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Higher Study | Communication Systems | Receivers

In an AM system receiver. the mixer translates the carrier frequency fc to a fixed intermediate frequency of 450 kHz. Given a broadcast signal of frequency 900 kHz. What is the corresponding image frequency when a superhetrodyne receiver is employed with local oscillator frequency greater than the broadcast signal frequency?
Which of the following is NOT a requirement of Hi-Fi systems?
The frequency to which the incoming signal is changed in super heterodyne reception is called
A communication receiver has an intermediate frequency of 9 MHz. What is the frequency of its oscillator when it is tuned to 15 MHz?
The range of super-heterodyne receive tuning when fL0 > fc with broadcast frequency ranges 540 to 1600 KHz
In a broadcast superheterodyne receiver, having no RF amplifier, the IF = 455 kHz. What is the image frequency if the receiver is tuned to 1000 kHz?
Which of the following advantages of superheterodyne radio over other forms of radio is INCORRECT?
Which of the following statements are correct with reference to superheterodyne receivers? (i) The main advantage of the superheterodyne receiver is its better tracking (ii) The main advantage of the superheterodyne receiver is an improvement in sensitivity (iii) The image channel rejection in superheterodyne receiver comes from IF stages only (iv) The image channel rejection in the superheterodyne receiver comes from the RF stage only Choose the correct answer from the code given below:
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