Discussion
The threshold effect in FM describes
Answer: D
Above threshold FM gives a large signal-to-noise improvement; below it the output degrades abruptly rather than gracefully, which is why an FM link is either good or useless with little middle ground. AM degrades smoothly by comparison. Minimum deviation is a system design choice. Limiter action begins well below threshold. And over-deviation from pre-emphasis is a transmitter matter. The sharpness of the threshold is what makes FM link budgets less forgiving than AM ones.
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