The receiver in the block diagram is not receiving any incoming stations - the complaint is no sound. On the bench, you injected a 1 mV, 50% modulated AM signal at 455 kHz into Point D, resulting in a very loud tone in the speaker. Which of the selections below are true? 0 A B D Intermediate Trequency (IT) Amplifier Local Ocillator E The IF amp, detector, and audio amp are working. You should inject signal at Point E to see if the trouble is in the detector stage. You should inject signal at Point B (at the carrier frequency) to test the frequency converter. There's probably a short in the antenna. You should inject audio at Point F to test the audio amplifier. Berband F

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Question 33
The receiver in the block diagram is not receiving any incoming stations - the complaint is no sound.
On the bench, you injected a 1 mV, 50% modulated AM signal at 455 kHz into Point D, resulting in a very loud tone in the speaker.
Which of the selections below are true?
A
B
There's probably a short in the antenna.
Local
Oscillator
455 KHz
Intermediate
Frequency
(IF)
Amplifier
You should inject audio at Point F to test the audio amplifier.
The IF amp, detector, and audio amp are working.
✔ You should inject signal at Point E to see if the trouble is in the detector stage.
✔ You should inject signal at Point B (at the carrier frequency) to test the frequency converter.
E
Baseband output
해
4 pts
Transcribed Image Text:Question 33 The receiver in the block diagram is not receiving any incoming stations - the complaint is no sound. On the bench, you injected a 1 mV, 50% modulated AM signal at 455 kHz into Point D, resulting in a very loud tone in the speaker. Which of the selections below are true? A B There's probably a short in the antenna. Local Oscillator 455 KHz Intermediate Frequency (IF) Amplifier You should inject audio at Point F to test the audio amplifier. The IF amp, detector, and audio amp are working. ✔ You should inject signal at Point E to see if the trouble is in the detector stage. ✔ You should inject signal at Point B (at the carrier frequency) to test the frequency converter. E Baseband output 해 4 pts
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