1. Signal and Modulation : Different waveforms, Frequency ranges, Distortion,
A.M and F.M modulation, P.C.M working of signal side band .
2. Receivers : S.S.B receivers, double conversion receivers.
3. Transmission : Types of wave propagation, required division multiplexing, working of three channel and twelve channel carrier system, S+3DX system. Repeaters and their functions, co-axial systems in India, V.F. &C.F. pairs, M.W. & satellite communication, optical fibre communication.
4. Lines and Cables : Various types of communication cables and lines, cable joints, Telephone cables. Colour coding and counting screen cables used in railways. Cable pressurisation. Optical fibre cable and Jelly filled cable.
5. Switching : PBX,PABX strowdger system, cross bar system. Electronic switching, various types of testing instruments used. Telephone dials, adjustment of dials, C.B. circuits SLOD , MOLD and STD (point to point ) TAX.
6. Telegraphy VFT : Teleprinters, TELEX five pulse code system, VFT system, Radio telegraphy.
7. Power plant and ringers : SCR type power plants, N.B.P.P microwave power plants. Various types of ringers and tone generators.
8. Metering systems : (+) battery and (-)battery metering, Effect of pulse width on metering, excess metering problems.
Books :
1 communication system by Kanady
2 communication system by Rambhadran
Communication Engg.
>2.Switchgear &Protection
>3.Comp. Hardware Engg.
>4.Industrial Electronics
>5.Electrical Power II
>6.Project Work
