Related Questions

Which of the following performs modulation and demodulation?
A coaxial cable
B modem
C fiber optic
D satellite
Demodulation is done in ___________
A Receiving antenna
B Transmitter
C Radio receiver
D Transmitting antenna
An AM receiver uses a diode detector for demodulation. This enables it satisfactorily to receive
A Single-sideband, suppressed-carrier
B Single-sideband, reduced-carrier
C ISB
D Single-sideband, full-carrier
Demodulation is a process of
A converting analog to digital signals
B converting digital to analog signals
C multiplexing various signals into one high speed line signals
D performing data description.
Demodulation is the process of
A converting digital signals to analog signals
B converting analog signals to digital signals
C combining many low speed channels into one high speed channel
D dividing the high-speed signals into frequency bands
E None of the above
One of the advantages of base modulation over collector modulation of a transistor class C amplifier is
A Improved efficiency
B Better linearity
C High power output per transistor
D The lower modulating power requirement
For telegraphy the most commonly used modulation system is
A FSK
B Two tone modulation
C PCM
D Single tone modulation
In India, ___________ modulation is used for radio transmission
A Frequency
B Amplitude
C Phase
D None of the above
Which of the following represents the correct set of modulation classification?
A Frequency, time period
B Frequency, amplitude
C Amplitude, wavelength
D Wavelength, frequency
Which of the following is a digital modulation technique?
A PCM
B PSK
C DM
D All

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