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← HistoryWhich outcome occurred when 19th-century transatlantic cables experienced excessive signal attenuation?
A)Use of lower frequency carrier waves
B)Implementation of time-division multiplexing
C)Adoption of impedance matching techniques✓
D)Switching to single-conductor cable design
💡 Explanation
When signal attenuation was high, impedance mismatches along the cable caused signal reflections and loss because the signal energy was not efficiently transferred. Therefore, impedance matching techniques were adopted, rather than options that address bandwidth issues, data transmission schemes, or cable construction.
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