Discussion
Why does a satellite earth station mount its low-noise amplifier at the dish?
Answer: B
Because any feeder loss ahead of the first amplifier adds straight to the system noise figure, the amplifier is mounted at the feed and the long cable run then follows the gain, where its loss is harmless. Local oscillator cabling is a separate concern. Transmit power is a different link. And directivity is fixed by the dish geometry. The principle is general: put the gain before the loss.
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