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G8B09:Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

G8B09G8B

Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G8B09 is It results in the best signal-to-noise ratio.

The reason is it results in the best signal-to-noise ratio. Connect the cause in the question to this direct result instead of memorizing the answer letter.

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