The bandwidth for commercial broadcast FM is 200 kHz 30 kHz

The bandwidth for commercial broadcast FM is 200 kHz 30 kHz 10 kHz 5 kHz In order to correctly represent the analog information signal, the sampling rate must be equal to highest frequency in the analog signal two times the highest frequency in the analog signal two times the average frequency in the analog signal four times the highest frequency in the analog signal ) In a PCM system, quantization error can be reduced if resolution is: 2*Qe = resolution; resolution must be. increased reduced equal to 1 volt 1 mV The quantization error can be reduced in a PCM signal by. increasing the signal voltage reducing the signal voltage reducing the number of quantization levels increasing the number of quantization levels If the number of levels is increased in a digital modulator, it will cause the data rate to. increase decrease remain same decrease by three times

Solution

option 1 is correct one for first question.30kHz is enough for bandwidth but remaining enable space for signal deviation from center frequency.

option 2 is correct one for second question .sampling rate is also called nyquist rate.To avoid aliasing sampling frequency greater than two times of highest frequency.