Question 7 (25 Marks) - FM Radio The Block diagram below shows a heterodyne FM radio receiver. Precision BPF@ BPF@ RF Am

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Question 7 25 Marks Fm Radio The Block Diagram Below Shows A Heterodyne Fm Radio Receiver Precision Bpf Bpf Rf Am 1 (29.22 KiB) Viewed 15 times

Question 7 (25 Marks) - FM Radio The Block diagram below shows a heterodyne FM radio receiver. Precision BPF@ BPF@ RF Amp & BPF Limiter & BPF Intermediate frequency BPE Auto Loud- Aup speaker volume knob Front and BPE ~Local Oscillator tuning knob a If the input signal is at 100 MHx, and the intermediate frequency is 10 MHx, at what frequency is the local oscillator? (2 marks Illustrate how heterodyning works in the time domain give equations and the frequency domain show graphically by showing how an input signal at 100 MHx is translated down to the intermediate frequency at 10 MHz. Also draw in all filters. 15 marks 0 -100 100 MH: What is the purpose of the "front end filter"? (3 marks Discriminator