A trimmer is basically a

More Questions from Radio Receivers

• In radio receiver, the maximum contribution to noise is from
• 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. In receivers operating upto the limit of shortwave broadcasting the local oscillator often used is
• A communication channel with additive white Gaussian noise, has a bandwidth of 4 kHz and an SNR of 15. Its channel capacity is
• An arbitrary signal m (t) has zero average value and it is bandlimited to 3.2 kHz. It is sampled at the rate of 8 K samples/S. The samples are passed through an ideal bandpass filter with centre frequency of 32 kHz and bandwidth of 6.4 kHz. The output of band pass filter is
• Noise limiter is provided on AM receivers to
• Double spotting in a receiver is due to
• Selectivity varies with receiving frequency, frequency is raised.
• Which curve represents the fidelity curve of a standard receiver?
• The passband of the tuned circuits of a radio receiver should be equal to
• Which of the following circuit cannot be used to demodulate SSB?

Discussion & Comments