A narrow band noise can exist in _________(a) AM only(b) PCM only(c) FM only(d) AM and FM bothThe question was posed to me during an interview.Enquiry is from Generation of DSBSC Waves topic in chapter Double Sideband Suppressed Carrier Modulation of Analog Communications

A narrow band noise can exist in _________(a) AM only(b) PCM only(c) F

1.	A narrow band noise can exist in _________(a) AM only(b) PCM only(c) FM only(d) AM and FM bothThe question was posed to me during an interview.Enquiry is from Generation of DSBSC Waves topic in chapter Double Sideband Suppressed Carrier Modulation of Analog Communications
Answer» Correct choice is (d) AM and FM both To explain: Narrow band filter is used to ISOLATE a narrow band of frequencies from a WIDER bandwidth signal. It is a COMBINATION of band pass and band reject filter. So it can be used in both AM and FM to pass a band of frequencies or to attenuate a band of frequencies.

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A narrow band noise can exist in _________(a) AM only(b) PCM only(c) FM only(d) AM and FM bothThe question was posed to me during an interview.Enquiry is from Generation of DSBSC Waves topic in chapter Double Sideband Suppressed Carrier Modulation of Analog Communications

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