Points received 0 of 5 comments remember sa works in

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Points Received:0 of 5 Comments:Remember, SA works in frequency domain. Grading Summary Week 3 QuizThese are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below. Date Taken: 9/14/2014Time Spent:08 min , 30 secs Points Received:15 / 25 (60%) Question Type:# Of Questions:# Correct:Multiple Choice53Grade Details - All Questions
Question 1.Question :(TCO 3) Referring to the block diagram below, which block is the mixer?
Points Received:5 of 5 Comments:Question 2.Question :(TCO 3) An AM receiver is tuned to receive a carrier frequency of 960KHzand is using high-side injection. What would be the frequency of the local oscillator?
Points Received:5 of 5 Comments:
Question 3.Question :(TCO 3) An AM receiver is tuned to receive a carrier frequency of 1040KHz and is using high-side injection. What would be the frequencyof the image frequency?
Points Received:0 of 5 Comments:High side injection: Fim = Fcar + 2Fimf = 1040 kHz + 910 kHz = 1950 kHz Question 4.Question :(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?Student Answer:640KHz 1095KHz 2005KHz 2460KHz Points Received:0 of 5 Comments:Low side injection: Fim = Fcar - 2Fimf = 1550 kHz - 910 kHz = 640 kHz
Question 5.Question :(TCO 3) Referring to the block diagram below, signal path I would be: Student Answer:the power supply the intermediate frequency the automatic gain control the audio signal
Points Received:5 of 5

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