Discussion
What does automatic gain control act upon?
Answer: B
The loop rectifies the detected carrier level and reduces the gain of the stages ahead of the detector, holding its input roughly constant over an enormous range of received strengths. The listener's volume control stays under manual control after the detector, deliberately. Oscillator amplitude is set by its own circuit. And the detector's load is a fixed component. Feeding a measured output back to an earlier gain is the general shape of every automatic level system.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development