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From a source with Pin = 2.4 mW, we want to get Pout = 60 mW at a distance l = 20 km from the source. α for the transmission line is given to be 2.3 dB/km. The available amplifiers have adjustable power gain, but are subject to two limitations: (i) the input signal power must be at least 1 µW to overcome internal noise, and (ii) the output signal power must not be greater than 1 W to avoid nonlinear distortion. Design an appropriate system.
1) Assume that we are given the continuous-time signal xa (t) = xa1 (t) + xa2 (t) + xa3 (t), where, xa1 (t) = 2 + cos3 (2pf1 t + p 3 ) + 2 cos(2pf2 t), xa2 (t) = 2 cos(2pf3 t)
The term representing the energy stored in the coil may be written in terms of the inductance of the coil as... The energy stored in the coil increases with the square of t
Figure show two first-order triangular finite elements used to solve the Laplace equation for electrostatic potential. Find a local S -matrix for each triangle, and a global S -m
What is the use of modem control unit in 8251? The modem control unit handles the modem handshake signals to coordinate the communication among the modem and the USART.
how to connect some DG together?
application and demerits
Draw and explain the circuit of feedback amplifier
The no-load and blocked-rotor tests on a three phase, wye-connected induction motor yield the following results: • No-load test: line-to-line voltage 400 V, input power 1770 W,
Q. Explain the function of time base generator in CRO. Sol. Oscilloscopes are used to display a waveform that varies as a function of time. If the waveform is to be accuratel
Q. An op amp has a finite gain of only 50, but is otherwise ideal. For the inverting-amplifier circuit of Figure, if R 2 = 20 k, what value of R 1 would be needed to give a gain
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