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The power density 50km from a transmitting antenna is 0.5 uW/m^2. If the frequency is 2 GHz and the antenna gain is 30 dB, determine the transmitter power.
Use a 74LS283N Adder chip and a 74LS86N XOR chip. Simulate the circuit in Multisim and test enough input combinations that you are sure the circuit is working properly. Make sure you test in all theranges of numbers that are possible.
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
For a single frequency sine wave modulating signal of 3 KHz with a carrier frequency of 36 MHz, what is the spacing between sideband
A circuit is needed to display a 4-bit value on the LEDs of the logic designer. This value can come from two different sources. Design a circuit using four 2-to-1 multiplexers to select which of the two values to display on the LEDs.
An 8mm thick brass [E=83 GPa; v = 0.33] plate is subjected to biaxial stress with sigma x = 180 MPa and sigma y = 65 MPa. The plate dimensions are b = 350 mm and h = 175 mm.
Consider a zero-phase sine function, x(t), with frequency ?=1.3rad/sec. What is the minimum positive time shift needed to turn this function into a zero-phase cosine of the same frequency
Design a 2-digit 24 second "shot-clock" countdown timer with pushbutton controller.
A silicon (ni= 10^10 cm^-3) p-n junction diode has a maximum electric field of -10^6 V/cm and a depletion layer width of 1 um. The acceptor density in the p-type region is four times larger than the donor density in the n-type region.
When an object is placed 110 cm in front of a spherical refracting surface with a -36 cm radius of curvature, the image distance is +290 cm. If the index of refraction of the surrounding material is 2.1, what is the index of refraction of the refr..
Design a Moore sequential machine that has one input X and one output Y. Whenever X changes from 0 to 1, Y should become 1 for two clock cycles and then return to 0 - even if X is still 1. For example, given an input sequence X=0110101001.
How to Combine the following expressions into a single sinusoid and plot both the combined and original expressions in Matlab across 2 periods. a) 2cos(3t)-cos(3t-pi/4) b) sin(2t- pi/4) + 2cos(2t-pi/3) c) cos(t) - sin(t) d) 10cos((pi*t) + pi/3) + ..
Second order unity gain Tschebyscheff low pass filter. The task is to design a second order unity gain. Tschebyscheff low pass filter with a corner frequency of fc = 12.5kHz and a 3dB passband ripple. Determine C1, C2, R1, and R2.
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