MF-HF Equip. and Comms:
MF-HF ARQ Operation - OP Codes & Procedures:
What sequence of ARQ codes matches the following: manual over, end of message text, end of connection to land destination terminal?
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NNNN, KKKK, GA+
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KKKK, DIRTLX, NNNN
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Correct Answer+?, NNNN, KKKK
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+?, . . . . ., BRK+
Tags: none
What sequence of ARQ codes matches the following: request establishment of a landline, end radio link after traffic is done, request connection for AMVER messages?
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NNNN, KKKK, AMV+
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KKKK, BRK+, AMV+
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BRK+, DIRTLX+, AMV+
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Correct AnswerDIRTLX, BRK+, AMV+
Tags: none
What sequence of ARQ codes matches the following: Send synoptic weather, switch control from a station currently transmitting over to the receiving station, terminate phasing with coast station.
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Correct AnswerOBS+, +?, BRK+
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OBS+, WRU then Here is, BRK+
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OBS+, GA+?, KKKK
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AMV+, +?, KKKK
Tags: none
A manual ship-ship ARQ message would typically begin with what sequence of ARQ procedures?
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Initiate call with CS selcal, observe exchange of answer-backs (WRU-AAB), send message.
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Correct AnswerInitiate call with ship selcal, enter "HERE IS" then "WRU" commands and send message.
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After phasing with the other vessel, observe exchange of answer-backs (WRU-AAB), send message and then KKKK to end the transmission.
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After phasing with the other vessel then send GA+? to determine if they are ready to receive your message.
Tags: none
What sequence of ARQ codes matches the following: shore station indicates it is awaiting instructions from the vessel, vessel requests a live connection to a land telex number, vessel indicates it is done with the coast station?
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WRU-AAB, DIRTLX, NNNN
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Correct AnswerGA+?, DIRTLX, BRK+
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GA+?, DIRTLX, KKKK
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WRU-AAB, DIRTLX, .....
Tags: none
All country codes which are transmitted by MF/HF SITOR (NBDP) are preceded by which character(s)?
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00
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+
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Correct Answer0
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DIR
Tags: none
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