The function of an AM detector circuit is to
Answer: D
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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 rejection ratio at 25 MHz will be
Answer: A
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FM amplifier in a superheterodyne receiver
Answer: D
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Three point tracking can be achieved with
Answer: B
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Double spotting in a receiver is due to
Answer: C
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An unmodulated voltage 10 V effective is applied to a dioxide detector in which load resistance is 4 x 10-5 ohms. A micrometer shows that the rectified DC current in this resistance is 30 A. The efficiency of detection is
Answer: D
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Statement 1
Diode is the most common device used for demodulation.
Statement 2
A discriminator is a FM detector.
Answer: C
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In a ratio detector
Answer: A
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Which of the following oscillator is generally not used at VHF?
Answer: C
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In a broadcast superheterodyne receiver
Answer: D
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