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Q. What do you mean by Signal multipath?
Signal multipath occurs with electromagnetic wave propagation via sky wave in the HF range. When the transmitted signal reaches the receiver through multiple propagation paths with different delays, signal fading may result. Both atmospheric noise and thermal noise become the additive noise at high frequencies. It is possible to have ionospheric scatter propagation in the frequency range of 30 to 60MHz, and tropospheric scattering in the range of 40 to 300MHz; but relatively large antennas are needed with a large amount of transmitted power, because of large signal propagation losses.
Q. Common-Drain JFET Amplifier? Figure (a) shows a CD JFET amplifier in which resistors R 1 , R 2 , and R SS are selected by the bias design, and capacitors CG and CS are chos
What makes them sine? Ans) Fourier tells that only a sine wave has no harmonic content. The math works out that if you have any wave shape other than a sign wave, you can brea
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Determine the current through each parallel branch of the system
Let both coherent ASK and coherent PSK systems transmit the same average energy per bit interval and operate on the same channel such that E b /N 0 = 18. Determine the bit-error p
Draw layout of hydro-electric power plant and illustrate it briefly. Explain the following: a. Types of power plants b. Selection of power Plants
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