Official Course Description: MCCCD Approval: 07/22/08
AVT115 19966-20086	L+L	7 Credit(s)	8 Period(s)
Communication and Navigation Basic Circuits
Theory of operation and circuitry of all transmitter and receiver circuitry including interfacing and troubleshooting of amplitude and frequency modulation transmitters and receivers, antennas, high and very high frequency communication and interphone systems. Prerequisites: Permission of Department or Division.

Go to Competencies    Go to Outline
 

MCCCD Official Course Competencies:
AVT115   19966-20086	Communication and Navigation Basic Circuits

1.	Explain the theory of operation and circuitry of audio voltage amplifiers. (I)
2.	Explain the theory of operation and circuitry of audio power amplifiers. (II)
3.	Explain the theory of operation and circuitry of preamplifier circuits. (III)
4.	Explain the theory of operation and circuitry of audio transducers. (IV)
5.	Explain the theory of operation and circuitry of radio frequency voltage amplifiers. (V)
6.	Explain the theory of operation and circuitry of radio frequency oscillators. (VI)
7.	Explain the theory of operation and circuitry of radio frequency power amplifiers. (VII)
8.	Explain the theory of operation and circuitry of the amplitude modulation transmitter. (VIII)
9.	Explain the theory of operation and circuitry of modulator circuits. (IX)
10.	Explain the theory of operation and circuitry of the frequency modulation transmitter. (X)
11.	Explain the theory of operation and circuitry of the frequency modulation receiver. (XI)
12.	Explain the theory of operation and circuitry of the amplitude modulation receiver. (XII)
13.	Explain the theory of operation and circuitry of the signal sideband transmitter. (XIII)
14.	Explain the theory of operation and circuitry of the signal sideband receiver. (XIV)
15.	Explain the fundamentals of propagation. (XV)
16.	Explain the theory of operation and circuitry of vertical and horizontal antennas. (XVI)
17.	Explain the fundamentals and circuitry of mast installation. (XVII)
18.	Explain the theory of operation and circuitry of transmission lines. (XVIII)
19.	Explain the theory of operation, test, and troubleshoot the radio. (XIX)
20.	Explain the theory of operation, identify components, test, and troubleshoot high and very high frequency speech communications systems. (XX)
21.	Explain the theory of operation and identify components of the passenger address system. (XXI)
22.	Explain the theory of operation and identify components of the interphone system. (XXII)

Go to Description    Go to top of Competencies
 

MCCCD Official Course Outline:
AVT115   19966-20086	Communication and Navigation Basic Circuits

I. Audio Voltage Amplifiers A. Theory of operation 1. Stage gain 2. Band width 3. Impedance matching 4. Coupling methods B. Circuitry C. Interfacing II. Audio Power Amplifiers A. Theory of operation 1. Single-ended 2. Transformer coupling 3. Push-pull 4. Complementary symmetry 5. Heat sinks B. Circuitry C. Interfacing III. Preamplifier Circuits A. Theory of operation 1. Gain controls 2. Tone controls 3. Functions switch B. Circuitry C. Interfacing IV. Audio Transducers A. Theory of operation 1. Microphones a. Polar patterns b. Impedance c. Output level 2. Speakers and baffles 3. Phonograph 4. Tape decks B. Circuitry C. Interfacing V. Radio Frequency (RF) Voltage Amplifiers A. Theory of operation 1. Class A 2. Tuned and untuned output 3. Transformer coupled 4. Class AB, B, and C 5. Frequency multipliers 6. Buffer amplifiers B. Circuitry C. Interfacing VI. RF Oscillators A. Theory of operation 1. Hartley oscillator a. Shunt fed b. Series fed 2. Colpitts oscillator 3. Franklin crystal oscillator 4. Pierce crystal oscillator 5. Frequency synthesizers B. Circuitry C. Interfacing VII. RF Power Amplifiers A. Theory of operation 1. Class A operation 2. Class AB operation 3. Class B operation 4. Class C operation 5. Neutralization 6. Link coupling 7. Impedance coupling 8. Transformer coupling 9. Capacitor coupling B. Circuitry C. Interfacing VIII. Amplitude Modulation (AM) Transmitter A. Theory of operation B. Components 1. Oscillator 2. Buffer 3. Power amplifier 4. Keying circuits 5. Pinetwork output 6. Transmitter tuning 7. Spurious transmissions a. Parasitic oscillation b. Over modulation 8. Dummy load 9. Radio frequency 10. Radio frequency power meter C. Interfacing IX. Modulator Circuits A. Theory of operation B. Components 1. Modulator power amplifier 2. Speech amplifiers 3. Speech compression 4. High-level amplifiers 5. Low-level modulation 6. Sideband generation 7. Bandwidth 8. Modulation percentage measurements C. Circuitry D. Interfacing X. Frequency Modulation (FM) Transmitter A. Theory of operation B. Components 1. Oscillator 2. Modulator a. Carrier b. Sidebands c. Bandwidth 3. Frequency multipliers 4. Linear power amplifiers 5. Oscillator auto flight computer systems 6. Pre-emphasis circuits C. Circuitry D. Interfacing XI. FM Receiver A. Theory of operation B. Components 1. Tuned radio frequency a. Radio frequency (RF) amplifier b. Detectors c. Ganged tuning 2. Superheterodyne receivers a. RF amplifier b. Mixer c. Oscillator d. Intermediate frequency amplifier e. Detector f. Audio amplifier 3. Image rejection 4. Double and triple superheat 5. Beat frequency oscillator C. Circuitry D. Interfacing XII. Amplitude Modulation Receiver A. Theory of Operation B. Components 1. FM detectors a. Slope detector b. Ratio detector c. Foster Seeley discriminator 2. Limiters 3. De-emphasis circuits 4. Squelch circuits C. Circuitry D. Interfacing XIII. Single Sideband (SSB) Transmitter A. Theory of operation B. Components 1. Balanced modulator 2. Double sideband signal 3. Sideband filter 4. Mixers 5. Linear RF power amplifier C. Circuitry D. Interfacing XIV. SSB Receiver A. Theory of operation B. Circuitry 1. BFO circuits 2. Product detectors circuits 3. Automatic gain control circuits C. Interfacing XV. Propagation A. Fundamentals 1. Radio wave 2. Ground wave 3. Sky wave 4. Ionosphere 5. Polarization B. Antenna types 1. Marconi 2. Hertz C. Interfacing XVI. Antennas A. Vertical, quarter and half wave 1. Theory of Operation 2. Characteristics a. Height b. Electrical and magnetic distribution c. Polarization pattern d. Feed impedance B. Horizontal, quarter and half wave 1. Theory of operation 2. Characteristics a. Length b. Voltage and current distribution. c. Polarization pattern C. Circuitry D. Interfacing XVII. Mast Installation A. Fundamentals 1. Foundation 2. Guy wires 3. Types of antennas a. Distance measuring equipment b. Automatic direction finder c. Very high frequency omni range d. Communication and very high frequency e. Communication and high frequency f. Radio altimeter g. Radar h. Traffic and collision avoidance systems i. Air traffic controller j. Marker beacon k. Glide stop l. Localizer B. Circuitry C. Interfacing XVIII. Transmission Lines A. Theory of operation 1. Single wire 2. Twisted pair 3. Ribbon line a. Construction b. Impedance c. Losses 4. Open wire line 5. Coaxial cable a. Construction b. Impedance c. Losses 6. Short-wave radio measurements B. Circuitry C. Interfacing XIX. Radio A. Theory of operation B. Components C. Radio waves 1. Wave length and frequency 2. Frequency bands 3. Carrier waves 4. Antennas D. Test and troubleshoot E. Interfacing XX. Speech Communication A. Theory of operation B. High-frequency communication system C. Very-high-frequency communication system 1. Components a. Transceiver b. Antenna c. Couplers 2. Audio selector panel 3. Control panel D. Data transmission and automatic calling 1. Selcal 2. Ascall 3. Others E. Test and troubleshoot F. Interfacing XXI. Passenger Address System A. Theory of operation B. Components 1. Amplifier 2. Reproducer boarding music tape C. Interfacing XXII. Interphone System A. Service interphone systems 1. Theory of operation 2. Components a. Service interphone switch b. Audio accessory unit c. Audio selector panel B. Cabin interphone system 1. Theory of operation 2. Components a. Audio selector panel b. Audio accessory unit c. Attendant's handset d. Pilot call panel C. Ground call system 1. Theory of operation 2. Components a. Pilot's call panel b. Ground crew control horn c. Aural warning speakers D. Flight interphone systems 1. Theory of operation 2. Components a. Audio selector panel b. Audio accessory unit E. Interfacing

Go to Description    Go to top of Competencies    Go to top of Outline