Which HF SITOR (NBDP) mode would be selected...

Question 1 / 201W2OY8ZFaeEmDGjB6aqk

Question 1 of 201W2OY8ZFaeEmDGjB6aqk

Which HF SITOR (NBDP) mode would be selected to receive MSI broadcasts from high seas shore stations?

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Question 1 of 20

1W2OY8ZFaeEmDGjB6aqk

Which HF SITOR (NBDP) mode would be selected to receive MSI broadcasts from high seas shore stations?

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🔍 Key Concepts

• HF SITOR (NBDP) is used both for one-way broadcasts and two-way traffic • Maritime Safety Information (MSI) from high seas shore stations is a one‑way broadcast to many ships at once • Different SITOR modes: FEC (Forward Error Correction) vs ARQ (Automatic Repeat reQuest)

💭 Think About

• Is MSI from a high seas shore station meant for a single ship or for all ships in the area at the same time? • Which SITOR mode is designed so that the receiver does not have to transmit back any acknowledgments? • Between the listed choices, which involve broadcast reception rather than a two‑way link?

✅ Before You Answer

• Verify which SITOR mode is specifically associated with one‑way broadcast of safety information • Eliminate options that require a return (acknowledgment) transmission from the ship • Confirm that the selected mode is actually a digital HF SITOR/NBDP mode, not just a general modulation type like AM

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Question 1 of 20

Which HF SITOR (NBDP) mode would be selected to receive MSI broadcasts from high seas shore stations?

FEC

RTTY

ARQ

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