Radio Receivers Questions

• When fs is the signal frequency and fi is the intermediate frequency, then image frequency fsi is given by
• As compared to tuned radio frequency receivers which of the following is the advantage of using superheterodyne receivers?
• Padders are used in a receiver to
• Most popular IF for receivers tuning to 540 to 1650 kHz is
• In a ratio detector
• Standard AM radio broadcasts are confined to
• In a communication system, noise is most likely to affect the signal
• In a receiver, which of the following device has IF input but RF output?
• Which of the following noise does not occur in transistors?
• A transmitter serial current contains
• It is known that noise phase modulates the FM wave. As the noise side band frequency approaches the carrier frequency, the noise amplitude
• In superheterodyne receivers, the local oscillator is used to
• In a radio receiver, the local oscillator is tuned to a frequency
• The selectivity of a radio receiver is
• Which of the following statement about the amplitude limiter is not valid?
• Which of the following statement about receivers is false?
• Neutralization is used in RF amplifiers to
• In a superheterodyne receiver
• Which of the following cannot be used to demodulate SSB?
• FM amplifier in a superheterodyne receiver