QAM is a combination of(a) ASK and FSK(b) ASK and PSK(c) PSK and FSK(d) None of the mentionedThe question was asked by my school principal while I was bunking the class.My doubt is from Bandwidth Efficiency Plane and Bandwidth Efficient Modulation in section Modulation and Coding Trade-off of Digital Communications

QAM is a combination of(a) ASK and FSK(b) ASK and PSK(c) PSK and FSK(d

1.	QAM is a combination of(a) ASK and FSK(b) ASK and PSK(c) PSK and FSK(d) None of the mentionedThe question was asked by my school principal while I was bunking the class.My doubt is from Bandwidth Efficiency Plane and Bandwidth Efficient Modulation in section Modulation and Coding Trade-off of Digital Communications
Answer» RIGHT ANSWER is (b) ASK and PSK Easy explanation: QAM is a combination of both ASK and PSK and is ALSO called as amplitude PHASE keying.

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