Digital Communications M Ary Modulation And Amplifiers Online Exam Quiz
Digital Communications M Ary Modulation And Amplifiers GK Quiz. Question and Answers related to Digital Communications M Ary Modulation And Amplifiers. MCQ (Multiple Choice Questions with answers about Digital Communications M Ary Modulation And Amplifiers
Class B linear amplifiers have maximum power efficiency of
Options
A : 50%
B : 75%
C : 78.5%
D : None of the mentioned
Which modulation technique have the same bit and symbol error probability?
Options
A : BPSK
B : DPSK
C : OOK
D : All of the mentioned
Which has 50% maximum power efficiency?
Options
A : Class A
B : Class B
C : Class AB
D : None of the mentioned
Which generates high distortion?
Options
A : Class A
B : Class B
C : Class C
D : Class AB
Which has the maximum power efficiency?
Options
A : Class A
B : Class B
C : Class C
D : Class AB
An amplifier uses ______ to take input signal.
Options
A : DC power
B : AC power
C : DC & AC power
D : None of the mentioned
For non coherent reception of PSK _____ is used.
Options
A : Differential encoding
B : Decoding
C : Differential encoding & Decoding
D : None of the mentioned
In M-ary FSK, as M increases error
Options
A : Increases
B : Decreases
C : Does not get effected
D : Cannot be determined
In M-ary FSK as M tends to infinity, probability of error tends to
Options
A : Infinity
B : Unity
C : Zero
D : None of the mentioned
Free space in idealization which consists
Options
A : Transmitter
B : Receiver
C : Transmitter & Receiver
D : None of the mentioned
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