A. Frequency
B. Phase
C. Amplitude
D. None of the above
Related Mcqs:
- A 50 kW carrier is to be amplitude modulated to a level of 85%. What is the carrier power after modulation ?
A. 50 kW
B. 5 kW
C. 8 kW
D. 25 kW - In TV transmission, sound signal is ______________modulated?
A. Amplitude
B. Frequency
C. Phase
D. None of the above - In radio transmission, the medium of transmission is ________________?
A. Space
B. An antenna
C. Cable
D. None of the above - In pakistan, ______________ modulation is used for radio transmission?
A. Frequency
B. Amplitude
C. Phase
D. None of the above - In amplitude modulation, the _____________of carrier is varied according to the strength of the signal?
A. Amplitude
B. Frequency
C. Phase
D. None of the above - If modulation is 100% then signal amplitude is ____________arrier amplitude?
A. Equal to
B. Greater than
C. Less than
D. None of the above - The signal voltage induced in the aerial of a radio receiver is of the order of ________________?
A. mV
B. µV
C. V
D. None of the above - Overmodulation (amplitude) occurs when signal amplitude is _____________ carrier amplitude?
A. Equal to
B. Greater than
C. Less than
D. None of the above - A 100 V carrier is made to vary between 160 V and 40 V by the signal. What is the modulation factor ?
A. 3
B. 6
C. 5
D. None of the above - If a radio receiver amplifies all the signal frequencies equally well, it is said to have high ________________?
A. Sensitivity
B. Selectivity
C. Distortion
D. Fidelity