Coaxial Cablep. 104
Diplexingp. 107
Amplifier Power Suppliesp. 108
Full-Wave Powerp. 108
Transients and Power Surgesp. 110
Power Circuit Protectionp. 112
AC Power Suppliesp. 113
Summaryp. 113
Passive Devicesp. 115
Tapsp. 115
Splittersp. 116
Concepts of Distribution Systemsp. 117
The Trunk Systemp. 117
Hum Modulationp. 118
The Distribution Systemp. 119
Degradation of the Color Characteristicsp. 119
Evaluation and Performance Testingp. 120
Theory of the Heterodyne Converterp. 125
General Theoryp. 125
Detailed Theory of Operationp. 125
Input Impedancep. 127
Sensitivity and Maximum Levelp. 127
Noise Figurep. 127
AGC Sensitivityp. 127
Output Level Rangep. 128
Adjacent Channel Filteringp. 128
Amplification of the Desired Signalp. 129
Automatic Level Control of Picture and Sound Carrierp. 129
Desired Level Ratio Between Picture and Sound Carrierp. 129
Channel Conversionp. 129
Spurious Signalsp. 129
Down-Converter (Tuner)p. 129
RF Amplifierp. 130
IF and Local Oscillator Frequenciesp. 130
Automatic Gain Control (AGC)p. 132
Sound IF Amplifier-Limiterp. 132
FM Signal Characteristicsp. 132
Maximum Bandwidth Considerationsp. 133
Amplifier-Limiter Levelsp. 134
Up-Converter and Mixerp. 134
IF Conversionp. 134
Output Amplifierp. 134
Demodulator and Modulatorp. 137
Amplitude Modulation Theory: System Considerationsp. 137
Mathematical Expressions for Amplitude Modulationp. 138
Amplitude Modulatorsp. 140
Amplitude Modulation Circuit Distortionsp. 141
The Modulatorp. 141
Modulator Theoryp. 141
Video Modulation Sectionp. 141
Video Inputp. 142
Peak White Clipp. 142
Tiltp. 142
Differential Gain and Differential Phasep. 143
RF Carrier Frequencyp. 144
RF Outputp. 144
Demodulator Theory of Operationp. 144
Input Levelp. 144
Noise Figurep. 145
Selectivityp. 145
Input Impedancep. 145
AGC Rangep. 145
Differential Gain and Phasep. 145
Videop. 145
Audio Levelp. 146
Tunerp. 146
IF Amplifier Responsep. 146
Preamplifiers and Filtersp. 149
Properties of Filtersp. 149
Filter Response Terminologyp. 150
Preamplifierp. 151
Typical Filter Specificationp. 151
Insertion Lossp. 151
High Q Trap or Band Eliminationp. 152
Fundamentals of Transmission Linesp. 153
Balanced Linesp. 153
Coaxial Linesp. 154
Characteristic Impedancep. 154
Velocity of Propagationp. 155
Periodicityp. 156
Frequency Responsep. 156
Cable Loss Versus Frequencyp. 157
Cable Fundamentalsp. 160
The Meaning of Coaxialp. 160
The Cable as a Power Carrierp. 160
Loop Resistance in Cable Systemsp. 161
The Cable as a Frequency Carrierp. 161
The Function of the Outer Shieldp. 161
The Cable as a Capacitorp. 161
Cable Losses due to Temperature Changep. 162
Basic Cable Rulep. 163
Cable as an Inductancep. 163
Cable Impedancep. 163
The Importance of Good Cable Installation Practicesp. 163
The Effect of Moisture in a Cablep. 164
Standing Wavesp. 168
Reactancep. 168
Resistance, Reactance, and Impedancep. 168
Inductive Reactancep. 168
Capacitive Reactancep. 169
Resonancep. 169
Network Q Factorp. 170
Antennasp. 171
Antenna Fundamentalsp. 171
Types of Receiving Antennasp. 171
The Dipole Antennap. 171
The Reflectorp. 172
Reflector Actionp. 172
Radiatorsp. 172
Radiator Actionp. 172
The Yagip. 173
Stackingp. 173
Log-Periodic Antennasp. 174
Co-Channel Rejectionp. 174
Bandwidthp. 174
Impedance Matchp. 174
Gainp. 174
Icingp. 174
Mountingp. 175
Search Antennap. 175
Beamwidthp. 176
Minor Lobesp. 177
Gain and Directivityp. 177
Regions of Propagationp. 179
Field Strengthp. 180
Scatter Propagationp. 181
Head-end Testing and Alignmentp. 185
The RF Spectrum of a Television Signalp. 185
Improved Headend Performance Using a Test Demodulatorp. 185
Envelope Detectionp. 186
Synchornous Detectionp. 187
Detector Choicep. 188
Passband Responsep. 189
Applicationp. 189
Noise Measurementp. 191
Antenna Alignmentp. 192
Echo Quantificationp. 196
Check the Head-endp. 199
Setting and Maintaining Modulation Levelsp. 199
Measurement of Video Modulationp. 200
Maintenance of Video Modulationp. 203
Measurement of Audio Deviationp. 204
Maintenance of Audio Deviationp. 207
General Characteristics of Electromagnetic Wavesp. 211
Velocity, Frequency and Wavelengthp. 211
Polarizationp. 212
Radiation and Receptionp. 212
Reciprocity Theoremp. 214
Log Paternp. 214
Antenna Gainp. 214
Directive Gainp. 214
Directive Versus Power Gainp. 215
Gain Referencesp. 215
Estimation of Directive Gainp. 215
Input Impedancep. 216
Bandwidthp. 216
The Yagi Antennap. 217
Log-Periodic Elementsp. 218
Corner Reflectorp. 218
The Parabolic Reflectorp. 219
The Television Signalp. 221
Horizontal Scanning Intervalp. 221
Vertical Scanning Intervalp. 222
Interlacingp. 222
Colorp. 223
Picture Soundp. 224
Electronics Layoutp. 227
System Parametersp. 227
Length of the Systemp. 228
Temperature of the Areap. 228
System Operating Parametersp. 229
System Mapsp. 230
Provisions for Future Servicep. 230
Reviewp. 230
Transportation and Distribution Trunk Designp. 231
General Proceduresp. 231
Cable Types and Applicationsp. 232
The CATV Building Block: Unity Gainp. 232
Determination of Operational Levelsp. 233
Safety Margins for Variation in Temperaturep. 233
Trunk Line Layoutp. 234
Power Suppliesp. 235
Standby Power Suppliesp. 235
Optimum Location of Power Suppliesp. 236
Underground Constructionp. 237
Planningp. 238
Plant Layoutp. 239
Trenching, Plowing, and Boringp. 240
Open Trench Burialp. 241
Pulling Through the Conduitp. 241
Installation of Electronic and Passive Devicesp. 241
Lightningp. 242
Public Relationsp. 242
Satellite Communicationsp. 245
Description of a Simplified Satellite Linkp. 245
Uplinkp. 247
Downlinkp. 255
LNAp. 260
Receiverp. 260
Overall Link C/NO and C/Np. 260
Link Performancep. 261
Thresholdp. 262
Satellitesp. 263
Frequency Re-Usep. 265
Bandwidth, Data Rate, and Information Capacityp. 266
Modulation Formats and Access Techniquesp. 268
Effect of Frequency on Satellite Communications Systemsp. 269
Earth Station Antennasp. 273
Types of Earth Station Antennasp. 273
Axisymmetric Dual-Reflector Antennasp. 274
Prime-Focus-Fed Paraboloidal Antennap. 275
Horn Reflector Antennap. 276
Offset-Fed Reflector Antennasp. 277
Multiple Beam Antennasp. 278
Spherical Reflectorp. 278
Torus Antennap. 280
Data Communicationsp. 283
Parity Bitsp. 284
Bits and Baudsp. 285
Transmission Modesp. 286
Modulationp. 287
Bandwidthp. 288
Multiplexingp. 289
Series and Parallelp. 289
Compatibilityp. 290
Appendixp. 291
Glossaryp. 293
Table of Contents provided by Syndetics. All Rights Reserved.

ISBN: 9780890061572
ISBN-10: 0890061572
Series: Artech House Telecommunications Library
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 332
Published: 19th December 1986
Publisher: Artech House Publishers
Country of Publication: US
Dimensions (cm): 22.9 x 15.2  x 2.2
Weight (kg): 0.66