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Consider a GSM uplink. The MS has 100-mW transmit power, andthe sensitivity of the BS receiver is -105 dBm. The distance between the BS and MS is 500 meters. The propagation law follows the free space up to a distance ofdbreak = 50 meters, and for larger distances the receive power is similar to(d/dbreak)-4.2. Transmit antenna gain is -7dB; the receive antenna gain is 9 dB. Compute the available fading margin.
Consider a BPSK signal where each bit is represented by a triangular pulse with width T and height A. What is the "energy per bit" for this BPSK pulse with A=7V and T=0.008s
Which one of the following statements is correct?
Design a DC power supply that provides -95v +/- 5v to a 2 amp load (energy absorber). The input source is a 100 volt peak sinusoid, 60 Hz. You may use any basic circuit element. State the values of all circuit elements (in ohms, farads, etc).
The minimum stopping distance for a car traveling at a speed of 30m/sand is 60 m including the distance traveled during the driver's reaction time of 0.53 s. What is the minimum stopping distance for the same car traveling
Gaussian White Noise with Power Spectral Density Sn(f) = 10 mu W/Hz is applied to a linear system with impulse response h(t) = exp(- |5t|)u(t)cos(2 phi 10t) Write the equation for the Power Spectral Density of the noise passed through the system
A second method of development will recover only 50% of the ore deposit , but it will cost only $15 per ton of material removed.Subsequent processing of the removed ore recovers 300 pounds of metal from each ton of processed ore and cost $40 per ..
Design a circuit that has an input impedance of an inductor value of 3mH if all that is available is resistors,capactiors, and ideal op amps.
1.)An op amp requires the design equation Vout = 5Vin & 2Vref + AgVg. What is the value of Ag 2.)The voltage dropout of a voltage regulator is 1.6 V. If a 16 V output is required, what is the minimum regulator input voltage
Suppose that a current x(t) = e^-0.5t for t > or equal to 0, and zero otherwise is applied to a discharged capacitor of capacitance C =1F at t = 0 sec. What would be the voltage in the capacitor at t= 1 seconds
Suppose we measured a resistance of about 1.4 ? across a graphite stick, used calipers to measure the cross-section of the stick (7 mm by 5 mm) and measured the distance between the multimeter test leads (54 mm).
The source-free circuit depricted in Fig. 9.1 is constructed using a 10mH inductor, a 1mF capacitor, and a 1.5k ohms resistor. a) Calculate alpha ( neperfrequency or exponential damping coefficient), omega-sub-delta (natural resonance frequency)
Find the system transfer function H(s) = Y(s)/X(s) if the input x(t) and the output y(t) of the system are related by the equation y(t) + 3y(t) = x(t) - x(tau)d tau. Assume y(0) = 0.
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