8/3/2019 AC Outcomes

1/5

B.Tech Electronics Sem-IV

K50208: ANALOG COMMUNICATIONS

Objectives:

I. To study various types of microphones & loudspeakers & to plot frequency response ofLoudspeaker.

II. To study the need of modulation and Amplitude Modulation and Demodulation.III. To study power saving technique in Amplitude Modulation and generation method of

SSB.

IV. To study frequency modulation and effect of noise on FMV. To study properties of receiver TRF and super-heterodyne receiver.

VI. To study the transmission line and basics of antenna.VII. To understand the concept of telephone.

8/3/2019 AC Outcomes

2/5

Syllabus:

Unit No. Contents Lectures

I Basics For Electronic Communication:

Properties of sound, types of microphones and loudspeaker, enclosures,

Different methods of sound recording and reproduction ( Analog &

digital sound) Monophony , stereophony P.A. system & Hi-Fi system.

Types of Noise, Noise calculation, noise figure, noise temperature.

09

II Amplitude Modulation & SSB Techniques:

Necessity of modulation, Generation of AM frequency spectrum of AM

wave ,power relation in AM, Balanced Modulator, Generation methods

of SSB, Pilot carrier systems ISB,VSB.

08

III Frequency Modulation:

Mathematical representation of FM, Frequency Spectrum, Phase

modulation, comparison of FM and PM, Noise triangle, Pre-emphasis,

de-emphasis, Comparison of wide band and narrow band FM,

Stereo phonic FM multiplex system, Generation methods of FM.

08

IV Radio Receiver:

Receiver types, AM receiver, Communication receiver, FM

receiver,Single and independent Sideband receivers.

07

V Radiation and Propagation of Waves & Transmission Lines:

Electromagnetic Radiation, : Ground Wave, Sky Wave, Tropospheric

Scatter propagation, Extraterrestrial Communication, Bands and

services. Fundamentals of Transmission lines, Characteristic

Impedance, Losses in Transmission lines, Standing waves, Quarter and

Half wave length lines, Reactance property of Transmission lines, Smith

chart and its application. Transmission line components (Stub,

directional coupler, Baluns, slotted lines).

09

VI Telephony:

Baasic components of telephone network, components of subscriber

07

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telephone instruments, principles of push button dialer, DTMF dialer &

automatic switching, electronic exchange.

Text Books / References

B.P.Lathi, Modern Digital and Analog Communication System, Oxford PressPublication

Kennedy & Devis, Electronic Communication Systems, PHI Dennis Roddy & Coolen, Electronic Communication, PHI

8/3/2019 AC Outcomes

4/5

Outcomes:

1. Studied various types of microphones & loudspeakers2. Also plotted graph indicating frequency response of Loudspeaker.3. Understood the need of modulation for noiseless transmission of information.4. Studied Amplitude Modulation and Demodulation theoretically and practically.5. Studied the power saving technique in Amplitude Modulation and generation method of

SSB.

6. Studied the Frequency modulation and effect of noise on Frequency Modulation.7. Studied properties of Tuned Radio Frequency Receiver and Super-heterodyne

Receiver.

8.

Studied the transmission line and basics properties of Antenna such as :Gain, bandwidth, Polarization, Radiation Pattern etc.

9. Studied the operation of Telephone.10. Evaluated fundamental communication system parameters, such as bandwidth, power,

signal to quantization noise ration, and data rate.

Course outcomes

Course objectives 1 2 3 4 5 6 7 8 9 10

I x x

II x x

III x

IV x

V x

VI x

VII x

VIII x

8/3/2019 AC Outcomes

5/5