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Tneary Tneary
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Posts: 463
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5 years ago

Question 1.

In an AM or FM receiver, the local oscillator is tuned to the

• IF frequency

• IF + modulation frequency

• carrier + IF frequency

• carrier frequency

Question 2.

The purpose of AGC is to

• recover the audio signal

• adjust the amplitude of higher frequency signals

• suppress noise outside the passband

• adjust the gain to maintain signal levels
Textbook 
Electronic Devices

Electronic Devices


Edition: 10th
Author:
Read 100 times
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Answer verified by a subject expert
brigettelearnbrigettelearn
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Posts: 359
5 years ago
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