Radio Receivers Questions

• In a radio receiver
• Which of the following produces upper and lower side frequencies?
• In a broadcast superheterodynes receiver having no RF amplifier, the loaded Q of the antenna coupling circuit is 100. If the intermediate frequency is 455 kHz. The image frequency at 1000 kHz will be
• A receiver having poor IF selectivity will also have poor
• The typical squelch circuit
• Most of the amplification of the received signal is obtained in a superheterodyne receiver from the
• The household radio receiver uses
• Superheterodyne receiver can be used in
• A low ratio of the A.C. load impedance of a diode detector results in
• Vividh Bharati programme is transmitted in
• Statement 1 Diode is the most common device used for demodulation. Statement 2 A discriminator is a FM detector.
• Three point tracking can be achieved with
• In a transistor receiver, the use of FET as the first stage amplifier is likely to
• A padder is basically a/an
• FM receivers using the standard 88 to 108 MHz band use IF of
• Power spectral density of white noise
• A FM signal with modulation index Mf is passed through a frequency doubler. The wave in the output of the doubler will have modulation index of
• In a FM waveform, the side bands are spaced at intervals equal to
• The purpose of incorporating a pre-selector stage in a receiver is to
• In a radio receiver, the local oscillator is always tuned to a frequency higher than the incoming frequency to