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Using a 500 Ohm resistance, design an RC low-pass filter that would attenuate a 120-Hz sinusoidal voltage by 20 dB with respect to the DC gain.
The gain of the antennas must be increased when the TDMA system described in part (d) is used because the bit rate is higher than with FDMA and the noise power in the receiver is therefore higher
A superheterodyning FM receiver was originally designed and built to operate in the US only. The FM broadcasting band in the US is from 87.5 MHz to 108 MHz. The intermediate frequency of the receiver is fI = 10.7 MHz. This receiver has a poor RF B..
A long hallway has three doors, one at each end and one in the middle. A switch is located at each door to operate the incandescent lights along the hallway. Label the switches A, B, and C.
An unmanned X-43A scramjet test vehicle has achieved a maximum speed of Mach number 9.68 in a test flight over the Pacific Ocean. Mach number is defined as the speed of an object divided by the speed of sound.
A single-phase, 60-Hz power will be transmitted through the transmission line Each subconductor's radius is 10 cm. There are two configurations, the first one is setting subconductors A and B as a bundle, and C and D as another bundle
Brown and Vranesic. Problem 6.28 - Repeat Problem 6.26 using T flip-flops. Design a three-bit counterlike circuit controlled by the input w. If w = 1. then the counter adds 2 to its contents, wrapping around if the count reaches 8 or 9.
Asuuming that an 8-bit ADDC channel accepts analog input ranges from 0 to 12 volts, determine the following: a) number of quantization levels b) step size of the quantizer c) Quantization level when the analog voltage is 9.25 volts
Discuss how you could build a microwave power amplifier with a power rating of 1kW with microwave power transistors with an upper power limit of 100W each. Explain how the speed of an aircraft can be measured by using pulse radar techniques.
a lowpass butterworth filter has a corner frequency of 1 khz and a roll-off of 24 db per octave in the stopband. If the output amplitude of a 3 khz sine wave is .1 V, what will be the output amplitude of a 20 khz sine wave if the input amplitudes ..
Compensation occurs when a semiconductor is doped with both donor and acceptor dopants. Using the fact that n0p0=ni^2 (mass action law) and p0+Nd=n0+Na (charge neutrality assuming all dopants are ionized)
For the system described by the following equations, with the input x(t) and output y(t), determine which are invertible systems and which are noninvertible. For the invertible systems, find the input-output relationships of the inverse system.
Resistance=0.09ohm/km Inductance=1.4mH/km Capacitance=8.8x10-3 uF/km. Calculate the sending-end power if the receiving-end voltage is 132kV and the receiving-end power is S2=100+j60 MVA. Assume a pi-equivalent circuit.
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