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The number and characteristics of roofing filter are determined by modulation of the subscriber signal.

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The number and characteristics of roofing filter are determined by modulation of the subscriber signal.

(a) True

(b) False

I got this question in exam.

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

1 Answer

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Best answer
The correct choice is (a) True

To explain I would say: The modulation of the subscriber signal and bandwidth of the passband interference determine number and characteristics of roofing filter. The use of roofing filter establishes a noise floor and prevents dropped calls.

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