Discussion
What happens to image rejection as the intermediate frequency is raised?
Answer: A
Raising the intermediate frequency pushes the image further from the wanted signal, where the preselector's skirts attenuate it more, so rejection improves. That is the central argument for a high first intermediate frequency. The mixer's difficulty does not enter into it. Rejection depends on both the preselector's selectivity and the image's distance, so it is not the preselector alone. And a higher intermediate frequency makes narrow filtering harder rather than easier, which is exactly the tension the next question addresses.
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