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← ScienceWhich outcome occurs when phased array radar transmits with incorrectly calibrated antenna amplitudes?
A)Increased interference sidelobe levels✓
B)Reduced overall transmission power
C)Frequency shift in the main beam
D)Complete signal cancellation at target
💡 Explanation
When antenna amplitudes are not correctly calibrated, destructive interference occurs in unintended directions because the intended constructive interference pattern is disrupted, leading to raised sidelobe levels. Therefore increased sidelobe results, rather than power reduction, because signal is redistributed instead of eliminated, and frequency shift/cancellation require different array errors.
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