A. The difference frequency is closer to oscillator frequency
B. Lower frequencies are easier to amplify
C. Only the difference frequency can be modulated
D. None of the above
Related Mcqs:
- In superhetrodyne receiver, the input at mixer stage is________________?
A. IF and RF
B. RF and AF
C. IF and AF
D. RF and local oscillator signal - Most of the amplification in a superhetrodyne receiver occurs at ______________stage?
A. IF
B. RF amplifier
C. Audio amplifier
D. Detector - The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is _______________?
A. 455 kHz
B. 1310 kHz
C. 1500 kHz
D. 1520 kHz - The superhetrodyne principle provides selectivity at ______________stage?
A. RF
B. IF
C. audio
D. Before RF - 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 - 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 - In a radio receiver, noise is generally developed at _______________?
A. IF stage
B. Receiving antenna
C. Audio stage
D. RF stage - 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 - In a radio receiver, we generally use ………….. oscillator as a local oscillator
A. Crystal
B. Wien-bridge
C. Phase-shift
D. Hartley - The diode detector in an AM radio receiver is usually found _____________?
A. Before the first RF stage
B. After the first RF stage
C. After several stages of amplification
D. None of the above
