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A satellite is operated at C-Band (6 GHz in the uplink and 4 GHz in the downlink) for video broadcasting. Calculate the free-space loss experienced at this frequency, if the satellite is in geostationary orbit (GEO), located at 36 000 km above ground level. What is the minimum EIRP needed to provide adequate reception, assuming a receiver sensitivity of -120 dBm and effective antena gain of 20 dBi?
C=1000 pF R=10 kohms a. Determine A = Vo/Vi at f = fc for the high-pass filter. b. Determine A = Vo/Vi at two octaves above fc. Is the rise in Vo significant from the f = fc level
The capacitance of a capacitor formed by two parallel metal plates each 200 cm2 in area separated by a dielectric 4 mm thick is 0.0004 microfarads. A p.d. of 20,000 V is applied. Calculate (a) the total charge on the plates
It is required to design the DC motor dedicated to carry two wagons underground railway train. Each wagon is supposed to carry a maximum of 20 persons. The power utility is supplying the railway by 700 V DC source capable to deliver enough curren..
What is the data rate of a digital electrical communication system that uses 16 voltage levels to carry multiple bits with one voltage level, where each voltage level is kept at that level for a duration of 2 ms
The end of the plates is 30 cm from the tube screen. The kinetic energy of the electrons is 2.80 keV. If a potential difference of 25.0 V is applied across the deflection plates, by how much will the point where the beam of electrons strikes the s..
Perform the following addition or subtraction of the given numbers using 8-bit 2's complement representation of the numbers. Parts (a) and (b) are given in decimal, while parts (c)-(e) are given in 8-bit 2's complement. Indicate in each case wheth..
The balanced 60Hz waveform sample that we must modulate is the point where t=4.4ms. The DC voltage from rail to rail is 300V. assume the q axis and a axis are in same direction. The use of mathCAD is recommended.
Three single-phase transformer are used to form a three-phase transformer bank rated 13.8kV(delta)/120kV(wye). One side is connected to a three-phase load of 12 MVA at 0.8 power factor lagging. Determine the turns ratio of each transformer
A 2.0 kg particle moves along the x axis. Its position varies with time according to x = t + 3.0t^3, Where x is in meters and t is in seconds. (a) Find the work done on the particlein the interval t = 0 to t = 1.70s.
1) During a transient fault and a permanent fault on the transmission line of a power network, mention the sequence of a line circuit breaker's operation. 2) During a network fault, the voltage and active power of a synchronous generator drops
The magnitude of the current in a RL circuit decreases at a rate of 2000 A/s at t=0 and 100 A/s at t=.2s. At what time has the energy stored in the inductor decreased 1 percent of its intial value.
Give the zero-input or natural response yn(t), in terms of constants K, and K2. Give the general form of the forced response y phi (t), in terms of a constant beta. Find beta and give the exact forced response y phi (t).
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