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DRDO-SET
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Syllabus for Electronics & Communication paper DRDO-SET
Networks: Network graphs: matrices associated with graphs; incidence, fundamental cut set and fundamental circuit matrices. Solution methods: nodal and mesh analysis. Network theorems: superposition, Thevenin and Norton’s maximum power transfer, Wye-Delta transformation. Steady state sinusoidal analysis using phasors. Linear constant coefficient differential equations; time domain analysis of simple RLC circuits, Solution of network equations using Laplace transform: frequency domain analysis of RLC circuits. 2-port network parameters: driving point and transfer functions. State equations for networks.



Electronic Devices: Energy bands in silicon, intrinsic and extrinsic silicon. Carrier transport in silicon: diffusion current, drift current, mobility, and resistivity. Generation and recombination of carriers. p-n junction diode, Zener diode, tunnel diode, BJT, JFET, MOS capacitor, MOSFET, LED, p-I-n and avalanche photo diode, Basics of LASERs. Device technology: integrated circuits fabrication process, oxidation, diffusion, ion implantation, photolithography, n-tub, p-tub and twin-tub CMOS process.

Analog Circuits: Small Signal Equivalent circuits of diodes, BJTs, MOSFETs and analog CMOS. Simple diode circuits, clipping, clamping, rectifier. Biasing and bias stability of transistor and FET amplifiers. Amplifiers: single-and multi-stage, differential and operational, feedback, and power. Frequency response of amplifiers. Simple op-amp circuits. Filters. Sinusoidal oscillators; criterion for oscillation; single-transistor and op-amp configurations. Function generators and wave-shaping circuits, 555 Timers. Power supplies.

Digital Circuits: Boolean algebra, minimization of Boolean functions; logic gates; digital IC families (DTL, TTL, ECL, MOS, CMOS). Combinatorial circuits: arithmetic circuits, code converters, multiplexers, decoders, PROMs and PLAs. Sequential circuits: latches and flip-flops, counters and shift-registers. Sample and hold circuits, ADCs, DACs. Semiconductor memories. Microprocessor(8085): architecture, programming, memory and I/O interfacing.

Signals and Systems: Definitions and properties of Laplace transform, continuous-time and discrete-time Fourier series, continuous-time and discrete-time Fourier Transform, DFT and FFT, z-transform. Sampling theorem. Linear Time-Invariant (LTI) Systems: definitions and properties; causality, stability, impulse response, convolution, poles and zeros, parallel and cascade structure, frequency response, group delay, phase delay. Signal transmission through LTI systems.

Control Systems: Basic control system components; block diagrammatic description, reduction of block diagrams. Open loop and closed loop (feedback) systems and stability analysis of these systems. Signal flow graphs and their use in determining transfer functions of systems; transient and steady state analysis of LTI control systems and frequency response. Tools and techniques for LTI control system analysis: root loci, Routh-Hurwitz criterion, Bode and Nyquist plots. Control system compensators: elements of lead and lag compensation, elements of Proportional-Integral-Derivative (PID) control. State variable representation and solution of state equation of LTI control systems.



Communications: Random signals and noise: probability, random variables, probability density function, autocorrelation, power spectral density. Analog communication systems: amplitude and angle modulation and demodulation systems, spectral analysis of these operations, superheterodyne receivers; elements of hardware, realizations of analog communication systems; signal-to-noise ratio (SNR) calculations for amplitude modulation (AM) and frequency modulation (FM) for low noise conditions. Fundamentals of information theory and channel capacity theorem. Digital communication systems: pulse code modulation (PCM), differential pulse code modulation (DPCM), digital modulation schemes: amplitude, phase and frequency shift keying schemes (ASK, PSK, FSK), matched filter receivers, bandwidth consideration and probability of error calculations for these schemes. Basics of TDMA, FDMA and CDMA and GSM.

Electromagnetics: Elements of vector calculus: divergence and curl; Gauss’ and Stokes’ theorems, Maxwell’s equations: differential and integral forms. Wave equation, Poynting vector. Plane waves: propagation through various media; reflection and refraction; phase and group velocity; skin depth. Transmission lines: characteristic impedance; impedance transformation; Smith chart; impedance matching; S parameters, pulse excitation. Waveguides: modes in rectangular waveguides; boundary conditions; cut-off frequencies; dispersion relations. Basics of propagation in dielectric waveguide and optical fibers. Basics of Antennas: Dipole antennas; radiation pattern; antenna gain.

sir I am a 11th grade student please sent me some materials to appear for this exam,and old queastion
Posted by:-Saheem.     On: Nov 28, 2014 - 9:55:04 PM
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Respected sir, I am studing 3-rd year B E/MECHANICAL ENGINEERING i have lot of dreams,to become an indian scientist in D R D O if any possipilites to jion to D R D O if any possiplites means please guid me
Posted by:-E.Naveen.     On: Nov 28, 2014 - 3:53:09 PM
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Sir I had completed my Diploma in Computer Engineering I applied for CEPTAM 07, please send DRDO previous year question paper for Computer Engineering(Diploma)
Posted by:-Geetha satya sai.     On: Nov 28, 2014 - 12:35:08 PM
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plz send me last exam question papers and answer in computer science and engg
Posted by:-supriya bankar.     On: Nov 28, 2014 - 12:01:11 PM
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sir i am suppose to be in final semester after one month,kindly provide me important details relative to DRDO entrance examinations for Mechanical Engineering Thanking you
Posted by:-Anil Sahu.     On: Nov 27, 2014 - 1:20:30 PM
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sir, i am applied STA-B Post(01007)electrical engineering plz send me previous and model papers in this my email
Posted by:-KAMBALA VALLABHA RAO.     On: Nov 26, 2014 - 5:52:02 PM
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Sir , plz send me DRDO technical \'A\' subject COPA previous year question papers and syllabus
Posted by:-Rasmi.     On: Nov 26, 2014 - 11:34:47 AM
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Please send syllabus and previous question papers regarding ece diploma
Posted by:-ganesh.     On: Nov 25, 2014 - 6:53:48 PM
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sir i want cut hom mach tha no
Posted by:-nagesh.     On: Nov 24, 2014 - 10:11:33 AM
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Sir, i complet my iti in machinist trade can u sent me last year pratice set of drdo
Posted by:-Divakar shukla.     On: Nov 23, 2014 - 6:22:01 PM
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kuttha dengichuko
Posted by:-madda.     On: Nov 23, 2014 - 2:29:23 PM
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hello sir/madam, can u pls send me the previous years papers for STA B in electronics engineering on my id Thanku
Posted by:-kamini.     On: Nov 23, 2014 - 1:37:34 PM
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sir plz send me drdo privius year paper
Posted by:-Deependra.     On: Nov 23, 2014 - 10:28:42 AM
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plz send me last exam question papers and answer in computer science and engg
Posted by:-seetha lakshmi.     On: Nov 22, 2014 - 9:46:08 PM
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dear sir i had completed in iti in M Sc electronics i applied CEPTAM 07 , please send me drdo old question papers format or syallabus
Posted by:-amit.     On: Nov 21, 2014 - 2:55:06 PM
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