Need a so ABCIt is required to design a mobile system of 3 sectored antennas in the area of 3 exponent loss the system isdoallocated a bandwidth of 45MHz with a channel bandwidth of 30 KHz where the signal/noise ratiobetween co-channels is found 50dB, if 90% of the available system bandwidth is allocated to voicechannels and 10% is allocated to control channels. Calculate:1. The number of voice and control channels/cell2. The total system capacity if the clusters are reused 10 times.Sa to3. Show that your result is reliable and acceptable.72

Step 1:3. Reliability and Acceptability of the ResultReliability of results:1.Channel Allocation:…

Answered: ABC It is required to design a mobile…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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3. In an FM signal that modulating frequency is a 1.5-kHz sine wave. The carrier frequency is 1000 kHz. The frequencies of the third significant sidebands are ___ and ___ kHz.
c) The superheterodyne receiver (SuperHet) is an architecture that enables the same receiver to pick-up and demodulate signals at different carrier frequencies. (i) Draw a detailed and fully labelled block diagram of a single-stage SuperHet receiver and briefly describe its operation.
Problem 6. Text Problem 2.3 (revised). Suppose for a certain FM system the demodulated SNR is 34 dB with a receiver threshold of 16 dB. The baseband signal has a 5 kHz bandwidth. The noise density level is No -110 dBW/Hz. =- a. Determine the FM index, 3. b. What RF bandwidth is needed for transmission for this system. c. Find the required received carrier power level.
Select the correct statement regarding transmission systems. a. only unguided systems need to worry about EM noise since most guided system use signal balancing or shielding b. signal attenuation is independent of the baseband or carrier frequency c. the type of modulation method selected will influence digital data capacity d. all statements are correct
Draw a block diagram of a superheterodyne AM receiver. Assume an incident signal and explain briefly what happens at every stage.
41. Noise is typically narrow spikes of voltage with high frequencies.Group of answer choices True False 42. SCA signal can be transmitted at 67-kHz subcarrier.Group of answer choices True False 43. In FM, as the modulating signal amplitude increases, carrier frequency also increases proportionately.Group of answer choices True False 44. The greater the amplitude of the modulating signal, the higher the frequency deviation rate.Group of answer choices True False 45. With no modulation, the carrier frequency will shift above or below its normal frequency.Group of answer choices True False 46. The higher the frequency of the modulating signal, the greater the frequency deviation of the carrier signal.Group of answer choices True False
B. DSBSC modulated signal is transmitted over a noisy channel, with the power spectral density of noise being as shown in Figure 1. The Costas receiver shown in figure 2 is used to recover the signal. (Assume: () phase shift is constant value arrange between zero to 90 degree) 1. Derive the demodulated signal at upper and lower sides 2. Determine the maximum power of the demodulated signal at upper side 3. Determine the signal to noise ratio for the demodulated signal at upper side lehanel Podut modulator Los fite Denodlatad Vitage controlled Oll Pra phase-shiter Pudiet meduletar Loepes Figure 1 Figure 2
Answer all the questions.
2. You are requested to design a military vehicle radio using VHF WinRadio, which uses frequency range 40 - 45 [MHz] (uplink) and 45 - 50 [MHz] (downlink). Calculate the minimum relative (fractional) bandwidth of the single VHF WinRadio antenna to cover both uplink and downlink frequency range in order to send/receive signal with the single VHF WinRadio antenna.
d) The superheterodyne receiver (SuperHet) is an architecture that enables the same receiver to pick-up and demodulate signals with different carrier frequencies. Draw a detailed and fully labelled block diagram of a single stage SuperHet receiver and briefly describe its operation. i) ii) Calculate the image channel frequency for a SuperHet receiver tuned to a 1075 kHz signal with an intermediate frequency of 320 kHz.
A signal is transmitted at 1 W from an antenna. Due to channel attenuation, the received signal power is 1 mW. Calculate the change in signal power in terms of decibels. (The answer should be one sentence saying "X" dB amount of decrease is observed.)
Design a wideband FM transmitter to achieve an output carrier frequency of 1.7 GHz, and an output frequency deviation of Afo = 15 kHz using heterodyning, frequency multiplication, and bandpass filter operations. At the front-end of the transmitter you have a narrowband FM modulator with a carrier frequency of fe = 85 MHz, and a frequency deviation of Afi = 150 Hz. The input message waveform has a bandwidth of W = 15 kHz. For this system specifications: 1. For each stage of the design tabulate the ß, carrier frequency, frequency deviation, and Carson bandwidth of the corresponding waveform 2. Specify the center-frequencies and the bandwidths of the BPF's involved. 3. Determine the implementation of the frequency multiplication and het- erodyning operations, specifying the components involved and the block diagram for each component.

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