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E4E01:What problem can occur when using an automatic notch filter (ANF) to remove interfering carriers while receiving CW signals?

E4E01E4E

What problem can occur when using an automatic notch filter (ANF) to remove interfering carriers while receiving CW signals?

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E4E01 is Removal of the CW signal as well as the interfering carrier.

The key fact is Removal of the CW signal as well as the interfering carrier. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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