Digital Communications Digital Bandpass Modulation Techniques Online Exam Quiz
Digital Communications Digital Bandpass Modulation Techniques GK Quiz. Question and Answers related to Digital Communications Digital Bandpass Modulation Techniques. MCQ (Multiple Choice Questions with answers about Digital Communications Digital Bandpass Modulation Techniques
In amplitude phase keying each phase vector is separated by
Options
A : 90
B : 0
C : 45
D : 180
Which modulation scheme is also called as on-off keying method?
Options
A : ASK
B : FSK
C : PSK
D : GMSK
The detection method where carrier’s phase is given importance is called as
Options
A : Coherent detection
B : Non coherent detection
C : Coherent detection & Non coherent detection
D : None of the mentioned
The FSK signal which has a gentle shift from one frequency level to another is called as
Options
A : Differential PSK
B : Continuous PSK
C : Differential & Continuous PSK
D : None of the mentioned
The real part of a sinusoid carrier wave is called as
Options
A : Inphase
B : Quadrature
C : Inphase & Quadrature
D : None of the mentioned
The coherent modulation techniques are
Options
A : PSK
B : FSK
C : ASK
D : All of the mentioned
Antipodal signal sets are those vectors that can be illustrated as
Options
A : Two 180 opposing vector
B : Two 90 opposing vector
C : Two 360 opposing vector
D : None of the mentioned
The transformation of the waveform into a single point in signal space is called as
Options
A : Vector point
B : Predetection point
C : Preamplification point
D : Transformation point
Wavelength and antenna size are related as
Options
A : ?/2
B : ?/4
C : 2?
D : 4?
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