Which of the following is a characteristic to be possessed by a roofing filter?(a) Low insertion loss(b) Fixed bandwidth(c) High insertion loss and fixed bandwidth(d) High insertion lossI got this question during an internship interview.I would like to ask this question from RF and IF Processing Tradeoffs topic in division Technology Tradeoffs in Software Defined Radio of Cognitive Radio

Which of the following is a characteristic to be possessed by a roofin

1.	Which of the following is a characteristic to be possessed by a roofing filter?(a) Low insertion loss(b) Fixed bandwidth(c) High insertion loss and fixed bandwidth(d) High insertion lossI got this question during an internship interview.I would like to ask this question from RF and IF Processing Tradeoffs topic in division Technology Tradeoffs in Software Defined Radio of Cognitive Radio
Answer» Correct OPTION is (a) Low insertion LOSS The EXPLANATION is: A ROOFING filter must have low insertion loss, programmable bandwidth and programmable center frequency for effective interference suppression.

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