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Receivers-1 Starter Quiz
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Question 1
The intermediate frequency (IF) of an AM superhetrodyne receiver is 450 kHz and the local oscillator frequency (fLO) of the mixer is set to be higher of the two possible values, such that fLO >fc always. If the receiver signal is 650 kHz, then the carrier frequency of the corresponding image will be equal to ________kHz.
Question 2
The intermediate frequency of an AM super-heterodyne receiver is 475 KHz and local oscillator frequency (fLO) of mixer is set at higher of two possible values such that fLO< fc always. If carrier frequency (fc) of the received signal is 1050 KHz, find carrier frequency (in kHz) of corresponding image signal.
Question 3
A super heterodyne receiver having RF amplifier tuned to 1200 kHz, The intermediate frequency is 450 kHz. The quality factor of the tuned circuit at RF amplifier and at the mixer are same and is equal to 65, then the image frequency rejection ratio is?
Question 4
A superhetrodyne receiver operates in the frequency range 450 kHz-1350 kHz, with the intermediate frequency of 450 kHz. If R = Cmax/Cmin denotes the required capacitance ratio of the local oscillator and I denote the image frequency (in kHz) of the incoming signal. If the receiver is tuned to 800 kHz, then
Question 5
Resonant frequency of a Tuned RF receiver is at 2 MHz and its bandwidth is 10 kHz. However due to some anomalies in the circuit, its actual bandwidth is found to be 8 kHz. What is the error while the Q-factor of the circuit is being calculated?
Question 6Multiple Correct Options
In a super heterodyne receiver, the output of the mixer is 500 KHz. The local oscillator frequency is adjusted to 2000 KHz. The receiver is tuned to
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