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← TechnologyWhich consequence results when symbol synchronization is compromised in quadrature amplitude modulation (QAM) signal processing?
A)Increased bit error rate (BER)✓
B)Reduced spectral efficiency
C)Phase noise amplification occurs
D)Decreased signal transmit power
💡 Explanation
Increased BER results from sync errors in QAM because the demodulator samples symbols at incorrect times. The mismatched timing causes incorrect symbol decisions, resulting in errors; therefore, BER increases rather than phase noise issues because synchronization directly impacts decision thresholds.
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