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← TechnologyWhich distortion occurs when digital signals traverse unshielded twisted pair cables?
A)Near-end crosstalk power degradation✓
B)Additive white Gaussian noise saturation
C)Phase jitter accumulation
D)Frequency shift keying corruption
💡 Explanation
Near-end crosstalk (NEXT) increases signal interference because electromagnetic coupling induces unwanted signals from nearby transmitters. Therefore, signal power degrades at the receiver rather than experiencing phase changes because cable twisting reduces external EMI sensitivity.
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