ECET 310 Educational Tutor/ indigohelp

1. ECET 310 Educational Tutor/ indigohelp

2. ECET 310 Educational Tutor/ indigohelp ECET 310 Entire Course ECET 310 Week 1 Homework 1_1 Computer Science - General Computer Science  1. Add: (a) 60 dB + 25 dB= (b) 20 dBW + 5 dBW= (c) 22 dB - 4 dB= • ECET 310 Week 1 Homework 1_1 (DEVRY) • ECET 310 Week 1 Homework 1_2 (DEVRY) • ECET 310 Week 2 Assignment Homework 2_1 (DEVRY) • ECET 310 Week 2 Assignment Homework 2_3 (DEVRY)

3. ECET 310 Educational Tutor/ indigohelp ECET 310 Week 1 Homework 1_2 ECET 310 Week 2 Assignment Homework 2_1 Computer Science - General Computer Science 1. Assume that a receiver has a first amplifier stage with a 5KW input resistance, a gain of 300, an input audio signal of 20 mV, and an operating temperature of 27oC. When the amplifier is operating with a bandwidth first of 10 MHz • Computer Science - General Computer Science • 1 . Four frequencies are applied at the input of a non-linear amplifier. Write down all of the frequency components at the output of the non-linear device. Write down only the first three harmonics.

4. ECET 310 Educational Tutor/ indigohelp ECET 310 Week 2 Assignment Homework 2_2 ECET 310 Week 2 Assignment Homework 2_3 Computer Science - General Computer Science 1. The bandwidth of a series resonant circuit is 400 Hz. • 1. fCUTOFF = 130 KHz • T = 25  Sec • Draw the frequency spectrum of the output of the low pass filter.

5. ECET 310 Educational Tutor/ indigohelp ECET 310 Week 3 Assignment Homework 3_1 ECET 310 Week 3 Assignment Homework 3_2 Computer Science - General Computer Science 1. Draw the frequency spectrum at the output of the first balanced modulator. 2. If the filter is a low pass filter, draw the frequency spectrum at the output of the filter and amplifier 3. Draw the frequency spectrum at the output of the second balanced modulator. 4. If the filter is a low pass filter, draw the frequency spectrum at the output of the filter and linear power amplifier. 5. Find the value for the required Q for the first filter. • Computer Science - General Computer Science • 1. An AM signal has an unmodulated carrier voltage VC = 10VP, a load resistance of RL = 10, and a modulation index of m = 1. Determine: • Modulation

6. ECET 310 Educational Tutor/ indigohelp ECET 310 Week 4 Assignment Homework 4_1 ECET 310 Week 5 Assignment Homework 5_1 Computer Science - General Computer Science 1. Determine the Nyquist sample rate for a maximum analog input frequency of: (a) 4 KHz 10 KHz 2. Determine the dynamic range for a 10-bit sign-magnitude PCM code. • 1. Define FM. • 2. What parameter of the intelligence signal causes frequency deviation of the carrier? • 3. What parameter of the intelligence signal causes or determines the rate of carrier frequency deviation? • 4. Define modulation index for FM. • 5. What is the reason that FM requires wider bandwidth as compared to AM? • 6. What characteristics of FM signal are shown by Bessel Function Solution of FM signal?

7. ECET 310 Educational Tutor/ indigohelp ECET 310 Week 6 Assignment Homework 6_1 ECET 310 Week 7 Homework 7_1 Computer Science - General Computer Science 1. For a QPSK system and the given parameters, determine 2. Which system requires the highest Eb/No ratio for a probability of error of 10-7, four-level QAM or 8-PSK system? 3. Determine the minimum bandwidth required to achieve a P(e) of 10-4 for a 16-PSK system operating at 25 Mbps with a carrier-to-noise ratio of 10 dB • 1. For a 64-PSK modulator with an input data rate(fb) equal to 36 Mbps and a carrier frequency of 100 MHz, determine the minimum double-sided Nyquist bandwidth(fN) and the baud. Sketch the output spectrum.

8. ECET 310 Educational Tutor/ indigohelp