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In a broadcasting system, the transmitted signal power is 50 kW, the attenuation of the signal is 155 dB (in passing from the input to the transmitting antenna to the output of the receiving antenna), and the available mean power-spectral density of the noise in the system from all sources has a mean power spectral density level 10-18 W/Hz (as if added at the receiving antennas output). The bandwidth of the message signal m(t) is 8 KHz. Determine the output SNR is the modulation chosen is (i) DSB-SC, (ii) USB, (ii) conventional AM with a modulation index of 0.85, assuming 5. 2 6 pe

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