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Consider a gsm uplink. the ms has 100 mw transmit power and the sensitivity of the bs receiver is -105 dbm.the distance between the bs and ma is 500 m.the propagation law follows the free space law up to a distance of dbreak=50m and for larger distances the receive power is similar to (d/dbreak)^-4.2. The transmit antenna gain is -7db the receive antenna gain is 9db. compute the fading margin
Consider the stable system represented by the differential equation: dx(t)/dt + 3x(t) = u(t) Determine the phase lag for this system if the input u(t) = sin3t.
design the controller and estimator so that the closed-loop unit step response to a command input has a rise time tr
There are three different beams and they asked us to choose which beam would you use to build an object that incurs high stress. Should I choose the beam with the lowest deflection or with the highest deflection
A plane wave in air with an electric field amplitude of 20 V/m is incident normally upon the surface of a lossless, nonmagnetic medium with Xr er = 25. Determine the following: a.) reflection and transmission coefficient
If it is possible to determine whether a circuit is in resonance given only the RMS values, explain how it could be done. If it is not possible, explain what further information you would have to have.
A half-wave dipole antenna has an input impedance Zant = 73.2 + j42.5 ohms. Design an open-ended shunt stub matching network to match this antenna to a 50ohm line.
Draw the logic diagram for the following Boolean expressions. The diagram should correspond exactly to the equation. Assume that the complements of the inputs are not available. a.) XYZ+X'Y'+X'Y'
The current in a 20 mH inductor is known to be i = 40 mA, t 0.
The circuit generates an output of 1 (0) when the third bit is received if the 3 bits have even (odd) parity; the circuit output is a don't-care for the first 2 bits. Construct an incompletely specified table for the circuit.
explain the use of the Op Amp as a difference amplifier and as a comparator. What are the distinctions between the ways each one is used.
we know Ktw=1 Nm(rad/s) and its's rated torque 30Nm for the synchronous frequency 60 H. If this motor is running at 60Hz, its load torque changes from 30 to 10 Nm, what is the new motor speed.
What are the rated full -load speeds of a 400HZ motor that may be connected for either two or four pole operation, assuming a full load slip of 4% for both cases
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