If a signal to interference ratio of 16 dB is required for satisfactory forward channel performance of a cellular system, what is the frequency reuse factor and cluster size that should be used for maximum capacity. Consider the path loss exponent as n = 4 and n = 3. Assume that there are 6 co-channels cells in the first tier, and all of them are at the same distance from the mobile. Use suitable approximations.

Describe the properties of a system which converts its input signal into the even part of it as output.

a) As an Engineer you are to design a single stage JFET Amplifier. Explain in your own words its operation , identifying each components and their functions .

b) With your knowledge and understanding in MOSFET , explain electrically with graph supporting your answers , the three regions of operation of a MOSFET.

please answer all.thank you.

1)Explain the need of analog and digital modulation in communication systems.
2)How modulated signals can be recovered through coherent detection of carrier. Draw suitable diagram and mathematical expressions.What is meant by over modulated carriers.
3)Drive an expression for transmission efficiency of A.M wave. Under what circumstances carrier wave reversal take place.
4)How SSB-SC modulated waves can be produced. Elaborate your answer with suitable diagram.
5)A device is sending out data at the rate of 1000 bps.
(a) How long does it take to send out 10 bits?
(b) How long does it take to send out a single character (8 bits)?
(c) How long does it take to send a file of 100,000 bits.
     6) What is relationship between phase and frequency modulation .Write complete mathematical expression and diagrams.
      
       7) For a continues time signal                    [CLO-3]
               X(t)=8cos 200πt
a)Determine the nyquist rate required to avoid aliasing.
b)If sampling frequency f=500 Hz , what is discrete time signal x(n)qx(nTs) obtained after sampling.
8) Figure shows periodic rectangular wave form. Find its Fourier series representation.[CLO-3]

9) Determine the nyquist sampling rate and interval for following signals.[CLO-3]

Using full adders and some other gates, design subtractor that subtracts an 8-bit binary number [Y7 …. Y0] from 8-bit binary number [X7 … X0]. Write necessary equations. Draw detailed circuit diagram and explain steps & write verilog code

please answer this question in as much detail as possible

Jupiter and its four large Galilean moons are sometimes termed as a ‘mini-solar system’ because Jupiter is composed of mainly hydrogen and helium like stars and the Galilean moons seem like planets revolving around it. The total angular momentum of a system is contributed by the sum of orbital and rotational angular momenta of the central body and the bodies orbiting around it.

i) Derive an equation for rotational angular momentum and calculate the same for the Solar System and the Jupiter system. (Ignore the contribution of all satellites, asteroids and dwarf planets for the Solar System and the smaller Jovian satellites for the Jupiter system)

ii). Derive an equation for orbital angular momentum and calculate the same for the Solar System and the Jupiter system. (Ignore the contribution of all satellites, asteroids and dwarf planets for the Solar System and the smaller Jovian satellites for the Jupiter system) c. Explain how this analogy of the ‘mini-solar system’ breaks down.

With your knowledge and understanding in MOSFET , explain electrically with graph
supporting your answers , the three regions of operation of a MOSFET

Develop and explain the operation of project chater data flow diagram

Design an experiment setup for determination the time constant of a thermistor?

WHAT IS THE PSEUDOCODE OF THE FOLLOWING PROBLEM?

Design a microcomputer system using a uP 8086 10 Mhz. This system must have a Coprocessor 8087, a parallel connector, a serial connector, ADC and DAC connector for data conversion, a 16 byte seven segment display, a 64-key matrix keyboard, a USB connector thru a DMA for high speed data transfer. A special connector to connect a printer. The system must have an interrupt controller to handle all the I/O interface. The main memory size will be 1 Mbyte.

Show all the diagrams needed to construct your design including all the I/O interface and devices connected, show a memory map and the type of memory you will need for you design including the configuration and decoding system. You must include the programming needed for set up the complete system. Use pseudo code for each driver and program each of the interface needed.

Can a 6,000 watt step down transformer power a house?

Derive the wave propagation equation for particle motion collinear with the direction of propagation. Assume a homogeneous, isotropic, linear-elastic, infinite, continuum medium. Follow your class notes, and clearly identify all assumptions made along the way. Then, assume the solution to the wave equation, i.e., the particle motion, replace into the differential equation and …. conclude!

1.)

A.) In a 5V system if you were asked to take one input HIGH and another LOW what would you do (i.e. where would you connect them)?

B.) If Vcc is 5.0V in CMOS logic, what are the acceptable high and low levels for the inputs?

C.) If Vcc is 5.0V in CMOS logic, what are the acceptable high and low levels for the outputs?

D.) You can directly connect any of the ICs from one logic family to another logic family (i.e. CMOS, TTL, LVTTL, HCMOS, etc.) together without concern that their input and output logic levels will be compatible: True or   False

E.) In any logic family would .25V be considered a logic low?    Yes or No

A 3 phase 50Hz overhead line has the following constants: R/phase=2ohms; Xl/phase=10ohms and Y/phase=4x10^-4 siemens. The line is supplying a balanced load of 24000 KVA, 0.8 pf lagging at 66KV. Compute for the sending end voltage, sending end current and efficiency of the line using:

a.Nominal T Method

b.Nominal pi Method

c.Rigorous Method