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(a) The speech quality for a particular mobile communication system is just acceptable when the received power at the terminals of the mobile receiver is -104 dBm. Find the maximum acceptable propagation loss for the system, given that the transmit power at the base station is 30W, base station feeder losses are 15 dB, the base station antenna gain is 6 dBi, the mobile antenna gain is 0 dBi and the mobile feeder losses are 2 dB. Express the field strength at the receiver antenna in dBμVm-1
(b) Calculate the maximum range of the system described in (a) using: A. the free space loss B. the plane earth loss, assuming a frequency of 2 GHz and antenna heights of 15 m and 1.5m
Determine the distribution of the number of customers waiting in the queue.
Experiment by changing the amplitudes of the modulating tones, and by adding a third tone to the modulating signal. First establish what you expect , then confirm by computer simulation.
A parallel plate capacitor is made of plates in the shape of equilateral triangles with sides of length 15 mm. The plates are separated by titania ceramic of thickness 1.55*10^-6m. What is the capacitance
Generate 1000 random variables that are normally distributed with mean 0 and standard deviation 50. Pick a number at random out of these random variables. Hint: Leverage the capabilities of the for loop to simplify the code.
Discuss these possible reasons, indicating which are the most important: The field is so young; such different needs; there are so many types of systems; and people with widely different backgrounds are developing.
Two random variables X and Y have a joint probability density function given by f(x,y) =kxy 0
1. Obtain a minimal hazard free SOP expression for f(A,B,C,D)=fm(0,1,5,6,8,11,13,14,15),d(2,3,10). 2.Implement f(A,B,C,D)=åm(0,4,5,7,10,13,14,15),d(1,2,9) using a minimal number of 1-of-2 MUXs and NOT gates (if needed).
A control system is needed to control a small shopping center parking lot lighting system and the exterior lighting for the building. The design specifications require that the parking lot lighting and the exterior lighting turn on at dusk automat..
A touch sensor base on a piezoresistor built into a micromechanical cantilever made of silicon is cnnected in a Wheatstone-bridge configureation with a Vo = 1 volt. If L = 1.44cm and W = 1 cm
Find the electric field of a long line charge at a radial distance where the potential is 12V higher than at a radial distance \(r_{1}=1m\) where the magnitude of the electric field is 5V/m .
If the capacitor in the previous problem has a plate separation of 1 mm, what is the average displacement current, to the nearest tenth of a microamp, during that time period Assume a resistance of 180006 ohms and an applied voltage of 14 volts.
Power Electronics: A Single-Phase Bridge Rectifier, A single-phase bridge rectifier has a purely resistive load R=10 Ohms, the peak supply voltage Vm=170 V
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