Spectrum of Multitone Signal Online Exam Quiz
Spectrum of Multitone Signal GK Quiz. Question and Answers related to Spectrum of Multitone Signal. MCQ (Multiple Choice Questions with answers about Spectrum of Multitone Signal
Any signal and its Hilbert transform are mutually orthogonal.
Options
A : TRUE
B : FALSE
C : -
D : -
Colpitts oscillator is used in frequency modulation.
Options
A : TRUE
B : FALSE
C : -
D : -
Find the step size of a signal with peak to peak amplitude of 4V and is quantized into 64 levels?
Options
A : 32.3 x 10-3
B : 30.23 x 10-3
C : 62.5 x 10-3
D : 53.3 x 10-3
Frequency fogging is used to reduce noise in a carrier system.
Options
A : TRUE
B : FALSE
C : -
D : -
If the step size of a system is 0.0625, find its quantization power?
Options
A : 3.25 x 10-3
B : 3.25 x 10-4
C : 3.25 x 10-2
D : 3.25 x 10-1
In a frequency modulated signal, the power ___ as the modulation index increases.
Options
A : remains constant
B : increase
C : decrease
D : becomes 0
Mostly used radio receivers are?
Options
A : pulsed receivers
B : CW receivers
C : TRF receivers
D : super heterodyne receivers
Pre-emphasis circuit is used __
Options
A : before detection
B : after detection
C : before encoding
D : after encoding
The difference between phase and frequency modulation __
Options
A : lies in the poorer radio response of phase modulation index
B : lies in the different definition of modulation index
C : is too great to make the two systems compatible
D : is purely theoretical
The frequency deviation is proportional to both amplitude and frequency in the phase modulated signal.
Options
A : TRUE
B : FALSE
C : -
D : -