ECET 310 Entire Course For more classes visit ECET 310 Week 1 Homework 1_1 ECET 310 Week 1 Homework 1_2 ECET 310 Week 2 Assignment Homework 2_1 ECET 310 Week 2 Assignment Homework 2_3 ECET 310 Week 3 Assignment Homework 3_1 ECET 310 Week 3 Assignment Homework 3_2 ECET 310 Week 5 Assignment Homework 5_1 ECET 310 Week 7 Homework 7_1

ECET 310 Week 1 Homework 1_1 For more classes visit Computer Science - General Computer Science 1. Add: (a) 60 dB + 25 dB= (b) 20 dBW + 5 dBW= (c) 22 dB - 4 dB= 2. Convert: (a) 65 W into dB = (b) 10 dB into watts

ECET 310 Week 1 Homework 1_2 For more classes visit 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. 2. Find out the frequency components at the output of a resonant-tuned circuit tuned at 1200 KHz with a bandwidth of 15 KHz and connected at the output of a non-linear amplifier (mixer).

ECET 310 Week 2 Assignment Homework 2_1 For more classes visit 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, find (a) therms input noise levels (b) the audio output levels the rms output noise levels

ECET 310 Week 2 Assignment Homework 2_2 For more classes visit 1. fCUTOFF = 130 KHz T = 25  Sec Draw the frequency spectrum of the output of the low pass filter. 2. Draw the frequency spectrum of the output if the filter is: 14 marks A high pass filter fC = 20 KHz

ECET 310 Week 2 Assignment Homework 2_3 For more classes visit 1. The bandwidth of a series resonant circuit is 400 Hz. (a) If the resonant frequency is 4000 Hz, find Q. (b) If Ω, what is the value of XL at resonance? Find the inductance L and capacitance C of the circuit.= 2. The frequency response curve for an RLC circuit is shown in the diagram. (a) Determine Q and bandwidth for the frequency response curve shown. (b) For μF, determine L and R for the resonant circuit. Determine the applied voltage.

ECET 310 Week 3 Assignment Homework 3_1 For more classes visit 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 (a) PC = Vc2/2/2(10)= PSB =PT-PC/2= (b) Total power in the AM signal 2. Find the modulation index corresponding to the given trapezoidal pattern for the AM signal. 3. You are tuned to an AM station at 1200 KHz. Write down the frequency components of the received AM signal.

ECET 310 Week 3 Assignment Homework 3_2 For more classes visit 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. 6. Find the value for the required Q for the second filter

ECET 310 Week 4 Assignment Homework 4_1 For more classes visit 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. If you are tuned to an FM station at a frequency of MHz, show the bandwidth allocation for two adjacent stations.

ECET 310 Week 5 Assignment Homework 5_1 For more classes visit 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. 3. Determine the minimum number of bits required in a PCM code for a dynamic range of 80 dB. What is the coding efficiency? 4. For a resolution of 0.04 V, determine the voltages for the following linear seven- bit sign magnitude PCM codes

ECET 310 Week 6 Assignment Homework 6_1 For more classes visit 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. 2. Determine the bandwidth efficiency for the following modulators: (a) QPSK = (b) 64-QPSK = (c) 128-QAM= 3. A radio channel has a bandwidth of 10 KHz and a SNR of 15 dB. What is the maximum data rate that can be transmitted: (a) Using any system?

ECET 310 Week 7 Homework 7_1 For more classes visit 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