Gmdss : Element 7 - 557/600
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| The DIRTLX command should be given to a coast station at what point in time? |
| A) Immediately following the automatic exchange of answerbacks. |
| B) Before receipt of the Go Ahead indication followed by the automatic exchange of answerbacks. |
| C) Sent at the beginning of the message to request a direct TELEX connection. |
| D) After receipt of the Go Ahead indication following the automatic exchange of answerbacks. |
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