Element 7: GMDSS Radio Operating Practices

effective 8/01/2006

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7-A-090: MF-HF: ARQ Operation #3: Operating Codes & Procedures

7-90J1: Which of the following keystrokes or characters is sent as part of ARQ communications to end the radio link?

BRK+

NNNN

KKKK

. . . . .



7-90J2: Which of the following keystrokes or characters is sent as part of ARQ communications to signal the end of communications with a land based TELEX terminal?

KKKK

NNNN

BRK+

. . . . .



7-90J3: What character(s) are transmitted to switch control from a station currently transmitting, over to the receiving station during ATOR communications in the ARQ mode?

+?

+

ENTER

END



7-90J4: Which character(s) must follow most command codes to a coast station using ATOR?

+

#

*

GA+?



7-90J5: Which character(s) are sent by the shore station to indicate it has shifted control to, and is awaiting instructions from, the vessel?

GA+?

WRU

KKKK

. . . . .



7-90J6: All country codes which are transmitted by MF/HF SITOR are preceded by which character(s)?

0

00

+

DIR





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7-A-089: MF-HF: ARQ Operation #2: Answerbacks
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Element 7: GMDSS Radio Operating Practices
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7-A-091: MF-HF: ARQ Operation #4: Operating Codes & Procedures