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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.
what is a verniercallipar?what is its uses in labs?why it is using o meassure he diameer and volume of cylendars?what is its least count?what is zero error?
Calculate the resistance of a 2 km length of aluminium overhead power cable if the cross-sectional area of the cable is 100 mm 2 . Take the resistivity of aluminium to be 0.03x10 -
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Write a short summary of the AM superhet receiver, in exacting consider how the demodulation stage works, and remark on the choice of component values used.
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How you write this number in letters. 20,000.000.000
Q. A negative impedance converter is used, as shown in Figure. Show that the load current i L is given by v in /R, which is independent of Z L . Note that since the load sees a cu
Level 1 is means of sending bit streams over a physical path. It uses times lot 16 of a 2 M bit/s PCM system or times slot 24 of a1.5 M bit/s system. Level 2 performs functions
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