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Subel. J
6 questions
Subelement J
MF-HF Equip. and Comms:
Section 93
MF-HF Addressing Modes
Which of the following keystrokes or characters is sent as part of ARQ communications to request a direct TELEX call to a shore-based location?
  • Correct Answer
    DIRTLX023123456+
  • MSG+
  • GA+?
  • ENTER
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The DIRTLX command should be given to a coast station at what point in time?
  • Immediately following the automatic exchange of answerbacks.
  • Correct Answer
    After receipt of the Go Ahead indication following the automatic exchange of answerbacks.
  • After receipt of the Go Ahead indication followed by the automatic exchange of answerbacks.
  • Sent at the beginning of the message to request a direct TELEX connection.
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Which automatic TELEX command should be sent by a ship station during SITOR (NBDP) operations to properly address a weather report to the national weather authority?
  • WX+ followed by the text of the report.
  • OBS+ then MSG+ to indicate weather report.
  • Correct Answer
    OBS+ and then send the weather report.
  • GA+? then OBS+ and then send the weather report.
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Which of the following would be a valid automatic TELEX code and number for a request for a real-time TELEX connection to a shore-based TELEX terminal?
  • DIRTLX then wait for MSG+ to dial 023419645+.
  • DIRTLX23122445+.
  • DIRTLX followed by GA+? and the TELEX number.
  • Correct Answer
    DIRTLX023424998+.
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When requesting a direct TELEX connection to a shore-based TELEX terminal the GMDSS operator must:
  • Correct Answer
    DIRTLX, 0, Country code, TELEX number, +.
  • DIRTLX, 00, Ocean Area Code, TELEX number, +.
  • DIRTLX, 0, Ocean Area, TELEX number, +.
  • DIRTLX, 00, Country code, TELEX number.
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To correctly address a SITOR (NBDP) message and transmit it "live" to a shore-based office the GMDSS operator would dial which sequence:
  • DIRTLX0051440344+
  • Correct Answer
    DIRTLX051440344+
  • DIRTLX581440344+
  • DIRTLX05811500260+
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