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A _____filter establishes maximum and minimum possible level for processing.

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A _____filter establishes maximum and minimum possible level for processing.

(a) adaptive

(b) flooring

(c) roofing

(d) content

I had been asked this question during an internship interview.

This question is from RF and IF Processing Tradeoffs topic in division Technology Tradeoffs in Software Defined Radio of Cognitive Radio

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Correct choice is (c) roofing

To explain: A roofing filter establishes the maximum (roof) and minimum (floor) linearly possible level for processing. It is also referred to as co-site filter.

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