Discussion
Which scheme puts the greatest demand on transmitter frequency accuracy?
Answer: B
With no transmitted carrier and no symmetry to lock to, an SSB receiver can only set its reinserted carrier from its own dial, so any transmitter frequency error appears directly as an audio pitch shift. Both ends must therefore be accurate. Full-carrier AM is envelope detected and tolerant. DSB-SC provides a symmetric spectrum that a Costas loop can lock to, which relieves the requirement. And vestigial sideband retains a carrier for the receiver to follow.
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