Unit-1 (16 Lectures, Marks 22)
Noise and Transmission lines: Noise-Introduction, internal and external noises, signal to
noise ratio and noise figure
Amplitude Modulation/demodulation techniques: Block diagram of electronic
communication system. Modulation-need and types of modulation-AM, FM & PM.
Amplitude modulation – representation, modulation index, expression for instantaneous
voltage, power relations, frequency spectrum, DSBFC, DSBSC and SSBSC (mention only).
Limitations of AM.
Demodulation- AM detection: principles of detection, linear diode, principle of working
and waveforms.
Block diagram of AM transmitter and Receiver.
Unit-2 (12 Lectures, Marks 14)
Frequency Modulation/demodulation techniques: Frequency Modulation: definition,
modulation index, FM frequency spectrum diagram, bandwidth requirements, frequency
deviation and carrier swing, FM generator-varactor diode modulator.
FM detector – principle, slope detector-circuit, principle of working and waveforms.
Block diagram of FM transmitter and Receiver. Comparison of AM and FM.
Unit- 3 (16 Lectures, Marks 22)
Digital communication: Introduction to pulse and digital communications, digital radio,
sampling theorem, types- PAM, PWM, PPM, PCM – quantization, advantages and
applications, digital modulations (FSK, PSK, and ASK). Advantage and disadvantages of
digital transmission, characteristics of data transmission circuits – Shannon limit for
information capacity, bandwidth requirements, data transmission speed, noise, cross talk,
echo suppressors, distortion and equalizer, MODEM– modes, classification, interfacing
(RS232). TDMA, FDMA, CDMA concepts, comparison of TDMA and FDMA
Unit- 4 (16 Lectures, Marks 22)
Cellular Communication: Concept of cellular mobile communication – cell and cell
splitting, frequency bands used in cellular communication, absolute RF channel numbers
(ARFCN), frequency reuse, roaming and hand off, authentication of the SIM card of the
subscribers, IMEI number, concept of data encryption, architecture (block diagram) of
cellular mobile communication network, CDMA technology, CDMA overview, simplified
block diagram of cellular phone handset, Comparative study of GSM and CDMA, 2G, 3G
and 4G concepts.
Satellite communication: Introduction, to Orbit, types of orbits, Block diagram of satellite
transponder.
Suggested Books:
1. Electronic Communication, George Kennedy, 3rd edition, TMH.
2. Electronic Communication, Roddy and Coolen, 4th edition, PHI.
3. Electronic Communication systems, Kennedy & Davis, IV edition-TATA McGraw
Hill.
4. Advanced Electronic Communication systems, Wayne Tomasi- 6th edition, Low
priced edition- Pearson education
Communication Systems Lab
60 Lectures , Marks 40
1. Amplitude modulator and Amplitude demodulator
2. Study of FM modulator using IC8038
3. Study of VCO using IC 566
4. Study of Time Division Multiplexing and de multiplexing
5. Study of AM Transmitter/Receiver
6. Study of FM Transmitter/Receiver
7. ASK modulator and demodulator
8. Study of FSK modulation
9. Study of PWM and PPM
10. Study of PAM modulator and demodulator
Noise and Transmission lines: Noise-Introduction, internal and external noises, signal to
noise ratio and noise figure
Amplitude Modulation/demodulation techniques: Block diagram of electronic
communication system. Modulation-need and types of modulation-AM, FM & PM.
Amplitude modulation – representation, modulation index, expression for instantaneous
voltage, power relations, frequency spectrum, DSBFC, DSBSC and SSBSC (mention only).
Limitations of AM.
Demodulation- AM detection: principles of detection, linear diode, principle of working
and waveforms.
Block diagram of AM transmitter and Receiver.
Unit-2 (12 Lectures, Marks 14)
Frequency Modulation/demodulation techniques: Frequency Modulation: definition,
modulation index, FM frequency spectrum diagram, bandwidth requirements, frequency
deviation and carrier swing, FM generator-varactor diode modulator.
FM detector – principle, slope detector-circuit, principle of working and waveforms.
Block diagram of FM transmitter and Receiver. Comparison of AM and FM.
Unit- 3 (16 Lectures, Marks 22)
Digital communication: Introduction to pulse and digital communications, digital radio,
sampling theorem, types- PAM, PWM, PPM, PCM – quantization, advantages and
applications, digital modulations (FSK, PSK, and ASK). Advantage and disadvantages of
digital transmission, characteristics of data transmission circuits – Shannon limit for
information capacity, bandwidth requirements, data transmission speed, noise, cross talk,
echo suppressors, distortion and equalizer, MODEM– modes, classification, interfacing
(RS232). TDMA, FDMA, CDMA concepts, comparison of TDMA and FDMA
Unit- 4 (16 Lectures, Marks 22)
Cellular Communication: Concept of cellular mobile communication – cell and cell
splitting, frequency bands used in cellular communication, absolute RF channel numbers
(ARFCN), frequency reuse, roaming and hand off, authentication of the SIM card of the
subscribers, IMEI number, concept of data encryption, architecture (block diagram) of
cellular mobile communication network, CDMA technology, CDMA overview, simplified
block diagram of cellular phone handset, Comparative study of GSM and CDMA, 2G, 3G
and 4G concepts.
Satellite communication: Introduction, to Orbit, types of orbits, Block diagram of satellite
transponder.
Suggested Books:
1. Electronic Communication, George Kennedy, 3rd edition, TMH.
2. Electronic Communication, Roddy and Coolen, 4th edition, PHI.
3. Electronic Communication systems, Kennedy & Davis, IV edition-TATA McGraw
Hill.
4. Advanced Electronic Communication systems, Wayne Tomasi- 6th edition, Low
priced edition- Pearson education
Communication Systems Lab
60 Lectures , Marks 40
1. Amplitude modulator and Amplitude demodulator
2. Study of FM modulator using IC8038
3. Study of VCO using IC 566
4. Study of Time Division Multiplexing and de multiplexing
5. Study of AM Transmitter/Receiver
6. Study of FM Transmitter/Receiver
7. ASK modulator and demodulator
8. Study of FSK modulation
9. Study of PWM and PPM
10. Study of PAM modulator and demodulator
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