Chhattisgarh Swami Vivekanand Technical University, Bhilai
Semester : VI Branch: Electronics & Telecommunication
Subject: Communication Hardware Design
Total Theory Periods: 40 Total Tutorial Periods: 12
Total Marks in End Semester Examination: 80
Minimum number of Class tests to be conducted: Two
UNIT – I
Methods of AM generation: Detailed Analysis of Class – C Tuned Amplifiers Linear
shunt plate modulation, Linear series plate modulation, Grid-bias modulation, cathode modulation
suppress grid modulation, screen grid modulation, collector modulation.
UNIT – II
Classification of Radio transmitters, Carrier Frequency Requirements, Master
Oscillator, frequency Synthesizers, Harmonic Generators, Radio Broadcast Transmitters, Radio
Telephone Transmitters, Peak Limiters, Peak Clippers, Volume Compressors, VODAS, Privacy
Devices in Radio Telephony, Broad band Techniques, FDM and TDM Hierarchy, SSB Transmitters,
Suppression of Radiation from Radio Transmitters.
UNIT – III
Classification, Principle of AM Radio Receivers, TRF receivers; Practical TRF
Receivers, Super heterodyne Receivers, Characteristics of Ideal Receiving Aerials, Receiving, RF
Amplifier Stage, Image Signal Rejection, Receivers Noise, frequency Converter stage, Square LAW
and Generalized Conversion Theory’s, Frequency mixers, Tracking and Alignment of Receivers for
single dial Tuning, IF Amplifier, detector and AGC Circuits, Tone Compensated Volume Control,
Tuning Control, Band-Spread Tuning. Noise Limiter, AFC, Code Reception, SSB Receivers, Volume
Expanders, Diversity Reception- Space and Frequency Diversity MUSA System.
UNIT – IV
FM Transmitters and Receivers
: Classification: Capacitive and Reactance Tube Modulator,
Reactance Tube Modulators using RL Circuits, FETS and Transistors, distortion in Reactance Tube
Modulators, Reactance Tube FM Transmitters, Pre-emphasis and De-Emphasis Circuits; Frequency
Drift and Stabilization techniques, Push -pull reactance Tube Modulation, Armstrong transmitters.
Types of Limiters, Classification of FM Detectors -Slope Detector, Stagger Tuned Detector, Center
Tuned Discriminator, Design Requirements for Foster Seeley Discriminator, Ratio Detector
UNIT – V
TV Transmitters and Receivers:
Principles of TV: Aspect ratio, Persistence of vision and flicker,
vertical and horizontal resolution, scanning, Composite video signal, video and sound modulation,
Block diagram of TV transmitter and receiver (Monochrome)
Name of Text Book:
1. Radio Engineering , G.K. Mithal, Khanna Publishers,
2. Monochrome Television Engg, R.R. Gulati, New Age Intl. Publishers
Names of Reference Books:
1. Electronics Communication System, George Kennedy, McGraw Hill; ISE.
2. Principles of Carrier Communication, N.N. Biswas; Wiley Eastern
3. J. Smith, Modern Communication Circuits, McGraw Hill.