Consider a desired received signal with power spectral density shown below: (a) If the receiver front end has an ideal response with bandwidth 500 kHz and a noise temperature of 375K, what is the received signal-to-noise ratio (SNR) in dB? (b) Now if the received signal is passed through an ideal low pass filter with bandwidth 125 kHz what is the received signal-to-noise ratio (SNR) in dB?

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