principles of broadcast technologies lesson 1 bellevue community college bob young, instructor
TRANSCRIPT
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Principles of Broadcast Technologies
Lesson 1
Bellevue Community College
Bob Young, Instructor
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1a. Electricity
• Voltage
• Current
• Resistance
• Power
• Formulas
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1b. Electricity
• Voltmeter
• Ammeter
• Ohmmeter
• Multimeter
• Wattmeter
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2a. Components
• Resistor
• Capacitor
• Inductor
• Diode (P-N junctions)
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2b. Components
• Resonant (LC) Circuits
• Regenerative Feedback
• Sine Wave
• Phase Relationships
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3a. Radio Wave / RF Energy
• FCC Frequency Allocations
• Radiation
• Propagation
• Path Loss (distance factors)
• Path Loss (environmental factors)
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3b. Radio Wave / RF Energy
• Fading (multipath)
• Fading (Rayleigh)
• Fresnel Zone
• Wavelength
• Diversity Receivers
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4. Decibels• Power
• Voltage
• RF Applications
• Audio Applications
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5a. Modulation
• Carrier (definition)
• Information (definition)
• Analog Modulation
• Amplitude Modulation (AM)
• Frequency Modulation (FM)
• Pulse Modulation (PM) (ICW)
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5b. Amplitude Modulation
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5c. Modulation
• Digital Modulation• Frequency Shift Keying (FSK)
• Phase Shift Keying (PSK)• Amplitude Shift Keying (ASK)
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6. Transmitter
• Audio Processor
• Modulator
• RF Amplifier
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7a. Receiver
• RF Amplifier (terminology note: misuse of term, “pre-amplifier”)
• Demodulator (Detector, Discriminator)
• Audio Processor
• Pre-emphasis and De-emphasis
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7b. AM Receiver
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8a. Interference
• Types of Interference
• Co-channel
• Adjacent Channel
• Intermodulation
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8b. Interference
• Receiver Solutions to Interference
• Superheterodyne Receivers
• Image Frequency
• Dual Conversion Superheterodyne Receivers
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8c. Interference
• Cavity and Filter Solutions to Interference• Bandpass Cavities• High Pass Filters• Low Pass Filters• Block Filters• Notch Reject Filters• LC Filters• Crystal Filters
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9. Antennas
• Types
• Polarization
• Bandwidth
• Gain
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10. Transmission Line
• Types
• Loss Characteristics
• Bending Radius
• Pressurized Transmission Line
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10a. Other Devices
• Transmitter Combiner
• Receiver Multicoupler
• Splitter
• Duplexer
• Leaky Coax
• Bi-directional Amplifier (BDA)
• Isolator
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11a. Applications & Principles
• Broadcast Radio
• Television
• Microwave Networks
• Satellite Communications
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11b. Applications & Principles
• RADAR
• Wireless LAN, 802.11
• Trunked Radio Systems
• Wireless Data and Internet
• Telemetry
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12. Careers
• Job Types and Titles
• Companies That Need You
• Job Search Resources