Gmdss : Element 7 - 563/600
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| Which of the following is true of SITOR Mode B (FEC), in the presence of static crashes. |
| A) Data flow rate depends on signal propagation. |
| B) Idle characters are sent upon request. |
| C) Transmitter and receiver cannot synchronize. |
| D) FEC reduces the error rate by transmitting each character twice. |
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