A deep space probe transmits telemetry using 64-QAM. What happens to the information throughput when sporadic solar flares increase background noise substantially?

💡 Explanation

Increased noise degrades the signal-to-noise ratio; therefore, error correction coding (ECC) must increase its overhead, reducing the effective information throughput because a larger portion of the signal is used for error detection/correction rather than raw data. This occurs rather than maintaining throughput, which is impossible given the noise increase.

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