Radio Amateur Quiz Canadian License

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Question A-002-012-003

Which filter type is described as having ripple in the passband and a sharp cutoff?

Correct Answer

A Chebyshev filter

Explanation

A Chebyshev filter achieves a steeper roll-off (sharper cutoff) than a Butterworth filter of the same order, at the expense of allowing some ripple (variations in amplitude) in the passband.

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