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← TechnologyWhich outcome occurs when packet loss exceeds FEC limits in a satellite communication downlink?
A)Signal lock is falsely indicated
B)Frame synchronization becomes unreliable✓
C)Doppler shift is over-corrected
D)Transmission redundancy is inefficiently utilized
💡 Explanation
Uncorrectable packet loss disrupts the decoder's timing recovery loop leading to frame synchronization failure because forward error correction cannot properly reassemble signal without some correctly received packets; therefore, the receiver incorrectly orders data rather than erroneously indicating a lock.
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