What is the channel capacity for a teleprinter channel with a 300-hz bandwidth and a signal-to-noise ratio of 3 dB, where the noise is white thermal noise?

一个电传打印机的带宽是300hz，信道内所传信号的平均功率与白热噪声功率的比值为3分贝，问其信道容量是多少？

youdao

It provides a remarkably flat frequency response over a 10-Hz to 22-kHz bandwidth, a dynamic range of 92 dB, and algorithmic delay of less than 1.89ms.

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