In which modulation schemes, the spreading of spectrum occurs?(a) Frequency modulation(b) Amplitude modulation(c) Frequency & Amplitude modulation(d) None of the mentionedI had been asked this question during an internship interview.This question is from Spread Spectrum, TDMA and FDMA in section Multiplexing and Multiple Access of Digital Communications

In which modulation schemes, the spreading of spectrum occurs?(a) Freq

1.	In which modulation schemes, the spreading of spectrum occurs?(a) Frequency modulation(b) Amplitude modulation(c) Frequency & Amplitude modulation(d) None of the mentionedI had been asked this question during an internship interview.This question is from Spread Spectrum, TDMA and FDMA in section Multiplexing and Multiple Access of Digital Communications
Answer» CORRECT choice is (a) Frequency modulation The explanation is: In modulation schemes such as frequency modulation and PULSE code modulation spreading of spectrum occurs but it cannot be CONSIDERED as types of spread spectrum technique.

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