During SITOR (NBDP) ARQ operations through a...

Question 1 / 20n26tktK0DaddA9o0JQpf

Question 1 of 20n26tktK0DaddA9o0JQpf

During SITOR (NBDP) ARQ operations through a coast station, what should the GMDSS operator do during the "Automatic Exchange of Answerbacks"?

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Question 1 of 20

n26tktK0DaddA9o0JQpf

During SITOR (NBDP) ARQ operations through a coast station, what should the GMDSS operator do during the "Automatic Exchange of Answerbacks"?

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🔍 Key Concepts

• Role of ARQ (Automatic Repeat reQuest) mode in SITOR/NBDP communications • Meaning of "Automatic Exchange of Answerbacks" between a ship station and a coast station • Normal sequence of actions for a GMDSS operator when establishing and setting up an NBDP link

💭 Think About

• In ARQ mode, what is handled automatically by the equipment, and what requires manual input from the operator? • What is the purpose of exchanging answerbacks at the beginning of a SITOR NBDP call with a coast station? • At what point in the link setup does the operator actually choose or send a message or command?

✅ Before You Answer

• Verify what the answerback actually is (ID of the station vs. content of the message**)** • Check whether the operator must manually trigger any answerback during ARQ or if the system handles it after link establishment • Confirm when the system or coast station prompts the operator for commands or message sending in the normal call sequence

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Question 1 of 20

During SITOR (NBDP) ARQ operations through a coast station, what should the GMDSS operator do during the "Automatic Exchange of Answerbacks"?

Do nothing other than wait for a GA+? prompt and then issue the desired command.

Send a "WRU" then a "Here is" when requested to do so by the coast station.

Send the necessary message file and then wait for time and charges.

Wait for the coast station to transmit a menu of possible commands and select the desired action.

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Question 1 / 20n26tktK0DaddA9o0JQpf

Question 1 of 20n26tktK0DaddA9o0JQpf

During SITOR (NBDP) ARQ operations through a coast station, what should the GMDSS operator do during the "Automatic Exchange of Answerbacks"?

Back

Question 1 of 20

n26tktK0DaddA9o0JQpf

During SITOR (NBDP) ARQ operations through a coast station, what should the GMDSS operator do during the "Automatic Exchange of Answerbacks"?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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