(TCO 3) Referring to the block diagram below, which block is the mixer? – Homeworkmade

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1. (TCO 3) Referring to the block diagram below, which block is the mixer?
2. (TCO 3) An AM receiver is tuned to receive a carrier frequency of 960KHz and is using high-side injection. What would be the frequency of the local oscillator?
3. (TCO 3) An AM receiver is tuned to receive a carrier frequency of 1040KHz and is using high-side injection. What would be the frequency of the image frequency?
4. (TCO 3) An AM receiver is tuned to receive a carrier frequency of 1550KHz and is using low-side injection. What would be the image frequency?
5. (TCO 3) An AM receiver is tuned to receive a carrier frequency of 1550KHz and is using low-side injection. What would be the image frequency?