Selection of Intermediate frequency (IF)
Q. Intermediate frequency (IF) should be carefully chosen as- Published on 14 Oct 15a. High IF results in poor selectivity
b. High IF results in problems in tracking of signals
c. Image frequency rejection becomes poor at low IF
d. All of the above
ANSWER: All of the above
Intermediate frequency (IF) should be carefully chosen as
- High IF results in poor selectivity and therefore poor rejection of adjacent channels.
- High IF results in problems in tracking of signals in the receivers.
- Image frequency rejection becomes poor at low IF or if very high.
