Discussion
What does the guard band between FM channels accommodate?
Answer: B
Carson's rule captures about ninety-eight per cent of the power, so the guard band holds the remaining Bessel tail together with any frequency error. The pilot and its harmonics lie in the baseband, well inside the deviation. The receiver's intermediate frequency is a separate matter entirely. And transmitter harmonics fall at multiples of the carrier, far outside the band. Knowing what a guard band is for explains why it is twenty kilohertz rather than an arbitrary figure.
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