Discussion
What does the automatic gain control loop act upon?
Answer: B
The loop rectifies the detected level and feeds it back to reduce the gain of the radio and intermediate frequency stages when the signal is strong, holding the detector's input roughly constant across a huge range of received strengths. It cannot touch the transmitter. The listener's volume control sits after the detector and is deliberately left under manual control. And the oscillator frequency is set by the tuning, not by signal strength.
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