Maricopa Community Colleges  ELT277AA   19886-19926 
Official Course Description: MCCCD Approval: 06/02/87
ELT277AA 19886-19926 LEC
LAB
4 Credit(s)
0 Credit(s)
3 Period(s)
3 Period(s)
Communications Electronics
AM(amplitude modulation) and FM(frequency modulation) transmitters and receivers, antennas, transmission lines, impedance matching, and power with related laboratory experience. Material applicable to FCC(Federal Communication Commission) license requirements. Prerequisites: ELT121, or ELT123, or ELT210, or (ELT139 and ELT240). Recommended corequisites: ELT251.
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MCCCD Official Course Competencies:
 
ELT277AA   19886-19926 Communications Electronics
1. Analyze series and parallel resonant circuits mathematically. (II, III)
2. Describe bandwidth and gain of resonant circuits. (II, III)
3. Analyze series and parallel tuned circuits. (II, III)
4. Describe criteria for oscillations. (II, III)
5. Describe active and passive filters. (III, IV)
6. Describe the effects of a filter on complex waveforms. (III, IV)
7. Analyze the components of an AM modulated wave. (IV)
8. Describe and identify sources of noise, equivalent noise resistance. (V)
9. Compute signal-to-noise ratio. (V)
10. Describe a method used to measure noise. (V)
11. Draw a typical block diagram of an AM transmitter. (VI, VIII)
12. Troubleshoot an AM transmitting system. (VI, VIII)
13. Explain the Armstrong, Colpitts, and crystal oscillator. (VII)
14. Describe LC oscillator sine wave. (VII)
15. Align an FM receiver and detectors. (VII, IX-XI)
16. Explain single-sideband (SSB) principles. (VIII)
17. State several advantages of SSB transmission. (VIII)
18. Describe FM modulation techniques. (IX)
19. Explain the function of each block of an FM receiver. (IX)
20. Troubleshoot FM receiving systems. (IX, X)
21. Explain the theory of a lossless transmission line. (X, XI)
22. Compute VSWR. (XI)
23. Use a Smith chart. (XI)
24. Define polarization and the dipole antenna. (XII)
25. Describe characteristic impedance. (XII)
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MCCCD Official Course Outline:
 
ELT277AA   19886-19926 Communications Electronics
    I. Transmission fundamentals review
        A. Communication system
        B. Design considerations
      II. Resonant and coupled circuits
          A. Series and parallel resonant circuits
          B. Gain and bandwidth
          C. Double tuned circuits
          D. Coefficient of coupling
          E. L and Pi networks
        III. Passive and active filters
            A. Bandpass filter
            B. Band-reject filter
            C. M-derived filter
            D. Butterworth
            E. Chebyshev filter
          IV. Waveform spectra
              A. Fourier series for common waveform
              B. Infinite pulse train
              C. Pulsed RF wave
            V. Noise analysis
                A. Types of noise
                B. Calculation of noise figure
                C. Effective noise temperature
                D. Equvalent antenna noise temperature
                E. Noise measurements
              VI. RF and broadband amplifiers
                  A. Bandwidth
                  B. Gain
                  C. Neutralization of RF amplifier
                  D. Stagger tuning
                VII. RF oscillator
                    A. Feedback oscillators
                    B. Crystal controlled
                    C. Voltage controlled
                    D. Phase-locked loop principles
                  VIII. AM modulation
                      A. Amplitude-modulated waveforms
                      B. Single-sideband amplitude modulation
                      C. Demodulation of AM signals
                      D. Various amplitude-modulated systems
                    IX. Angle modulation
                        A. FM modulation
                        B. Phase modulation
                        C. Narrow-band FM
                        D. Detection of FM modulation
                        E. Phase-locked loop discriminator
                      X. Receiver functions
                          A. Superheterodyne receiver
                          B. FM receiver
                          C. Stereo receivers
                          D. Receiver sensitivity
                        XI. Radio transmission
                            A. Lossless transmission line
                            B. Matched line
                            C. Voltage standing-wave ratio
                            D. Matching stubs
                            E. Smith chart analysis
                          XII. Antennas and wave propagation
                              A. The dipole
                              B. Polarization
                              C. Antenna feeds
                              D. Fresnel zones
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