Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which receiver specification would you tighten against a whistle from a distant strong signal two intermediate frequencies away?

  • A.Image rejection
  • B.Adjacent-channel selectivity
  • C.Sensitivity
  • D.Automatic gain control range

Answer: A

A signal at that particular offset is the image, so preselection ahead of the mixer is what must improve - or the intermediate frequency must be raised so the image falls further out. Adjacent-channel selectivity acts on the wrong offset. Sensitivity is unrelated. And gain control range governs how strong a signal can be handled rather than which frequencies get through. The offset named in the complaint identifies the mechanism uniquely.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.